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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Digital Multimeter
7 functions, 19 ranges. DC voltage 200mV–1kV, AC voltage 200–750V, DC current 200µA–10A, resistance 200–2MΩ, transistor & diode test.
Out of stockAMD Ryzen 5 5600X
Zen 3, 6 cores / 12 threads, 4.6 GHz boost, AM4. Long-time 1080p gaming king.
Out of stockBlue Yeti X USB Mic
Four-capsule USB condenser, real-time LED metering, 4 pickup patterns.
Out of stockSatechi Thunderbolt 4 Multimedia Pro Hub
TB4 hub, 3x TB4 ports + HDMI 8K, SD, 100W PD passthrough.
MSI GeForce RTX 5050 GAMING OC 8GB GDDR6 Graphics Card
[Graphics Card] MSI GeForce RTX 5050 GAMING OC 8GB GDDR6 Graphics Card MSI's iconic GAMING series brings high performance, low-noise efficiency, and tight aesthetics that hardcore gamers have come to recognize and trust. Powered by TWIN FROZR 9 thermal design with TORX FAN 5.0 and Airflow Control. ⭐ Key Features - TWIN FROZR 9 Thermal Design - TORX Fan 5.0 with fan blades linked by outer ring arcs - Solid nickel-plated copper baseplate - Mystic Light RGB sync with custom lighting presets - MSI Center software for real-time hardware telemetry 📋 Technical Specifications - Memory: 8GB GDDR6 - Boost Clock: 2565 MHz (Extreme Performance) - Interface: PCI Express Gen 5 - Power Consumption: 130W (1x 8-pin) - Recommended PSU: 550W 📦 Package Includes - 1 x MSI GeForce RTX 5050 GAMING OC 8GB Graphics Card - 1 x Quick User Guide
AMD Ryzen 5 8500G Processor with Radeon 740M Graphics
[Processor] AMD Ryzen 5 8500G Desktop APU Processor with Radeon Graphics Next-generation AM5 APU combining 6 high-efficiency Zen 4 / Zen 4c cores with integrated AMD Radeon 740M RDNA 3 graphics. Enjoy smooth 1080p gaming and multimedia without needing an expensive dedicated graphics card. ⭐ Key Features - 6 Cores (2 Zen 4 + 4 Zen 4c) and 12 Threads - Integrated AMD Radeon 740M Graphics (RDNA 3) - DDR5 memory support on latest AM5 socket - 65W TDP power efficiency with Wraith Stealth cooler included - AMD Ryzen Master utility support 📋 Technical Specifications - Socket: AM5 - Cores / Threads: 6 / 12 - Boost Clock: Up to 5.0 GHz - Base Clock: 3.5 GHz - L3 Cache: 16MB - Default TDP: 65W - Included Cooler: AMD Wraith Stealth 📦 Package Includes - 1 x AMD Ryzen 5 8500G Processor - 1 x AMD Wraith Stealth Cooler
BenQ MOBIUZ EX271 27-Inch QHD 180Hz Fast IPS Gaming Monitor
[Monitor] BenQ MOBIUZ EX271 27-Inch QHD 180Hz Fast IPS Gaming Monitor Level up your gaming experience with 2560 x 1440 QHD resolution, 180Hz refresh rate, 1ms MPRT response time, and AMD FreeSync Premium. Features HDRi intelligent auto-brightness tuning and built-in 2.1 channel treVolo sound with integrated subwoofer. ⭐ Key Features - 27" QHD (2560 x 1440) Fast IPS panel - Ultra-smooth 180Hz refresh rate with 1ms MPRT - Proprietary HDRi technology optimizes HDR images based on room lighting - 2.1 channel treVolo speakers with 5W woofer and custom audio modes - Light Tuner with 20 color level adjustments to spot hidden enemies 📋 Technical Specifications - Panel: 27" Fast IPS - Refresh Rate: 180Hz - Response Time: 1ms (MPRT) / 2ms (GtG) - FreeSync: AMD FreeSync Premium - Video Ports: 2x HDMI 2.0, 1x DisplayPort 1.4 📦 Package Includes - 1 x BenQ MOBIUZ EX271 Gaming Monitor - 1 x Ergonomic Tilt/Swivel Stand, DP Cable, Power Cable
Out of stockDigital Multimeter DT-830D
Basic 3½ digit DMM, DC/AC voltage + current, resistance, hFE, diode test. Probes included.
Out of stockUNI-T UT61E True-RMS Multimeter
True-RMS 22000-count DMM, USB data logging, autorange. Bench-grade.
Type-C PD/QC/AFC Fast Charge Decoy Trigger Module – 5V/9V/12V/15V/20V Fixed Output
[Step UP Buck Converter] Type-C PD/QC/AFC Fast Charge Decoy Trigger Module – 5V/9V/12V/15V/20V Fixed Output The Type-C PD/QC/AFC Fast Charge Decoy Trigger Module is a compact USB Type-C power negotiation module designed to request a selected voltage from compatible USB Type-C fast chargers and power banks. It supports QC 2.0/3.0, AFC, PD 2.0 and PD 3.0 protocols, allowing compatible USB-C power sources to provide higher voltage outputs such as 5V, 9V, 12V, 15V or 20V. This module is useful for DIY electronics projects where a USB Type-C PD/QC charger needs to be used as a DC power source for equipment that does not have native USB-C fast-charging support. ⭐ Key Features USB Type-C fast-charge decoy/trigger module Supports PD 2.0 / PD 3.0 Supports QC 2.0 / QC 3.0 Supports Samsung AFC Fixed selectable voltage output Supports 5V / 9V / 12V / 15V / 20V output options Negotiates the required voltage from a compatible charger Suitable for USB-C power banks and PD adapters LED indicators for operating/status indication Compact and lightweight PCB design Useful for DIY power supply and electronics projects Plug-and-play operation with compatible USB-C power sources 📋 Technical Specifications Product Type: USB Type-C Fast Charge Trigger / Decoy Module Input Connector: USB Type-C Input Source: USB-C PD/QC/AFC compatible charger or power bank Supported Protocols: PD2.0, PD3.0, QC2.0, QC3.0, AFC Output Voltage: 5V / 9V / 12V / 15V / 20V Output Type: DC Voltage Selection: Fixed/selectable depending on module version Indicator: LED status indicators Application: DC power conversion and fast-charge voltage triggering 🔧 Applications Converting USB-C PD chargers into DC power supplies Powering DIY electronics projects Arduino and microcontroller projects LED applications Portable electronic equipment DIY laboratory power supplies DC motors and other suitable loads Router/modem power applications where the required voltage matches Powering electronics from USB-C PD power banks Replacing conventional DC adapters with USB-C PD sources 🛠️ How It Works The module does not boost the USB voltage itself. Instead, it communicates with a compatible USB-C power source and sends the required PD/QC/AFC negotiation request. For example, when connected to a compatible PD charger, the module can request: 5V → 9V → 12V → 15V → 20V The charger then provides the negotiated voltage at the module's DC output. ⚠️ Important Notes The connected USB-C charger or power bank must support the required fast-charging protocol and voltage. A standard 5V-only USB charger cannot normally provide 9V/12V/15V/20V through this module. Always verify the selected output voltage with a multimeter before connecting your device. Do not connect a device that requires a lower voltage than the selected output. The module is a trigger/decoy board, not a standalone DC-DC boost converter. Maximum available output power/current depends on the connected USB-C charger/power bank and the module's specifications. Do not short the output terminals. 20V output can damage 5V/9V/12V-only electronics if the wrong voltage is selected. Exact selectable voltages and current capability can vary between board versions. 📦 Package Includes 1 × Type-C PD/QC/AFC Fast Charge Decoy Trigger Module
Digital USB Mobile Power Charging Current Voltage Tester Meter
[Ammeter and Voltmeter] Digital USB Mobile Power Charging Current Voltage Tester Meter The Digital USB Mobile Power Charging Current Voltage Tester Meter is a compact USB testing device designed to measure and display charging voltage and current in real time. It is useful for checking the power output of USB chargers, power banks and other USB-powered devices. ⭐ Key Features Precise current and voltage measurement Simultaneous voltage and current display Bright digital LCD display Straight USB connector design USB Type-A Male input and USB Type-A Female output Compact and lightweight Easy to connect and use Suitable for USB chargers and power banks Compatible with USB-powered devices 📋 Technical Specifications Product Name: Digital USB Mobile Power Charging Current Voltage Tester Meter Color: As per available stock Input Voltage: 3.5V–7.0V Output Voltage: 3.5V–7.0V Current Measurement Range: 0A–3A Voltage Accuracy: ±1% Current Accuracy: ±1% Display Type: Digital LCD Display Screen Size: 0.91 inch Data Display: Voltage and Current simultaneously Power Consumption: ≤0.1W Interface: USB Type-A Male (Input) / USB Type-A Female (Output) Measurement Frequency: 2 times per second Operating Temperature: 0°C–45°C Material: ABS Plastic Dimensions: 64 × 23 × 15mm Weight: 15g Compatibility: USB-powered devices 🔧 Applications Mobile charger testing USB charger testing Power bank testing USB power supply testing Mobile phone charging analysis USB device testing Electronics troubleshooting DIY electronics projects Checking charging voltage and current 🛠️ How to Use Insert the USB Type-A Male connector into the USB charger, power bank or USB power source. Connect the USB-powered device to the USB Type-A Female output. The digital display will show the voltage and charging current. Monitor the readings during charging or testing. 📦 Package Includes 1 × Digital USB Mobile Power Charging Current Voltage Tester Meter ⚠️ Important Notes Do not exceed the specified voltage and current measurement ranges. This tester is intended for USB/DC applications. Actual readings may vary depending on the charger, cable and connected device. Use within the specified operating temperature range.
KWS-MX18 10-in-1 USB Tester Digital LCD Voltage, Current & Power Meter
[Ammeter and Voltmeter] KWS-MX18 10-in-1 USB Tester – Digital LCD Voltage, Current & Power Meter The KWS-MX18 10-in-1 USB Tester is a compact multifunction digital testing instrument designed for monitoring and evaluating USB chargers, power banks, USB ports, mobile charging systems, and other DC power sources. It provides real-time measurement of voltage, current, power, capacity, energy, charging time, resistance, and internal temperature on its digital display. The tester supports a DC voltage range of 4–30V and current measurement up to approximately 5.1A, with power measurement up to 150W. It also provides capacity and energy monitoring, making it useful for checking the actual charging performance and capacity of USB power supplies and power banks. ⭐ Key Features 10-in-1 multifunction USB tester Digital LCD display Real-time voltage and current monitoring Measures power consumption Measures accumulated charging capacity Measures energy consumption Charging time measurement Charging resistance measurement Internal temperature measurement Positive and negative voltage measurement Stores measurement data in 9 groups Power-off memory function Compact and lightweight design Suitable for USB charger and power-bank testing Supports QC2.0 / QC3.0 according to available product information 📋 Technical Specifications Product Type: 10-in-1 USB Digital Tester Model: KWS-MX18 Input Voltage Range: DC 4–30V Current Measurement: 0–5.1A Power Measurement: 0–150W Capacity Measurement: 0–999999mAh Energy Measurement: 0–999999mWh Timing Range: 0–99 Hours Charging Resistance: 0–999.9Ω Internal Temperature: 0–80°C Positive Voltage Measurement: 0–10V Negative Voltage Measurement: 0–10V Memory Groups: 1–9 Display: Digital LCD Material: ABS Dimensions: Approximately 56.6 × 24.7 × 11.2mm Weight: Approximately 13.9g Input Connector: USB Output Connector: USB Function Button: Yes 🔍 10 Measurement Functions Voltage: 4–30V DC Current: 0–5.1A Power: 0–150W Capacity: 0–999999mAh Energy: 0–999999mWh Charging Time: 0–99 hours Charging Resistance: 0–999.9Ω Positive Voltage: 0–10V Negative Voltage: 0–10V Internal Temperature: 0–80°C 💾 Memory Function The KWS-MX18 can store charging measurement information in 9 separate memory groups. This allows you to compare charging capacity and energy measurements from different chargers or devices. The stored data can be viewed using the function button, and an individual memory group can be cleared by holding the button for approximately 3 seconds. 🔘 Button Functions Single Press: View stored measurement data from memory groups 1–9. Long Press: Clear the currently selected memory group. Double Press: Change the display page. Calibration: The device supports voltage and current calibration according to the supplied manual. 🔌 Applications USB Charger Testing Mobile Charger Testing Power Bank Testing USB Port Testing Mobile Phone Charging Analysis USB Cable Testing Power Supply Monitoring DC Power Measurement Electronics Troubleshooting DIY Electronics Projects Charger Performance Testing Battery Charging Analysis 🛠️ How to Use Connect the KWS-MX18 in-line between the USB power source and the USB-powered device. Once powered, the LCD displays the measured electrical parameters. You can use the function button to change display pages and access stored measurement data. It is particularly useful for comparing chargers, power banks, cables, and USB ports by monitoring actual voltage, current, power, capacity, and energy delivered. 📦 Package Includes 1 × KWS-MX18 10-in-1 USB Digital Tester ⚠️ Color Note: Color: White / Black Color will be shipped depending on stock availability. Any one color (White or Black) may be shipped based on available stock. Specific color cannot be guaranteed. ⚠️ Precautions Do not exceed the specified 30V DC input voltage. Do not exceed the specified current measurement range. Ensure correct USB connection direction before use. Keep the tester away from water and excessive moisture. Do not use it for measuring mains AC voltage. The device is intended for DC/USB power measurement. Actual measurement accuracy can depend on the connected source, load, cable, and operating conditions.
Almirah Wardrobe Switch – 250V AC 6A Momentary Push-to-Off Switch
[Mechanical Switches] Almirah Wardrobe Switch – 250V AC 6A Momentary Push-to-Off Switch The Almirah Switch is a compact single-pole momentary push-to-off switch designed for use in almirahs, cupboards, wardrobes, cabinets, and furniture lighting applications. It provides instantaneous switching action and is suitable for applications where an electrical circuit needs to be switched according to the opening or closing of a cabinet or door. The switch features a high-grade polycarbonate body and brass contacts, providing reliable electrical conduction and durability for regular use. Its compact design is intended to fit standard almirah cutouts and supports panel or surface mounting with screw-type wire terminals. With a rating of 250V AC and 6A, an IP20 protection level, and a mechanical life of more than 10,000 operations, this switch is suitable for indoor furniture and cabinet applications. ⭐ Key Features 250V AC rated voltage 6A current rating Single-pole design Momentary push-button operation Push-to-Off action Instantaneous response High-grade polycarbonate construction Brass electrical contacts Compact design for standard almirah cutouts Panel or surface mounting Screw-type wire terminals Glossy white finish Mechanical life of >10,000 operations IP20 protection RoHS compliant 📋 Technical Specifications Product Type: Almirah Switch Switch Type: Momentary Actuator Type: Push Button Circuit Type: Single Circuit Number of Poles: Single Pole Rated Voltage: 250V AC Maximum Voltage: 250V AC Current Rating: 6A Maximum Current: 6A Response Time: Instantaneous Automation Grade: Manual Material: High-Grade Polycarbonate Contact Material: Brass Wire Terminal: Screw-Type Mounting Type: Panel / Surface Mount Protection Level: IP20 Finish Type: Glossy Color: White Operating Temperature: -10°C to +50°C Temperature Range: -10°C to +50°C Mechanical Life: >10,000 Operations Insulation Resistance: 100MΩ Minimum @ 500V DC Contact Resistance: 50mΩ Stroke: Standard Push-to-Off Action Size: Compact; fits standard almirah cutout Weight: Approximately 20g Number of Modules: Single Module UV Stabilized: Normal RoHS Compliance: Yes 🔌 Operation The switch provides a push-to-off momentary action. It is designed for applications where the switch operates automatically through the physical movement of a cupboard, wardrobe, almirah, or cabinet door. 🔧 Applications Almirah Lighting Cupboard Lighting Wardrobe Lighting Cabinet Lighting Furniture Lighting Storage Cabinet Applications Office Cabinets Home Furniture Control Panels Indoor Electrical Applications 🛠️ Installation The switch can be installed using its panel or surface mounting arrangement. Fit the switch into a suitable cutout and secure it firmly. Connect the wires to the screw-type terminals with the power supply switched off during installation. 📦 Package Includes 1 × Almirah Switch – White, 250V AC 6A ⚠️ Precautions Disconnect the power supply before installation or wiring. Do not exceed the 250V AC / 6A rating. Ensure screw terminals are tightened securely. Use suitable wiring for the connected load. Intended primarily for indoor applications. IP20 protection does not provide waterproof protection. Do not use in wet or exposed outdoor environments. Replace the switch if contacts become damaged or operation becomes unreliable. ❓ Frequently Asked Questions Q: What is the voltage and current rating?A: The switch is rated for 250V AC and 6A. Q: What type of switch is it?A: It is a single-pole momentary push-to-off switch. Q: Where can it be installed?A: It is designed for almirahs, cupboards, wardrobes, cabinets, and similar furniture applications. Q: What material is used for the switch?A: The body is made from high-grade polycarbonate, with brass contacts. Q: What is the mechanical life?A: The supplied specification states a mechanical life of more than 10,000 operations.
25 Watt Soldering Iron with 3mm Tip
[Soldering Iron] 25W Soldering Iron – Deluxe Economic The 25W Soldering Iron – Deluxe Economic is a compact and practical soldering tool designed for electronics assembly, component soldering, PCB repair, circuit modifications, and general-purpose electronic work. With a 25W heating element and included 3mm spade tip, it provides a convenient solution for routine soldering applications. The soldering iron features a quick-heating element to reduce waiting time before operation. It is compatible with most standard soldering tips available on the market, making it suitable for both hobbyists and professional electronics repair work. This soldering iron is manufactured in India and may be supplied under SAMCON, Devaji, Noel, Alpine, or an equivalent manufacturer, depending on availability. ⭐ Key Features 25W power output Includes 3mm spade tip Quick-heating capability Compatible with most standard soldering tips Compact and practical design Suitable for PCB soldering and repair Durable construction for general electronics work Suitable for hobbyists, technicians, and educational use Made in India 📋 Technical Specifications Product Type: Electric Soldering Iron Model: Deluxe Economic Power Rating: 25W Tip Type: 3mm Spade Tip: 3mm Spade Tip, Pre-Installed Heating Type: Quick Heating Tip Compatibility: Most Standard Soldering Tips Manufacturer: SAMCON / Devaji / Noel / Alpine or Equivalent Country of Origin: India Application: Electronics Soldering and PCB Repair 🔧 Applications General Electronics Component Soldering PCB Assembly PCB Repair Circuit Modifications Electronics Hobby Projects DIY Electronics Educational Electronics Workshops Component Replacement Wire Soldering General Electrical & Electronic Repair 🛠️ How to Use Insert a suitable soldering tip and allow the iron to heat up. Apply solder to the heated joint and component connection to create a proper electrical and mechanical connection. After completing the work, place the soldering iron safely on a heat-resistant stand and allow it to cool before storage. 📦 Package Includes 1 × 25W Soldering Iron 1 × 3mm Spade Tip (Pre-Installed) ⚠️ Precautions The soldering tip becomes extremely hot during operation. Do not touch the heated tip or metal parts during use. Always place the soldering iron on a suitable heat-resistant stand when not in use. Use in a well-ventilated area. Wear appropriate eye protection during soldering. Keep away from children and flammable materials. Disconnect from the power supply after use. Allow the iron to cool completely before changing the tip. Lead-free solder may require higher temperatures and may not perform optimally with every 25W soldering application. ❓ Frequently Asked Questions Q: Can the 3mm spade tip be replaced?A: Yes. The supplied specification states that the soldering iron is compatible with most standard soldering tips, allowing tip replacement. Q: What safety precautions are required?A: Use the soldering iron in a well-ventilated area, use eye protection, and place it on a heat-resistant stand when not in use. Q: Is it compatible with lead-free solder?A: It can be used with lead-free solder, although lead-free soldering may require higher temperatures depending on the application.
Out of stockGold AP-55 TPA3116D2 2×50W Bluetooth Stereo Digital Amplifier Board with USB, TF Card, FM & Remote
[Amplifier Board] Gold AP-55 TPA3116D2 2×50W Bluetooth Stereo Digital Amplifier Board with USB, TF Card, FM & Remote The Gold AP-55 is a compact Class-D stereo digital audio amplifier board based on the TPA3116D2 amplifier IC, designed for DIY Bluetooth speakers, home audio systems, portable speakers, bookshelf speakers, multimedia systems, and custom audio projects. Available product listings consistently identify the AP-55 as a dual-channel 50W + 50W amplifier, with a DC input range around 8–24V or 12–24V depending on the listing/version. The AP-55 combines the power amplifier with a multimedia player supporting Bluetooth 5.0, USB, TF/SD card, FM radio and AUX input. The Bluetooth device name is reported as GD-82EM, while the FM tuner covers 87.5–108.0MHz. It also includes an infrared remote control and a digital display for convenient operation. The TPA3116D2 Class-D amplifier provides efficient stereo amplification, making the board suitable for building compact but powerful audio systems. One detailed listing specifies support for 4Ω–8Ω speakers, with the commonly advertised maximum output of 50W per channel. ⭐ Key Features Gold AP-55 amplifier module TPA3116D2 Class-D amplifier IC 50W + 50W dual-channel stereo output Supports 4Ω–8Ω speakers Bluetooth 5.0 wireless audio Bluetooth device name: GD-82EM Built-in USB music player Built-in TF / SD card player Built-in FM radio FM frequency range 87.5–108.0MHz 3.5mm AUX input Infrared remote control Digital display Supports MP3 / WMA / WAV Power-off memory function Remembers the previous song and volume Compact design for DIY speaker projects High-efficiency Class-D amplification 📋 Technical Specifications Product Type: Stereo Class-D Digital Amplifier Board Model: Gold AP-55 Amplifier IC: TPA3116D2 Amplifier Class: Class-D Number of Channels: 2 / Stereo Output Power: 50W + 50W Maximum Total Output: 100W Speaker Impedance: 4Ω–8Ω Input Voltage: DC 8–24V (some listings specify 12–24V; verify the exact board version before use) Bluetooth Version: 5.0 Bluetooth Name: GD-82EM Bluetooth Range: Up to approximately 10–15m under suitable conditions Audio Formats: MP3 / WMA / WAV USB Support: Yes TF/SD Card Support: Yes FM Radio: Yes FM Frequency: 87.5–108.0MHz AUX Input: 3.5mm / Wired Audio Input Remote Control: IR Remote Remote Range: Approximately 4–7m Display: Digital Display Power-Off Memory: Yes Memory Function: Last song and volume Audio Input Modes: Bluetooth / USB / TF Card / FM / AUX Output: Dual-Channel Stereo Efficiency: Greater than 90% according to one detailed listing SNR: Approximately 102dB according to one detailed listing Distortion: Below 0.1% at normal listening levels according to one detailed listing Board Size: Approximately 70 × 50 × 20mm with shell, according to one listing 🎵 Audio & Playback Functions The AP-55 can switch between Bluetooth, USB, TF/SD Card, FM Radio and AUX sources. When Bluetooth mode is selected, users can pair a phone or other compatible device with GD-82EM. USB and TF/SD cards can be used for local music playback, while AUX provides a wired audio input. 📻 FM Radio The built-in FM tuner supports the 87.5–108.0MHz broadcast band. FM stations can be searched and selected using the onboard controls or remote control. 🎛️ Controls & Remote The module provides controls for functions such as previous track, next track, volume up, volume down, play/pause, mode selection and FM station selection. The infrared remote provides additional wireless control of playback, volume, mode and other supported functions. 🔧 Applications DIY Bluetooth Speakers High-Power Bluetooth Speaker Projects Portable Speaker Systems Bookshelf Speaker Systems Home Audio Projects Multimedia Speaker Systems USB MP3 Speaker Systems TF/SD Card Music Players FM Radio Speaker Projects Car Audio Projects Custom Wooden Speaker Cabinets Desktop Audio Systems Electronics DIY Projects 🛠️ Installation Connect a suitable DC power supply within the specified voltage range and observe the correct polarity. Connect the left and right speaker outputs to compatible 4Ω–8Ω speakers. Select Bluetooth, USB, TF/SD, FM or AUX according to the desired audio source. For maximum advertised output, a suitable 24V high-current power supply is recommended by one vendor; at lower supply voltages, available output power will be lower. 📦 Package Includes 1 × Gold AP-55 TPA3116D2 2×50W Bluetooth Amplifier Board 1 × IR Remote Control 1 × Required Connecting Wires/Cables (package contents may vary by seller/version) ⚠️ Precautions Verify the exact input voltage requirement of your AP-55 version before powering it. Do not exceed 24V DC where the board specification limits input to 24V. Check power polarity carefully before connection. Use speakers with a compatible 4Ω–8Ω impedance. Do not short-circuit the speaker output terminals. Ensure adequate ventilation during high-power operation. Use a suitable high-current power supply for high-output operation. Do not connect the speaker outputs together or directly to ground. Keep the board away from moisture and conductive materials. Incorrect wiring or excessive voltage can permanently damage the amplifier IC.
45mm 1.75-Inch 4Ohms 3W Internal Magnet Speaker with Frame
[Speakers] 45mm Internal Magnet Speaker with Frame – 4Ω 3W 45×23×23mm The 45mm Internal Magnet Speaker with Frame (1.75-Inch) is a compact and efficient audio driver designed for DIY electronics, portable audio devices, multimedia systems, toys, alarms, intercoms, and embedded audio applications. Featuring an internal magnet structure and durable mounting frame, this speaker provides clear and stable sound output while maintaining a compact form factor. With a compact size of 45×23×23mm, 4Ω impedance, and 3W power rating, this speaker is suitable for small amplifier projects and electronic devices where space is limited. Its built-in frame allows convenient installation in custom enclosures, panels, and electronic products. ⭐ Key Features 45mm (1.75-Inch) speaker size 4Ω impedance 3W power rating Internal magnet design Durable mounting frame Compact 45×23×23mm construction Clear and stable sound output Lightweight and space-saving Suitable for low-power audio applications Easy to install in custom enclosures Ideal for DIY, repair and OEM applications 📋 Technical Specifications Product Type: Internal Magnet Speaker Speaker Size: 45mm (1.75 Inch) Dimensions: 45 × 23 × 23mm Impedance: 4Ω Power Rating: 3W Magnet Type: Internal Magnet Frame Type: With Mounting Frame Speaker Type: Dynamic Full Range Speaker Audio Type: Mini Full Range Speaker Mounting: Frame / Panel Mount Application: Compact Audio & Embedded Electronics 🔧 Applications DIY Speaker Projects Portable Audio Devices Bluetooth Speaker Projects Multimedia Speaker Systems Alarm Systems Toys and Sound Modules Intercom Systems Embedded Electronics Educational Electronics Kits Replacement Speaker Repairs Smart Gadgets OEM Product Manufacturing Mini Amplifier Projects 🛠️ Installation Mount the speaker securely inside the required enclosure or panel using its mounting frame. Connect it to a compatible amplifier with an output suitable for 4Ω speakers and a power rating appropriate for the 3W speaker. Proper mounting helps reduce unwanted vibration and improves overall sound performance. 📦 Package Includes 1 × 45mm Internal Magnet Speaker with Frame – 4Ω 3W ⚠️ Precautions Match the 4Ω impedance with the amplifier output. Do not exceed the 3W rated power. Do not apply direct DC voltage to the speaker. Ensure correct wiring polarity during installation. Avoid exposure to moisture and excessive dust. Mount securely to prevent vibration and unwanted noise. Do not apply physical pressure to the speaker cone or diaphragm. Use a compatible audio amplifier module for proper operation.
57mm (2.25-Inch) Internal Magnet Speaker 4Ohms 3W Full Range Audio Speaker
[Speakers] 57mm (2.25-Inch) Internal Magnet Speaker – 4Ω 3W Full Range Audio Speaker The 57mm (2.25-Inch) Internal Magnet Speaker is a compact and reliable full-range audio speaker designed for DIY electronics, multimedia devices, embedded sound systems, and portable audio applications. Featuring a 4Ω impedance and 3W power rating, this speaker delivers clear and balanced sound output while maintaining a slim and lightweight design. Its internal magnet structure provides a compact profile, making it ideal for applications where installation space is limited. The durable mounting frame allows easy integration into speaker enclosures, control panels, intercom systems, audio modules, and custom electronic projects. Designed for consistent audio performance, this speaker is suitable for voice playback, music, alerts, and general audio output in both portable and embedded electronic devices. ⭐ Key Features 57mm (2.25-Inch) compact speaker 4Ω impedance 3W power rating Internal magnet design Full-range audio reproduction Built-in mounting frame Clear and balanced sound output Compact and lightweight construction Easy installation in custom enclosures Suitable for portable and embedded audio applications Ideal for DIY electronics and speaker projects 📋 Technical Specifications Product Type: Internal Magnet Speaker Speaker Size: 57mm (2.25 Inch) Impedance: 4Ω Power Rating: 3W Speaker Type: Full Range Magnet Type: Internal Magnet Frame Type: With Mounting Frame Mounting: Frame / Panel Mount Application: Embedded Audio Systems 🔧 Applications DIY Electronics Projects Audio Modules & Music Players Intercom and Communication Systems Toys and Educational Devices Portable Audio Systems Alarm and Notification Devices Embedded Audio Applications Mini Speaker Enclosures Multimedia Devices Robotics and Automation Projects ⚠️ Precautions Do not exceed the 3W rated power. Use an amplifier compatible with a 4Ω speaker load. Ensure proper wiring polarity during installation. Avoid exposure to moisture and dust. Mount securely to reduce vibration noise. Do not apply direct pressure on the speaker cone. 📦 Package Includes 1 × 57mm (2.25-Inch) 4Ω 3W Internal Magnet Full Range Speaker
45mm (1.75-Inch) Internal Magnet Speaker 2 Ohms 10W Full Range Audio Speaker
[Speakers] 45mm (1.75-Inch) Internal Magnet Speaker – 2Ω 10W Full Range Audio Speaker The 45mm (1.75-Inch) Internal Magnet Speaker is a compact and powerful audio driver designed for DIY electronics, portable speakers, multimedia devices, toys, embedded audio systems, and custom speaker enclosures. Featuring a 2Ω impedance and 10W power rating, this speaker provides strong audio output when paired with a compatible amplifier. Its internal magnet design provides a compact profile while maintaining efficient magnetic performance. The built-in mounting frame makes installation easy in custom enclosures and electronic devices. With its 2Ω low-impedance configuration, this speaker is suitable for compatible Class-D amplifier modules where higher output power is required from a compact speaker driver. ⭐ Key Features 45mm (1.75-Inch) compact speaker 2Ω impedance 10W power rating Internal magnet design Full-range audio reproduction Compact and lightweight construction Built-in mounting frame Clear and powerful sound output Easy to install in custom enclosures Suitable for portable and embedded audio applications Ideal for DIY speaker projects 📋 Technical Specifications Product Type: Internal Magnet Speaker Speaker Size: 45mm (1.75 Inch) Impedance: 2Ω Power Rating: 10W Speaker Type: Full Range Magnet Type: Internal Magnet Frame Type: Mounting Frame Mounting: Frame / Panel Mount Application: Embedded & Portable Audio 🔧 Applications DIY Bluetooth Speaker Projects Portable Speaker Systems Mini Audio Amplifiers Multimedia Devices Toys and Educational Kits Intercom Systems Alarm and Notification Systems Embedded Audio Devices Custom Speaker Enclosures Robotics Projects Electronic Projects ⚠️ Precautions Use an amplifier that supports a 2Ω load. Do not exceed the 10W rated power. Check amplifier output impedance before connecting. Observe correct speaker polarity during installation. Avoid excessive mechanical pressure on the speaker cone. Keep away from moisture and excessive dust. Mount securely to minimize unwanted vibration and distortion. 📦 Package Includes 1 × 45mm (1.75-Inch) 2Ω 10W Internal Magnet Full Range Speaker
2.25 Inch 4 Ohm 10 Watt Full Range Speaker with Neodymium Magnet
[Speakers] 2.25-Inch Speaker Driver • 4 Ohm Impedance • 10W Power Rating • Neodymium Magnet • Compact Full Range Audio Speaker The 2.25 Inch 4 Ohm 10 Watt Full Range Speaker with Neodymium Magnet is a compact and high-performance speaker driver designed for portable audio systems, DIY speaker projects, multimedia devices, embedded electronics, and custom sound enclosures. Featuring a powerful neodymium magnet, this speaker delivers clear vocals, balanced midrange, and improved bass response while maintaining a lightweight and compact design. With a 4 ohm impedance and 10 watt power rating, the speaker is suitable for use with small audio amplifiers, Bluetooth amplifier modules, DIY portable speakers, mini sound systems, toys, alarm systems, educational kits, and embedded electronic devices. The full-range design allows it to reproduce a wide spectrum of audio frequencies without requiring additional tweeters for many compact applications. Its durable construction and lightweight neodymium magnet assembly make it ideal for applications where both performance and space efficiency are important. ⭐ Features Compact 2.25-inch full range speaker Powerful neodymium magnet 4 ohm impedance 10 watt power rating Clear and balanced sound output Enhanced vocal clarity and midrange performance Lightweight and compact construction Easy to mount in custom enclosures Suitable for portable and embedded audio systems Ideal for DIY electronics and audio projects 📋 Technical Specifications Product Type: Full Range Speaker Driver Speaker Size: 2.25 Inch Impedance: 4 Ohm Power Rating: 10 Watt Magnet Type: Neodymium Speaker Type: Full Range Mounting Type: Enclosure / Panel Mount Application Type: Audio Output Frame Material: Metal Cone Material: Paper Composite Color: Black 🔧 Applications Suitable for: Portable Speaker Systems Bluetooth Speakers DIY Audio Projects Mini Sound Systems Multimedia Devices Toys and Educational Kits Alarm and Notification Systems Embedded Electronic Devices Mini Amplifiers Sound Modules Intercom Systems Custom Speaker Enclosures Robotics and Electronics Projects 📦 Package Includes 1 × 2.25 Inch 4 Ohm 10 Watt Full Range Speaker with Neodymium Magnet ⚠️ Precautions Do not exceed the 10W rated power. Use an amplifier compatible with 4 ohm speakers. Avoid exposure to moisture, water, and excessive dust. Mount the speaker securely to minimize unwanted vibration. Do not apply direct pressure to the speaker cone or surround.
Passive Radiator Bass Diaphragm Rubber Speaker Vibration Plate for DIY Speakers
[Passive Radiator] 🔊 Oval, Square & Round Passive Radiator Bass Diaphragm Rubber Speaker Vibration Plate for DIY Speakers Deep Bass Enhancement • Passive Design • No External Power Required • Ideal for DIY Speaker Projects The Rubber Passive Radiator Bass Diaphragm is a high-quality auxiliary bass vibration plate designed to significantly improve the low-frequency response of speaker systems. Available in Oval, Square, and Round shapes with multiple sizes, this passive radiator enhances bass performance without requiring additional power or amplifier channels. Unlike conventional speakers, a passive radiator does not contain a voice coil or magnet. Instead, it utilizes the air pressure generated by the active speaker driver to vibrate, producing deeper, richer bass while minimizing distortion and unwanted cabinet resonance. Manufactured using premium rubber and durable ABS materials, these passive radiators provide excellent flexibility, durability, and long service life. They are ideal for upgrading Bluetooth speakers, portable speakers, multimedia speakers, subwoofers, soundbars, and custom DIY audio projects. Whether you're repairing an existing speaker or building a custom enclosure, these passive bass diaphragms help deliver powerful low-frequency performance while maintaining compact enclosure sizes. ⭐ Features Premium quality rubber passive radiator Available in Oval, Square & Round shapes Produces deep and powerful bass response No power supply or wiring required Improves low-frequency performance Reduces speaker distortion Durable rubber suspension Lightweight and compact design Easy to install Ideal for DIY speaker upgrades and repairs 📋 Technical Specifications Product Type: Passive Radiator Bass Diaphragm Material: Rubber + ABS Plastic+Metal Shape: Oval / Square / Round (Depending on Selected Variant) Available Sizes: Multiple Sizes (2040 to 6090 Series) Operation: Passive (No Voice Coil or Magnet) Power Requirement: None Installation Type: Speaker Cabinet Mount Application: Low Frequency Bass Enhancement Color: Black 🔧 Applications Suitable for: Bluetooth Speakers Portable Speakers DIY Speaker Projects Multimedia Speakers Home Audio Systems Bookshelf Speakers Soundbars Subwoofers Wireless Speakers Audio System Repairs Custom Speaker Cabinets DIY Audio Enclosures 📦 Package Includes 1 × Passive Radiator Bass Diaphragm (Size & Shape as Selected) ⚠️ Note This is a passive radiator only and does not contain a voice coil, magnet, or electrical terminals. Product images are for reference only. The actual product may vary slightly in appearance depending on the selected size, shape, or manufacturing batch.
Winway 18650 Lithium-Ion Rechargeable Battery 3.7V 2600mAh 9.62Wh
[Lithium Battery Cell] The Winway 18650 Lithium-Ion Rechargeable Battery is a high-performance cylindrical Li-ion cell designed to deliver reliable and long-lasting power for a wide range of electronic devices. With a nominal voltage of 3.7V, 2600mAh capacity, and 9.62Wh energy rating, it provides consistent power output for both high-drain and low-drain applications. Manufactured using premium lithium-ion cell technology, this battery offers excellent energy density, stable discharge performance, and long cycle life. Its standard 18650 form factor makes it compatible with most battery holders, chargers, and devices designed for 18650 cells. The Winway 2600mAh battery is widely used in rechargeable flashlights, emergency lights, battery packs, power banks, Bluetooth speakers, portable fans, solar lighting, DIY electronics, robotics, and various battery-operated devices. Designed for durability and dependable performance, this battery delivers excellent backup time while maintaining stable voltage throughout the discharge cycle. ⭐ Features High-quality 18650 Lithium-Ion rechargeable battery 2600mAh high-capacity cell Nominal voltage of 3.7V Energy rating of 9.62Wh Stable discharge performance High energy density Long charge and discharge cycle life Lightweight and compact cylindrical design Suitable for battery pack assembly Compatible with standard 18650 battery holders and chargers 📋 Technical Specifications Product Type: Lithium-Ion Rechargeable Battery Brand: Winway Battery Model: 18650 Nominal Voltage: 3.7V Nominal Capacity: 2600mAh Energy: 9.62Wh Battery Chemistry: Lithium-Ion (Li-ion) Cell Type: Rechargeable Form Factor: Cylindrical 18650 Diameter: Approx. 18mm Length: Approx. 65mm Weight: Approx. 45g Color: Green Rechargeable: Yes Made In: India Pack Quantity: 1 Piece 🔧 Applications Suitable for: Rechargeable Flashlights Emergency Lights Power Banks Bluetooth Speakers Portable Fans Solar Lighting Systems DIY Battery Packs Robotics Projects Arduino Projects ESP32 Projects Electronic Toys Portable Electronic Devices Medical Equipment (Compatible Models) Industrial Electronic Equipment 📦 Package Includes 1 × Winway 18650 Lithium-Ion Rechargeable Battery 3.7V 2600mAh ⚠️ Safety Instructions Use only a compatible Li-ion battery charger. Do not short-circuit, puncture, crush, or disassemble the battery. Do not expose the battery to fire, excessive heat, or water. Observe correct polarity during installation. Do not overcharge or over-discharge the battery. Store in a cool, dry place away from direct sunlight.
Digital Multimeter Test Leads with Ultra Sharp Needle Probe & Banana Plug CAT III 1000V 10A for SMD
[Hook up wire] The Digital Multimeter Test Lead Kit is a high-quality replacement probe set designed for accurate electrical measurements and electronic troubleshooting. Featuring ultra-sharp stainless steel needle probes, these leads allow easy access to miniature IC pins, SMD components, PCB tracks, LEDs, and other small electronic devices without causing damage. The probes are fitted with standard 4mm banana plug connectors, making them compatible with most digital multimeters, clamp meters, bench meters, and testing equipment from brands such as Fluke, Extech, Mastech, Uni-T, Victor, Sanwa, and many more. Constructed using high-quality PVC insulated cables and durable metal probes, the leads provide excellent flexibility, low resistance, and long service life. The CAT III safety rating ensures safe operation up to 1000V with a maximum current rating of 10A, making them suitable for both electronics and electrical testing. The built-in protective finger guards improve operator safety, while the flexible cables remain tangle-free during continuous testing. These probes are ideal for laboratory work, electronics repair, field service, educational laboratories, industrial maintenance, and DIY electronics projects. 🔹 Key Features Ultra-sharp stainless steel needle probes Standard 4mm banana plug connectors CAT III 1000V safety rating Maximum current rating: 10A Flexible PVC insulated cables Accurate low-resistance measurements Comfortable insulated probe handles Durable construction for long service life Compatible with most digital multimeters Ideal for PCB, SMD, IC and electrical testing 🔹 Technical Specifications Product Type: Digital Multimeter Test Leads Probe Type: Ultra Sharp Needle Probe Probe Colors: Red & Black Connector Type: 4mm Banana Plug Cable Material: PVC Insulated Probe Material: Stainless Steel / Metal Cable Length: Approx. 83cm Total Length: Approx. 103cm Maximum Current: 10A Maximum Voltage: 1000V Safety Rating: CAT III 1000V Measurement Type: Voltage, Current, Resistance, Continuity Compatibility: Most Digital Multimeters 🔹 Compatible With Fluke Multimeters Extech Multimeters Mastech Multimeters UNI-T Multimeters Victor Multimeters Sanwa Multimeters DT830 Series DT9205 Series Most multimeters with 4mm banana sockets 🔹 Applications Suitable for: Digital multimeters PCB testing SMD component testing IC pin testing LED testing Continuity testing Voltage measurement Current measurement Electronics repair Laboratory testing Industrial maintenance DIY electronics projects 🔹 Package Includes 1 × Red Multimeter Test Lead 1 × Black Multimeter Test Lead
10-in-1 USB & Type-C Digital Tester – IPS Voltmeter, Ammeter, Impedance & Capacity Meter
[Ammeter and Voltmeter] The 10-in-1 USB & Type-C Digital Power Tester is a multifunction USB measurement instrument developed for engineers, technicians, hobbyists, and electronics enthusiasts. It accurately monitors USB charging performance while providing comprehensive electrical measurements for USB-A and USB Type-C devices. Equipped with a bright IPS true-color LCD display, the tester simultaneously displays ten important charging parameters including Voltage, Current, Power, Capacity (mAh), Energy (mWh), Cable Resistance, Temperature, Charging Time, D+ Voltage, and D− Voltage. The tester features both USB-A and USB Type-C input/output interfaces, allowing compatibility with traditional USB chargers as well as modern USB-C Power Delivery devices. It supports testing of fast chargers, mobile phones, tablets, laptops, power banks, USB cables, and various USB-powered electronics. With support for measurements up to 150W and 5A, this tester is suitable for high-power USB-C PD chargers while consuming less than 20mA of operating current. Built-in control buttons allow users to switch display modes, perform fast-charge diagnostics, and manage measurement functions easily. Its compact design makes it an excellent tool for electronics repair, charger verification, cable testing, battery capacity measurement, laboratory work, and DIY electronics projects. 🔹 Key Features Dual Interface: USB-A & USB Type-C Input/Output Supports USB PD and Fast Charging IPS Full Color LCD Display Measures Voltage, Current and Power Capacity (mAh) & Energy (mWh) Measurement Cable Resistance (Impedance) Measurement Internal Temperature Monitoring USB D+ / D− Voltage Detection Charging Timer Function High Accuracy Measurement Low Self Power Consumption Compact Portable Design Easy Operation with Dedicated Function Buttons 🔹 Technical Specifications Product Type: USB Digital Power Tester Display: IPS True Color LCD Input Interface: USB-A / USB Type-C Output Interface: USB-A / USB Type-C Maximum Power Measurement: 150W Maximum Current: 5A Voltage Measurement: USB Standard & USB-C PD Power Measurement Range: 0–150W Current Measurement: Up to 5A Capacity Measurement: mAh Energy Measurement: mWh Impedance Measurement Range: 1–999.9Ω Temperature Measurement: 0°C to 80°C USB D+ Voltage Range: 0–2.99V USB D− Voltage Range: 0–2.99V Timer Range: 999 Hours 59 Minutes Refresh Rate: Approximately 500ms Self Power Consumption: <20mA Operating Buttons: Mode / Power Dimensions: 76.9 × 38 × 11 mm 🔹 Applications This USB tester is suitable for: USB charger testing USB-C PD charger testing Power bank capacity testing Mobile charger verification Fast charging protocol diagnostics USB cable resistance testing Laptop USB-C charger testing Electronics repair DIY electronics projects Laboratory measurements Battery charging analysis Quality inspection of USB power supplies 🔹 Package Includes 1 × 10-in-1 USB & Type-C Digital Power Tester 🔹 Frequently Asked Questions (FAQ) What does "10-in-1" mean? It measures ten important parameters: Voltage, Current, Power, Capacity, Energy, Impedance, Temperature, Charging Time, D+ Voltage, and D− Voltage. Does it support both USB-A and USB Type-C? Yes. It features both USB-A and USB Type-C input and output interfaces. What is the maximum power it can measure? Up to 150W. What is the maximum current supported? Up to 5A. Can it test USB-C laptop chargers? Yes. It supports high-power USB-C PD chargers up to 150W. Can it measure charging cable quality? Yes. It measures cable impedance from 1Ω to 999.9Ω. Does it display temperature? Yes. It includes an internal temperature sensor with a range of 0°C to 80°C. Does it require batteries? No. It is powered directly from the connected USB source. Can it measure power bank capacity? Yes. It records charging capacity in mAh and mWh. Does it support fast charging protocols? Yes. It can monitor USB D+ and D− voltages, helping identify fast charging protocol handshakes.