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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Gigabyte GeForce RTX 5050 Windforce OC 8GB GDDR6 Graphics Card
[Graphics Card] Gigabyte GeForce RTX 5050 Windforce OC 8GB GDDR6 Graphics Card Next-generation GeForce RTX 50 series GPU featuring cutting-edge Blackwell architecture, dedicated ray tracing cores, tensor cores, and DLSS 4 with multi-frame neural reconstruction. The WINDFORCE cooling system features two unique blade fans, alternate spinning, composite copper heat pipes, and 3D active fan functionality. ⭐ Key Features - NVIDIA Blackwell GPU Architecture - 8GB GDDR6 128-bit high-bandwidth memory - WINDFORCE cooling system with alternate spinning fans - Screen cooling extended heatsink allows airflow to pass through - Protection back plate provides structural rigidity and aesthetic polish - Factory Overclocked core clock out of the box 📋 Technical Specifications - Graphic Processor: NVIDIA GeForce RTX 5050 - Memory: 8GB GDDR6 - Memory Bus: 128-bit - PCI Express: PCIe 5.0 x8 / x16 compliant - Outputs: 2x DisplayPort 2.1, 2x HDMI 2.1b - Max Resolution: 7680 x 4320 @ 120Hz - Power Connectors: 1x 8-pin PCIe - Recommended PSU: 500W 🎯 Applications - High-FPS 1080p & 1440p gaming with full Ray Tracing & DLSS - AI model inference, Stable Diffusion, and LLM workstation tasks - Video editing and color grading in DaVinci Resolve & Premiere Pro 📦 Package Includes - 1 x Gigabyte RTX 5050 Windforce OC 8GB Graphics Card - 1 x Quick Start Manual
PIR Motion Detector Module
Outputs high digital pulse when motion is detected.
LDR (Light Dependent Resistor)
Resistance varies with light: ~1–10kΩ bright, 100kΩ–1MΩ dark. Use in voltage divider with 10kΩ. Output: analog voltage to ADC.
Touch Sensor TTP224 (4 channel)
TTP224 capacitive touch controller: 4 touch inputs → 4 digital outputs. 2.4–5.5V. Sensitivity adjustable.
Nextron Nforce AMD Radeon RX 580 8GB GDDR5 Graphics Card
[Graphics Card] Nextron Nforce AMD Radeon RX 580 8GB GDDR5 Dual Fan Gaming Graphics Card The Nextron Nforce RX 580 8GB delivers responsive, fluid 1080p gaming performance powered by AMD Polaris architecture. Equipped with 8GB of high-speed GDDR5 memory and a dual-fan thermal cooling solution with copper heat pipes. ⭐ Key Features - High-capacity 8GB GDDR5 video memory with 256-bit bus width - Dual 90mm cooling fans with multi-rib heat dissipation - Dual slot aerodynamic shroud design - AMD FreeSync technology support for tear-free gaming - DirectX 12 and Vulkan API hardware acceleration - Multiple display connectivity with HDMI, DisplayPort, and DVI-D 📋 Technical Specifications - GPU Engine: AMD Radeon RX 580 (Polaris 20) - Stream Processors: 2048 Cores - Core Clock: Up to 1284 MHz - Memory Clock: 7000 MHz effective - Memory Interface: 256-bit GDDR5 - Bus Type: PCI-Express 3.0 x16 - Video Outputs: 1x HDMI 2.0b, 3x DisplayPort 1.4, 1x Dual-Link DVI-D - Thermal Design Power (TDP): 150W - Power Connector: 1x 8-Pin PCIe - Recommended Power Supply: 450W minimum 🎯 Applications - Budget 1080p gaming (CS2, GTA V, Valorant, Apex Legends, Fortnite) - Multi-monitor workstation setups for trading and productivity - Affordable 3D rendering and graphic design rigs 📦 Package Includes - 1 x Nextron Nforce RX 580 8GB GDDR5 Graphics Card - 1 x Driver CD & Quick Installation Guide
Gigabyte GeForce RTX 5050 Windforce OC V2 8GB GDDR6 Graphics Card
[Graphics Card] Gigabyte GeForce RTX 5050 Windforce OC V2 8GB GDDR6 Graphics Card Refined V2 iteration featuring optimized PCB routing, upgraded thermal pads, and enhanced WINDFORCE aerodynamic fan blade contours for quieter high-load operation. ⭐ Key Features - Blackwell architecture with 4th Gen Tensor Cores - Upgraded V2 thermal heatsink fin array - Alternate spinning dual fans eliminate turbulence - Direct-touch composite copper heat pipes - Ultra Durable certified chokes and solid capacitors 📋 Technical Specifications - Model: GV-N5050WF2OCV2-8GD - Memory: 8GB GDDR6 - Bus Standard: PCIe 5.0 - Outputs: 3x DisplayPort 2.1a, 1x HDMI 2.1 - Form Factor: 2-Slot ATX 📦 Package Includes - 1 x Gigabyte RTX 5050 Windforce OC V2 8GB Graphics Card - 1 x User Guide
MSI GeForce RTX 5050 SHADOW 2X OC 8GB GDDR6 Graphics Card
[Graphics Card] MSI GeForce RTX 5050 SHADOW 2X OC 8GB GDDR6 Graphics Card Stealth black industrial aesthetics built for no-nonsense gaming builds. Zero RGB distractions, maximum copper thermal density, and silent dual-ball-bearing fans. ⭐ Key Features - Matte black stealth aesthetic - Dual high-pressure cooling fans with Zero Frozr fan stop - Reinforced structural backplate - Hardened PCB with 2oz copper inner layers 📋 Technical Specifications - Memory: 8GB GDDR6 128-bit - Recommended PSU: 500W - Outputs: 3x DP 2.1, 1x HDMI 2.1 📦 Package Includes - 1 x MSI RTX 5050 SHADOW 2X OC 8GB Graphics Card
PNY GeForce RTX 5050 VERTO Dual Fan 8GB GDDR6 Graphics Card
[Graphics Card] PNY GeForce RTX 5050 VERTO Dual Fan 8GB GDDR6 Graphics Card Engineered with premium components, dual 90mm fans, and high-efficiency copper heatpipes. Delivers high frames in modern titles with full ray tracing and neural rendering. ⭐ Key Features - PNY VERTO Dual-Fan Thermal Solution - Low power draw with high performance per watt - Durable aluminum protective backplate - Compact form-factor fits standard chassis 📋 Technical Specifications - Memory: 8GB GDDR6 128-bit - TDP: 115W - Outputs: 3x DisplayPort 2.1, 1x HDMI 2.1 📦 Package Includes - 1 x PNY RTX 5050 VERTO 8GB Graphics Card
Thermaltake Toughpower GF1 850W 80 Plus Gold Fully Modular SMPS
[Power Supply] Thermaltake Toughpower GF1 850W 80 PLUS Gold Fully Modular Power Supply Features 100% high quality Japanese 105°C capacitors, 140mm hydraulic bearing fan with Smart Zero Fan technology, and ultra-strict voltage regulation (< ±2%). ⭐ Key Features - 80 PLUS Gold certified up to 90% efficiency - 100% Japanese 105°C capacitors - Ultra Quiet 140mm Hydraulic Bearing Fan with Smart Zero Fan switch - Ripple noise < 30mV across all rails - 10-Year Thermaltake Warranty 📋 Technical Specifications - Model: PS-TPD-0850FNFAGD-H - Max Output Capacity: 850W - Modular: Fully Modular flat black cables 📦 Package Includes - 1 x Thermaltake Toughpower GF1 850W Power Supply - 1 x Cable Bag with full modular cabling
Thermaltake Toughpower TF1 1650W 80 Plus Titanium Modular Power Supply
[Power Supply] Thermaltake Toughpower TF1 1650W 80 PLUS Titanium High-End Workstation SMPS Monstrous 1650W power supply engineered for extreme overclocking, quad-GPU AI workstation deep learning, and multi-CPU rendering servers. 80 PLUS Titanium certified with 94%+ efficiency. ⭐ Key Features - 1650W continuous output with Titanium 94% efficiency - Turbo Fan button boosts fan to maximum speed for extreme cooling - Low ripple noise and strict ±2% voltage regulation - 100% Japanese solid-state capacitors - Side ventilation honeycomb grille 📋 Technical Specifications - Max Output: 1650 Watts (Peak 1900W) - Connectors: 16x PCIe 8-pin, 2x EPS 8-pin, 16x SATA - Dimensions: 200 x 150 x 86 mm 📦 Package Includes - 1 x Thermaltake Toughpower TF1 1650W Titanium PSU - 1 x Heavy gauge C19 high-current power cord
Thermaltake Smart BX1 750W 80 Plus Bronze Power Supply
[Power Supply] Thermaltake Smart BX1 750W 80 PLUS Bronze Non-Modular SMPS Reliable mainstream 750W power supply featuring 80 PLUS Bronze efficiency, high-amperage single +12V rail, and a silent 120mm hydraulic bearing fan. ⭐ Key Features - 80 PLUS Bronze certified up to 88% efficiency - 120mm hydraulic bearing fan with low RPM acoustic profile - Premium Japanese main capacitor - Stable single +12V rail output 📋 Technical Specifications - Wattage: 750W - Form Factor: ATX 12V 2.4 - Active PFC with full OVP, OPP, SCP protection 📦 Package Includes - 1 x Thermaltake Smart BX1 750W SMPS - 1 x Power Cable
Out of stockPower Bank 20000 mAh 65W (Laptop)
Laptop-capable 20000 mAh, USB-C PD 65W, dual output, LED display.
Out of stockMini UPS for Router (12V/9V Output)
Mini DC UPS, 8800 mAh internal, 12V/9V/5V outputs, automatic switchover.
Out of stockDisplayPort 1.4 MST Hub (1 → 3 Monitors)
MST hub splits one DP 1.4 output into 3× 4K@60Hz monitors.
Out of stockHDMI Splitter 1×4 4K@60Hz
1 input → 4 identical 4K@60Hz HDMI outputs, HDCP-compliant.
Out of stockHDMI Switcher 3×1 4K@60Hz with Remote
3 inputs → 1 output HDMI switcher, IR remote, auto + manual modes.
2S 4A Type-C Lithium Battery Charging Module – 8.4V Step-Up Boost Charger for 18650 Lipo
[Step UP Buck Converter] 2S 4A Type-C Lithium Battery Charging Module – 8.4V Step-Up Boost Charger for 18650 The 2S 4A Type-C Lithium Battery Charging Module is a compact step-up charging board designed for charging 2-cell series (2S) 18650 Li-ion/Li-Po battery packs. It accepts a 3–6V DC input through USB Type-C and boosts the voltage to 8.4V, the required full-charge voltage for a 2S lithium battery pack. The 4A specification refers to the maximum input current version. According to available product specifications, the corresponding charging current is approximately 2.2A, rather than 4A. ⭐ Key Features Designed for 2S lithium-ion/Li-Po battery packs Suitable for 2 × 18650 cells connected in series USB Type-C input 3–6V DC input Recommended input: 3.7V / 5V Step-up/boost charging circuit 8.4V charging voltage 4A maximum input-current version Approximately 2.2A charging current Automatic recharge function Battery charging protection features Compact PCB design LED charging/status indication Suitable for DIY battery and portable-power projects 📋 Technical Specifications Product Type: 2S Lithium Battery Step-Up Charging Module Battery Configuration: 2S – 2 cells in series Compatible Battery: 3.6V/3.7V Li-ion / Li-Po Nominal Battery Pack Voltage: 7.4V Full-Charge Voltage: 8.4V Input Voltage: DC 3–6V Recommended Input: DC 3.7V / 5V Maximum Input Current: 4A Charging Current: Approximately 2.2A Charging Interface: USB Type-C Charging Mode: Constant-current / constant-voltage Board Size: Approximately 39 × 18 × 6.3mm Operating Temperature: -40°C to +85°C LED Indicators: Charging / fully charged or constant-voltage status 🔋 Charging Performance For the 2S 4A version: USB Type-C 5V → Boost Charging Module → 8.4V → 2S Battery Pack The module draws up to approximately 4A from the input, while the specified charging current is approximately 2.2A. This distinction is important when selecting the USB power adapter. 🔧 Applications 2S 18650 battery packs 7.4V Li-ion battery packs 2S Li-Po battery packs DIY power banks Portable electronics Bluetooth speaker battery systems Robotics projects Solar charging applications Electronic prototyping Portable audio equipment Electric fan projects Type-C rechargeable equipment Custom battery charging systems 🛠️ How It Works The module uses a boost/step-up charging circuit to convert the lower USB Type-C input voltage into the 8.4V charging voltage required for a 2S lithium battery pack. Example: 5V Type-C Input → Step-Up Circuit → 8.4V Charging Output → 2S 18650 Battery A 2S battery pack consists of two lithium cells connected in series: 3.7V + 3.7V = 7.4V nominal4.2V + 4.2V = 8.4V fully charged 💡 LED Indicators The module uses status indicators to show the charging condition: CR: Charging OK: Fully charged / constant-voltage stage ⚠️ Important Notes This module is intended for 2S battery packs only. Do not connect a single 18650 cell directly to the 8.4V charging output. The two cells should be properly matched and in good condition. Do not exceed the 6V maximum input voltage. A suitable Type-C power source is required to supply the necessary input current. The 4A rating is the input-current rating, not the battery charging current. The specified charging current for this 2S 4A version is approximately 2.2A. This charging module should not automatically be considered a replacement for a dedicated 2S BMS/protection board. Use appropriate battery protection where required. Check the PCB polarity and connection markings before connecting the battery. Do not short-circuit the input or output. Use properly matched lithium cells for safe and reliable charging. Keep the module adequately ventilated during higher-current operation. 📦 Package Includes 1 × 2S 4A Type-C Step-Up Boost Lithium Battery Charging Module – 8.4V
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
48mm Square Internal Magnet Speaker – 4Ohms 5W
[Speakers] 48mm Square Internal Magnet Speaker – 4Ω 5W The 48mm Square Internal Magnet Speaker is a compact full-range audio driver designed for clear and efficient sound reproduction in space-constrained applications. With a 4Ω impedance and 5W power rating, this speaker is suitable for Bluetooth speakers, portable audio systems, DIY speaker projects and embedded electronic devices. Its square frame allows convenient mounting inside compact enclosures and panels. ⭐ Key Features Compact square speaker design 4Ω impedance 5W power rating Internal magnet construction Full-range audio output Compact size for space-limited applications Easy to install inside speaker enclosures Suitable for DIY and commercial audio projects Lightweight and practical design 📋 Technical Specifications Speaker Type: Internal Magnet Speaker Shape: Square Speaker Size: 48mm class Model: 4Ω 5W Impedance: 4Ω Power Rating: 5W Magnet Type: Internal Magnet Audio Type: Full-range Mounting Type: Panel / Enclosure Mount Dimensions: 47 × 29 × 23mm Application: Compact audio systems, DIY electronics and portable speakers 🔧 Applications Bluetooth speaker systems Portable speakers DIY speaker projects Compact audio enclosures Embedded audio systems Intercom systems Alert and notification devices Educational electronics projects Consumer electronic devices Custom audio projects 🛠️ Installation Connect the speaker to a compatible amplifier with a 4Ω output. Ensure the amplifier's output power is suitable for the speaker's 5W rating. Mount the speaker securely inside the enclosure to reduce unwanted vibration. Observe correct speaker polarity when connecting multiple speakers. 📦 Package Includes 1 × 48mm Square Internal Magnet Speaker Impedance: 4Ω Power: 5W ⚠️ Precautions Do not exceed the 5W rated power for prolonged operation. Use a compatible 4Ω amplifier. Avoid short-circuiting the speaker terminals. Keep away from moisture, excessive heat and physical damage. Ensure proper mounting to minimize vibration and unwanted noise. Actual sound quality depends on the amplifier, enclosure and application.
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.
Black Plastic 3×18650 Battery Holder or Case Series Connection With Wire
[Lithium Battery Holder] Black Plastic 3×18650 Battery Holder – Series Connection The Black Plastic 3×18650 Battery Holder is designed to securely hold three 18650 lithium-ion battery cells in series configuration. It provides a convenient and organized way to mount 18650 cells for DIY battery packs, portable electronics, power supplies, LED projects, and other battery-powered applications. The holder is made from durable plastic and features mounting holes for secure installation using suitable screws. It is supplied with red and black connecting wires for convenient connection to an external circuit. ⭐ Key Features Designed for 3 × 18650 battery cells Series connection Black plastic construction Without cover Secure battery positioning Easy installation Built-in mounting holes Red and black connecting wires Suitable for DIY battery pack projects Compact and lightweight design 📋 Technical Specifications Product Type: 18650 Battery Holder Battery Capacity: 3 Cells Battery Type: 18650 Li-Ion Cell Configuration: 3S / Series Connection Nominal Output Voltage: Approximately 11.1V with 3.7V cells Fully Charged Voltage: Approximately 12.6V Material: Plastic Color: Black Cover: Without Cover Connection Wires: Red and Black Mounting: Screw Mount Mounting Holes: Yes Recommended Screw Size: Approximately 3mm Application: Battery Pack / Portable Electronics 🔌 Connection The three 18650 cells are connected in series, increasing the total voltage while maintaining the capacity of a single cell. With standard 3.7V nominal cells, the pack is approximately 11.1V nominal and 12.6V when fully charged. The red wire is the positive connection and the black wire is the negative connection. 🔧 Applications DIY 18650 Battery Packs 3S Lithium-Ion Battery Packs Portable Electronics LED Lighting Projects DIY UPS Projects Arduino Projects ESP8266 / ESP32 Projects Rechargeable Electronics Battery-Powered Devices Electronics Prototyping 📦 Package Includes 1 × 3×18650 Battery Holder / Case – Series Connection, Without Cover ⚠️ Precautions Use only compatible 18650 Li-Ion cells. Use three cells with matching capacity, chemistry, age, and charge condition. Use a suitable 3S BMS/protection and charging circuit. Do not mix damaged or mismatched cells. Check polarity carefully before installation. Do not short-circuit the battery terminals. Do not use damaged, swollen, or leaking cells. Ensure the holder and wiring are securely installed.
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.