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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Only 1 leftIOT Health Kit
MCU: ESP32 (good ADC/BLE). Sensors: pulse sensor/PPG module, body temp sensor, SpO2 module optional. Data logging: serial/cloud. Power: 5V USB. Educational use, non-clinical.
AMD Ryzen 5 5600
Six cores, 12 threads. 3.5 / 4.4 GHz on AM4. The cheapest path to good 1080p / 1440p gaming if you already own DDR4.
Seagate BarraCuda 2 TB HDD
2 TB at the price of a small SSD. SATA, 256 MB cache. Good archive / Steam library drive.
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
Blivex LFP32700 3.2V 6Ah LiFePO₄ Rechargeable Battery Cell
[LiFePO4 Battery Cell] 🔋 Blivex LFP32700 3.2V 6Ah LiFePO₄ Rechargeable Battery Cell High Capacity • Long Cycle Life • High Discharge Performance • Ideal for Energy Storage & Electric Vehicles The Blivex LFP32700 3.2V 6Ah LiFePO₄ Rechargeable Cell is a premium cylindrical lithium iron phosphate (LiFePO₄) battery designed for high-performance energy storage and power applications. Featuring a nominal voltage of 3.2V, 6Ah capacity, and up to 18A continuous discharge current, this cell delivers stable output voltage, excellent safety, and long service life. The specification identifies the product as a LFP32700-6.0Ah LiFePO₄ cylindrical rechargeable cell. Manufactured with a robust steel enclosure, the battery offers excellent resistance to vibration, shock, and harsh operating conditions while maintaining low self-discharge and high energy efficiency. It is suitable for battery packs used in electric vehicles, solar energy storage systems, portable power stations, communication backup systems, robotics, and industrial equipment. The datasheet also highlights its sturdy steel case, high capacity, long cycle life, stable output voltage, and good high/low temperature performance. Datasheet : Click Here To Open ⭐ Features High-capacity 6Ah LiFePO₄ cylindrical cell Nominal voltage of 3.2V Excellent cycle life of 2000+ cycles High continuous discharge capability up to 18A (3C) Peak pulse discharge current up to 30A (5C) Low internal resistance (≤8mΩ) Stable output voltage Low self-discharge High safety and thermal stability Sturdy pressure-resistant steel casing Excellent vibration and shock resistance Suitable for battery pack assembly 📋 Technical Specifications Brand: Blivex Model: LFP32700-6.0Ah Battery Chemistry: Lithium Iron Phosphate (LiFePO₄) Battery Type: Cylindrical Rechargeable Cell Nominal Voltage: 3.2V Nominal Capacity: 6.0Ah Energy Density: 142Wh/kg Internal Resistance: ≤8mΩ (AC, 1000Hz) Limited Charge Voltage: 3.65V Charge Method: CC/CV Standard Charge Current: 0.5C Maximum Charge Current: 1C Charge Cut-off Current: 0.3A Discharge Cut-off Voltage: 2.0V Standard Discharge Current: 6A (1C) Maximum Continuous Discharge Current: 18A (3C) Maximum Pulse Discharge Current: 30A (10 seconds) Cycle Life: 1500 Cycles (25°C, 100% DOD) Charge Temperature: 0°C to 60°C Recommended Charge Temperature: 15°C to 40°C Discharge Temperature: -30°C to 60°C Recommended Discharge Temperature: 15°C to 40°C Cell Diameter: 32.2 ± 0.3mm Cell Height: 70.5 ± 0.3mm Weight: 135 ± 5g These specifications are taken from the manufacturer's datasheet. 🔧 Applications Suitable for: Solar Energy Storage Systems Portable Power Stations Home Energy Storage UPS Backup Systems Electric Scooters Electric Tricycles Electric Four-Wheel Vehicles Electric Logistics Vehicles Battery Pack Manufacturing Communication Backup Power Industrial Energy Storage Robotics Projects DIY LiFePO₄ Battery Packs Marine & RV Power Systems The manufacturer lists applications including electric two-wheel vehicles, tricycles, logistics vehicles, special vehicles, portable energy storage, household energy storage, industrial energy storage, and communication backup power. 📦 Package Includes 1 × Blivex LFP32700 3.2V 6Ah LiFePO₄ Rechargeable Battery Cell ⚠️ Note Use only with a compatible LiFePO₄ charger and an appropriate Battery Management System (BMS). Do not short-circuit, crush, puncture, disassemble, or expose the battery to fire or excessive heat. Store the battery in a cool, dry place when not in use. Product appearance may vary slightly depending on the manufacturing batch. The datasheet includes additional handling, storage, and safety precautions for transportation, storage, and battery use.
Single Side Adhesive Barley Insulation Paper Roll 65mm x 1 Meter for Lithium Battery Packs
[Insulation Paper] The Single Side Adhesive Barley Insulation Paper Roll is a premium electrical insulation material widely used in lithium-ion battery pack manufacturing and electrical insulation applications. Manufactured from high-quality cellulose fiber, it offers excellent dielectric properties, mechanical strength, and long-term reliability. In addition, the insulation paper features a single-sided adhesive backing that allows quick and secure installation on battery cells, terminals, and electrical components. As a result, it simplifies battery pack assembly and improves production efficiency. Because of its excellent heat resistance and electrical insulation characteristics, the paper helps prevent short circuits and protects battery cells from mechanical damage. Furthermore, the material provides good oil resistance and moisture absorption properties, making it suitable for demanding industrial environments. The flexible design allows easy cutting and shaping for custom battery pack configurations. Moreover, it is commonly used in lithium-ion battery manufacturing, electric vehicles, power tools, and industrial insulation applications. This insulation paper is widely used in battery packs, cell insulation, gasket manufacturing, automotive applications, and electrical equipment assembly. 🔹 Key Features Single-side adhesive insulation paper Excellent dielectric properties High mechanical strength Good heat resistance Oil-resistant material Moisture absorption capability Flexible and easy to cut Suitable for lithium battery packs Reliable electrical insulation Durable and long-lasting performance 🔹 Technical Specifications Product Type: Barley Insulation Paper Roll Material: Pure Cellulose Fiber Adhesive Type: Single Side Adhesive Color: Green Width: 65mm Length: 1 Meter Thickness: Less than 0.5mm Electrical Property: High Dielectric Strength Mechanical Strength: High Flexibility: Excellent Packaging Type: Roll 🔹 Applications This insulation paper is suitable for: Lithium-ion battery packs 18650 battery pack assembly Battery terminal insulation Cell paper machines Electric vehicle battery packs Power tool battery packs Automotive gasket applications Electrical insulation projects Industrial equipment insulation 🔹 Package Includes 1 × Single Side Adhesive Barley Insulation Paper Roll 65mm × 1 Meter
Nickel Strip 0.12mm × 5mm 1P Plane Coated Nickel Welding Strip for 18650 Lithium Battery Pack – 1 Meter
[Nickel Strip] The Nickel Strip 0.12mm × 5mm 1P Plane Coated Nickel Welding Strip is specially designed for assembling and repairing 18650 lithium battery packs and other rechargeable battery modules. Made from nickel-coated steel, this strip provides a strong mechanical bond, good electrical conductivity, and excellent weldability. Its flat 1P plane design ensures stable current flow and reliable cell connections. The nickel coating protects against rust and corrosion, making it suitable for long-term use in power banks, e-bike battery packs, solar storage systems, UPS batteries, and DIY lithium battery projects. Supplied in a convenient 1 meter length, this strip is easy to cut, bend, and shape according to your battery pack layout. 🔹 Key Features Made from nickel-coated steel for strength and durability Size: 0.12mm thickness × 5mm width Flat 1P plane strip design Good electrical conductivity and strong weld joints Excellent for spot welding lithium battery cells Corrosion-resistant nickel coating Easy to cut, bend, and form Suitable for 18650, 21700, 26650 lithium cells 🔹 Technical Specifications Material: Nickel-coated steel (Coated Nickel) Thickness: 0.12 mm Width: 5 mm Type: 1P Plane Flat Strip Length: 1 Meter Color: Silver Application: Spot welding for lithium battery packs Compatible Cells: 18650, 21700, 26650 and similar cylindrical cells Conductivity: Good Corrosion Resistance: High (nickel-coated surface) 🔹 Applications 18650 lithium battery pack assembly Power bank manufacturing and repair E-bike and electric vehicle battery packs Solar battery storage systems UPS and inverter battery packs DIY lithium battery projects Battery repair and maintenance 🔹 Package Contents 1 × Coated Nickel Welding Strip (0.12mm × 5mm, Length: 1 Meter)
Nickel Strip 0.12mm × 4mm 1P Plane Coated Nickel Welding Strip for 18650 Lithium Battery Pack – 1 Meter
[Nickel Strip] The Nickel Strip 0.12mm × 4mm 1P Plane Coated Nickel Welding Strip is specially designed for assembling and repairing 18650 lithium battery packs and other rechargeable battery modules. Made from nickel-coated steel, this strip provides a strong mechanical bond, good electrical conductivity, and excellent weldability. Its flat 1P plane design ensures stable current flow and reliable cell connections. The nickel coating protects against rust and corrosion, making it suitable for long-term use in power banks, e-bike battery packs, solar storage systems, UPS batteries, and DIY lithium battery projects. Supplied in a convenient 1 meter length, this strip is easy to cut, bend, and shape according to your battery pack layout. 🔹 Key Features Made from nickel-coated steel for strength and durability Size: 0.12mm thickness × 4mm width Flat 1P plane strip design Good electrical conductivity and strong weld joints Excellent for spot welding lithium battery cells Corrosion-resistant nickel coating Easy to cut, bend, and form Suitable for 18650, 21700, 26650 lithium cells 🔹 Technical Specifications Material: Nickel-coated steel (Coated Nickel) Thickness: 0.12 mm Width: 4 mm Type: 1P Plane Flat Strip Length: 1 Meter Color: Silver Application: Spot welding for lithium battery packs Compatible Cells: 18650, 21700, 26650 and similar cylindrical cells Conductivity: Good Corrosion Resistance: High (nickel-coated surface) 🔹 Applications 18650 lithium battery pack assembly Power bank manufacturing and repair E-bike and electric vehicle battery packs Solar battery storage systems UPS and inverter battery packs DIY lithium battery projects Battery repair and maintenance 🔹 Package Contents 1 × Coated Nickel Welding Strip (0.12mm × 4mm, Length: 1 Meter)
19V 2.1A DC Power Supply Adapter Good Quality with 1 Year Warranty
[Adaptor Power Supply] The 19V 2.1A DC Power Supply Adapter is a premium-quality regulated charger designed to deliver stable, efficient, and reliable power for a wide range of electronic devices. With a precise output of 19 volts and 2.1 amps, this adapter is perfect for laptops, LCD/LED monitors, routers, CCTV systems, mini PCs, and other 19V-powered equipment. Built with high-grade components and advanced SMPS technology, this power adapter ensures consistent voltage output with low ripple and excellent load regulation. It protects your devices with built-in over-voltage, over-current, short-circuit, and over-temperature protection, enhancing safety and extending device lifespan. The adapter features a durable enclosure, strong output cable, and standard DC connector, making it an ideal replacement or spare charger for home, office, and professional use. Backed by a 1-year warranty, this charger guarantees dependable performance and long-term reliability. ⭐ KEY FEATURES ✔ Output Voltage: 19V DC✔ Output Current: 2.1A (Stable Regulated Output)✔ High-Quality SMPS Design – Efficient & low heat✔ Built-in Over-Voltage, Over-Current & Short-Circuit Protection✔ Suitable for laptops, monitors, routers, CCTV & electronic devices✔ Compact, lightweight & portable design✔ 1-Year Manufacturer Warranty 🔧 TECHNICAL SPECIFICATIONS Input Voltage: AC 100–240V, 50/60Hz Output Voltage: DC 19V Output Current: 2.1A Power Output: ~40W Connector Type: Standard DC Plug (as per variant) Technology: Switching Mode Power Supply (SMPS) Protection: Over-voltage, over-current, short-circuit, thermal Warranty: 1 Year 📦 PACKAGE INCLUDES 1 × 19V 2.1A DC Power Supply Adapter
R385 Pump 6-12V DC Mini Aquarium Water Pump
[DC Water Pump] Overview of this 6-12V DC Min R385 Mini Aquarium Pump Introducing the R385 Mini Aquarium Water Pump, your ideal solution for efficient water circulation in small tanks. With its compact design and versatile 6-12V DC power compatibility, this pump fits seamlessly into any aquarium setup. Enjoy steady water flow and maintain optimal conditions for your aquatic pets with ease. Designed with reliability in mind, the R385 Mini Water Pump ensures quiet operation while providing sufficient water movement. Its diaphragm base design delivers high performance & ensure your aquarium inhabitants thrive in a healthy environment. Say goodbye to stagnant water and hello to a dynamic aquatic eco system with this dependable mini pump. Whether you’re a seasoned hobbyist or a beginner, the R385 Mini Aquarium Pump offers comfort and peace of mind. Its user friendly design allows for easy installation and operation. And make it the perfect choice for aquarium enthusiasts of all levels. Enhance the beauty of your under water world with the reliable performance of the R385 Mini Water Pump. Features 6-12V DC power compatibility: The R385 Mini Aquarium Water Pump easily adapts to power sources from 6-12 volts. And also provide flexibility in setup options for your aquarium system. Compact design: With its sleek and space saving design, the R385 pump is perfect for mini aquarium setups. And also optimize space with smooth water circulation. Reliable diaphragm based design: Featuring a durable diaphragm based design. This R385 water pump also ensure smooth and trusted water flow & provide a healthy aquatic environment for fish and plants alike. Quiet operation: Engineered for quiet operation, this mini water pump decrease noise. And create a serene atmosphere for your aquatic companions to thrive without disturbance. User-friendly design: Whether you’re a beginner or an experienced hobbyist. This R385 Mini Aquarium Pump is also built for easy installation and operation. And also save you time and allow you to focus to create the perfect under water landscape. Specification Specification Details Model R385 Rated Voltage DC 6V to 12V Working Current 0.5A to 0.7A (Max) Power 4W-7W Max Lift 3m Max Suction 2m Max Water Temperature 80°C Pump Size 90mm x 40mm x 35mm (approx) Fluid 0-100°C Input/Output Tube Diameter Outer: 8.5mm, Inner: 6mm (approx) Max Current (Startup) Up to 2 Amps Life Up to 2500 Hours Maximum Flow Rate 1 – 3L/min Package Includes: 1 x R385 Pump 6-12V DC Mini Aquarium Water Pump
TPA3116D2 XH-M543 120W Dual Channel High Power Original Digital Power Amplifier Board
[Amplifier Board] Build your own music system with 120 watts of stereo output. TPA3116D2 XH-M548 Dual Channel 120W Digital Power Amplifier Board is newly designed digital audio amplifier board with fine quality is practical to install and use also has good performance. It features high-efficiency class D audio power amplifier with the latest and original TPA3116D2 core technology the BTL bridge circuit is more efficient than before. This product uses the double power supply transformer with a dynamic power supply range from 12V to 24V with high efficiency small quiescent current. Additionally, it is equipped with Perfect protection functions like overvoltage protection and output current limit. Features: A strong TPA3116D2 chip is a digital power amplifier chip, with low idle loss characteristics, makes it work well and quickly. Onboard, front-facing IC to improve the input sensitivity, high-definition sound quality. It can be used for car vehicle computer speaker, family audio and video, and empty square. This product has the characteristics of loud sound, the capacitance is large, excellent sound quality. There is no solder joint on the back of the circuit board, the chip capacitors, and the solder board together, so there is no possibility of short circuit. Package Includes: 1 x TPA3116D2 XH-M543 120W Dual Channel High Power Digital Power Amplifier Board
Banana Plugs Terminal Connectors Male Red and Black Pair 4mm Good Quality
[Power Connector] 4mm Banana Plug Terminal Connectors – Male Red & Black Pair The 4mm Banana Plug Terminal Connectors are reliable and convenient connectors designed for audio equipment, industrial instruments, power testing, automotive testing, laboratory equipment, and DIY electronics projects. With a standard 4mm banana plug diameter, these connectors are compatible with most standard 4mm banana sockets and test equipment. The screw-type connector fitting allows wires to be securely connected without soldering, making installation quick, simple, and reusable. The stackable design also allows the plugs to be connected with existing 4mm banana plugs, providing greater flexibility for testing and power connections. The Red and Black color combination makes it easy to identify positive and negative connections, making these plugs suitable for power supplies, test leads, speakers, electronic instruments, and other electrical applications. ⭐ Key Features Standard 4mm banana plug diameter Red and Black male banana plug pair Screw-type wire connection No soldering required Easy installation and removal Secure and reliable electrical connection Stackable design Compatible with standard 4mm banana sockets Easy positive/negative identification Suitable for audio, testing, laboratory, and electronic applications 📋 Technical Specifications Product Type: Banana Plug Terminal Connector Connector Type: Male Banana Plug Diameter: 4mm Color: Red & Black Connection Method: Screw Terminal Soldering: Not Required Design: Stackable Current Rating: 10A Typical Voltage Rating: Typically up to 30–60V DC, depending on application Contact Type: Spring Contact Application: Audio, Power Testing & Electronics 🔧 Applications Audio Equipment Speaker Connections Power Supply Connections Laboratory Power Supplies Multimeter Test Leads Electronic Test Equipment Industrial Instruments Power Testing Automotive Testing DIY Electronics Projects Electrical Prototyping Battery Testing ⚠️ Precautions Do not exceed the connector's actual current and voltage limits. Ensure the wire is securely tightened inside the screw terminal. Always observe correct polarity when connecting DC power. Use appropriately rated wires for the desired current. Avoid short-circuiting the connector. 10A is a typical rating and should not be treated as a guaranteed manufacturer specification unless confirmed for the specific batch/model. 📦 Package Includes 1 × Red 4mm Male Banana Plug 1 × Black 4mm Male Banana Plug
Out of stock2.8 inch SPI Touch Screen Module TFT Interface 240*320
[LED/LCD Display Module] This TFT display is big (2.8″ diagonal) bright and colorful! 240×320 pixels with individual RGB pixel control, this has way more resolution than a black and white 128×64 display. As a bonus, this display has a resistive touchscreen attached to it already, so you can detect finger presses anywhere on the screen. This display has a controller built into it with RAM buffering so that almost no work is done by the microcontroller. The display can be used in two modes: 8-bit and SPI. For 8-bit mode, you’ll need 8 digital data lines and 4 or 5 digital control lines to read and write to the display (12 lines total). SPI mode requires only 5 pins total (SPI data in, data out, clock, select, and d/c) but is slower than the 8-bit mode. In addition, 4 pins are required for the touchscreen (2 digital, 2 analogs). This 2.8 inch SPI Touch Screen Module is wrapped up into an easy-to-use breakout board, with SPI connections on one end and 8-bit on the other. Both are 3-5V compliant with high-speed level shifters so you can use with any microcontroller. If you’re going with SPI mode, you can also take advantage of the onboard MicroSD card socket to display images. Stock version: 1.1V For more displays click below, LED/LCD Display Features : It shows the color depth of 262K/65K. Need at least 4 IOs from your MCU The display has a wide viewing angle. Big display with good resolution. Package Includes : 1 x 2.8-inch SPI Touch Screen Module TFT Interface 240 x 320 1 x Stylus Pen Buy other components to attach to this LCD Display Arduino Boards Raspberry Pi Dupont Cables
Out of stock24V 1.5A DC Power Supply Adapter Good Quality with 1 Year Warranty
[Adaptor Power Supply] The 24V 1.5A DC Power Adapter is a premium-quality SMPS-based regulated power supply designed to deliver a stable and reliable 24V DC output at 1.5 amps. Supporting a wide AC input range of 100–240V, this adapter works seamlessly with Indian power sockets without requiring any plug converter. Built with advanced switch-mode power supply (SMPS) technology, this adapter offers high efficiency, low ripple, low interference, and excellent voltage regulation. It ensures smooth and safe operation for sensitive electronic devices. Equipped with short-circuit, over-voltage, and over-current protection, the adapter protects both your equipment and the power supply from electrical damage. Its compact, lightweight, and center-positive design makes it perfect for continuous indoor use. Ideal for powering CCTV cameras, routers, networking equipment, LED lighting systems, access control systems, industrial electronics, and DIY projects, this adapter delivers high reliability and long-term performance, backed by a 1-year warranty. ⭐ KEY FEATURES ✔ Output: 24V DC, 1.5A stable regulated supply✔ Wide Input Range: AC 100–240V, 50/60Hz✔ SMPS Technology – High efficiency & low heat✔ Built-in Short Circuit, Over-Voltage & Over-Current Protection✔ Center Positive Output✔ Indian Plug Design – No converter required✔ Compact, lightweight & portable✔ Low ripple, low noise & high reliability✔ 1-Year Warranty 🔧 TECHNICAL SPECIFICATIONS Input Voltage: AC 100–240V, 50/60Hz Output Voltage: DC 24V Output Current: 1.5A Output Power: 36W (Approx.) Output Type: DC, Single Output Polarity: Center Positive Category: Switch Mode Power Adapter (SMPS) Efficiency: High, low energy consumption Warranty: 1 Year 🎯 APPLICATIONS CCTV cameras & DVR systems Routers & networking equipment LED strips & lighting systems Access control systems Industrial control panels DIY electronics & embedded projects 📦 PACKAGE INCLUDES 1 × 24V 1.5A DC Power Supply Adapter * Product Images are shown for illustrative purposes only and may differ from actual product.
14V 2.5A DC Power Supply Adapter Good Quality
[Adaptor Power Supply] The 14V 2.5A DC Power Supply Adapter is a premium-quality regulated charger designed to deliver stable and reliable 14V DC output at 2.5 amps for a wide range of electronic devices. Built with advanced SMPS (Switch Mode Power Supply) technology, this adapter ensures high efficiency, low ripple, and consistent voltage regulation. Supporting a wide AC input range of 100–240V, this power adapter works perfectly in Indian households and offices without the need for a voltage converter. It features comprehensive safety protection including short-circuit, over-voltage, over-current, and thermal protection, safeguarding both the connected device and the adapter itself. With its compact, lightweight design and durable build quality, this adapter is ideal as a replacement or spare power supply for routers, CCTV systems, networking equipment, LED devices, audio systems, and other electronics requiring 14V DC input. Reliable, energy-efficient, and built for long-term use, this adapter delivers dependable performance for everyday and professional applications. ⭐ KEY FEATURES ✔ Output Voltage: 14V DC (Stable Regulated Output)✔ Output Current: 2.5A✔ SMPS Technology – High efficiency & low heat✔ Built-in Short Circuit, Over-Voltage & Over-Current Protection✔ Wide Input Range: AC 100–240V, 50/60Hz✔ Compact, lightweight & portable design✔ Low ripple & low noise output✔ Ideal replacement charger for multiple electronic devices 🔧 Technical Specifications Input Voltage: AC 100–240V, 50/60Hz Output Voltage: DC 14V Output Current: 2.5A Output Power: 35W (Approx.) Output Type: DC, Single Output Connector Type: DC Barrel Plug (5.5mm × 2.1mm) Polarity: Center Positive Technology: Switching Mode Power Supply (SMPS) Protection: Over-voltage, over-current, short-circuit, and thermal protection Build: Compact and lightweight 🎯 APPLICATIONS Routers & networking devices CCTV cameras & DVR systems LED lighting systems Audio & video equipment Access control systems DIY electronics & embedded projects 📦 PACKAGE INCLUDES 1 × 14V 2.5A DC Power Supply Adapter
4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module 4S 40A
[Lithium Battery Protection Board] The 4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module comes with recovery function – AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 40A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (If the cooling environment is not good, please reduce the load current use). The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650, 26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance). The Board which can be easily installed in a compact size or on battery bundle itself. Note: The Successful start of the drill requires a three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!). Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. The Discharge test, the voltage drop faster battery that group is a poor battery. Features: 4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery). Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery). Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version). Charging voltage: 16.8V – 18.1V. Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use). Continuous charge current (upper limit): 20A. Equalization version: suitable for starting current below 80A, power 135W below the drill. Package Includes: 1 x 4 Series 40A 18650 Lithium Battery Protection Board.
JHD 16×2 Character LCD Display With Blue Backlight
[LED/LCD Display Module] If you want to add some visual output to your Arduino projects, you’ll need a display. If you need only a little to display, the LCD 16×2 Parallel LCD Display is a quite good solution. This is a Original JHD 16×2 Character LCD Display With Blue Backlight as there are many fake JHD Displays in the Market. This is a great blue backlight LCD display. It is fantastic for Arduino based project. This LCD 16×2 Parallel LCD Display with Blue Backlight is very easy to interface with Arduino or Other Microcontrollers. This is LCD 16×2 Parallel LCD Display that provides a simple and cost-effective solution for adding a 16×2 White on RGB Liquid Crystal Display into your project. The display is 16 character by 2 line display that has a very clear and high contrast white text upon a blue background/backlight. The values shown on the display can be either simple text or numerical values read by the sensors, such as temperature or pressure, or even the number of cycles that the Arduino is performing. For more displays click below, LED/LCD Display Features : 16 characters wide, 2 rows White text on the yellow background Single LED backlight included can be dimmed easily with a resistor or PWM. Can be fully controlled with only 6 digital lines! (Any analog/digital pins can be used) Specifications: Model： JHD659 B/W Display： 16×2 character Outline： 80.0×36.0×14.5 VA： 64.5×14.5 Controller： SPLC780D Character： 2.95×4.35 Driver： 1/16 LCD： STN Blue Negative Backlight： White LED Package Includes : 1 x JHD 16×2 Character LCD Display With Blue Backlight
Out of stockTPA3116D2 50Wx2+100W Original IC 2.1 Channel Digital Subwoofer Amplifier Board 12V-24V
[Amplifier Board] This is TPA3116D2 IC 50Wx2+100W 2.1 Channel Amplifier Board 12V-24V. DC12-24V TPA3116D2 2.1 Channel Digital Subwoofer Power Amplifier Board adopts two high-quality TPA3116D2 digital amplifier chips. Sound quality is very good, high efficiency and amplifying power. 50W x 2+100W 2.1 channels (left/right channel and subwoofer channel), high efficiency and low-heat. Users can adjust the volume by themselves easily. It is powered by DC 12-24V, wide input voltage. You can check our others amplifier boards here. Features: Adopts two high-quality TPA3116D2 digital amplifier chips. Good sound quality, high efficient device and power amplifying feature. 50W x 2+100W 2.1 channels(left/right channel and subwoofer channel), high efficiency and low-heat. Powered by DC 12-24V, wide input voltage. User can adjust the volume by themselves easily. Applicable speaker impedance: 4-8 ohm. Just connect the power supply and loudspeaker box, enjoy pure digital music!. Specification Supply Voltage DC 12-24V Main Chip TPA3116 x 2 Channel Type 3 Channels(Left Channel, Right Channel, Subwoofer) Output Power 50W x 2 + 100W x 1 Subwoofer Output Match 4-8 ohm Audio Output Terminals Frequency Response Range 14-100KHz SNR 100dB Switching Frequency 1.2MHz PCB Board Size (LxWxH) mm 100 x 70 x 30 Weight 113g Shipping Weight 0.13 kg Shipping Dimensions 14 × 10 × 3 cm Package includes: 1 x TPA3116D2 50Wx2+100W Original IC 2.1 Channel Digital Subwoofer Amplifier Board 12V-24V
TG113 Bluetooth Speaker Circuit Board Module
[Audio Receiver] TG113 Bluetooth Speaker Circuit Board Module This simple Music player Board is actually what you need when you are looking for making a music system or your home theatre. It is a very perfect and small size music player, which all the makers and hobbyists can use to design their music player device like an iPod. his module has some built-in features like Bluetooth, FM, USB, SD-Card Slot, Aux & FM along with a very small amplifier which can only drive the speaker of earphones or a very low watt speaker of .2 watt – 5 watt. But, it’s always advisable to use a good quality amplifier with this module which can drive the speaker of your requirements as there is a lot of variation in the wattage rating of speakers available in the market so its hard to predict the speaker of your choice will work with this module or not. Features: Output: Single channel Digital Audio Output Input:- USB/SD Card Slot/Bluetooth/FM/AUX. DIY speakers and modified audio/car rare weapon Support MP3/WMA/WAV/ format music Power Source: USB & Battery Battery supply voltage: 5V Features/Specs: New and improve microchip technology Working voltage: 3.7V-5V DC Inbuilt sound sensor or mic for recording purposes Support: mp3/Bluetooth/USB/aux/FM Push buttons for easy handling Excellent sound quality Widely used in portable speakers Can drive a normal speaker directly Length: 43 mm Width: 38 mm Height: 11.5 mm Weight: 8 gm Applications: Stereo Headphones Wired stereo headsets and headphones Portable Bluetooth Stereo Speakers Datasheet: Package Includes : 1 x TG113 Bluetooth Speaker Circuit Board Module Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
A2212 10T 1400KV Brushless Motor for Drone (Soldered Connector)
[Drone Motor] The A2212 10T 1400KV Brushless Motor for Drone is best compatible or used with SimonK 30A ESC and 1045 Propeller Set. This 1400KV brushless motor is equipped with a solid metal case which makes it reliable and durable. The A2212 10T Motor comes with a pre-soldered good-quality connector for a fast and direct connection between ESC and the motor. Application : Drones Quadcopters Multirotors RC Airplanes UAV Motor KV (RPM/V) 1400 Motor Type Brushless Motor Compatible LiPO Batteries: 2S to 3S Model No.: A2212 10T Shaft Diameter (mm): 3.17 Current Capacity (A) 16 Max. Efficiency Current (A) 6 ~ 12 No-Load Current (mA) 700 Maximum Efficiency 0.8 Length (mm): 27.5 Weight (g): 72 Width (mm): 27 Shipping Weight 0.078 kg Shipping Dimensions 12 × 6 × 5 cm Features : The steel design is capable of withstanding competitional conditions. Lightweight design makes them suitable for a wide range of Quadcopter and Hexacopter Frames. Compact size. Offers great performance and value for money. Smooth throttle response for best RC experience. Package Includes : 1 x A2212 10T 1400Kv Brushless Motor for Drone 1 x Prop Adapter A Motor Holder (X-type) and set of screws
1260110 3.7V 10000mAh Lipo (Lithium Polymer) Rechargeable Battery
[LiPo Cell] 3.7V 10000mAh Lithium Polymer (Li-Po) Rechargeable Battery – Model 1260110 Being a Lithium Polymer (Li-Po) rechargeable battery, this is a high-capacity, lightweight battery designed for applications where compact size, high energy density and good capacity-to-weight ratio are important. This 3.7V 10000mAh Li-Po battery uses a solid polymer electrolyte and is suitable for DIY and commercial applications such as power banks, GPS devices, MP3 players, FM radios, Bluetooth speakers, IoT devices and other portable electronics. This battery is Model 1260110, Grade A quality, certified and designed for high-performance rechargeable applications. ⭐ Key Features High-capacity 10000mAh rechargeable Li-Po battery 3.7V nominal voltage Maximum charging voltage 4.2V Lightweight and sleek design High specific energy and energy density Excellent capacity-to-weight ratio Flexible form factor Compact size for portable applications Grade A quality rechargeable cell Suitable for DIY and commercial applications Useful for portable electronics and battery-powered projects 📋 Technical Specifications Model Number: 1260110 Battery Type: Lithium Polymer (Li-Po) Type: Rechargeable Battery Nominal Voltage: 3.7V Maximum Charge Voltage: 4.2V Capacity: 9200mAh(Approx) Battery Chemistry: Lithium Polymer Size: 110 × 60 × 12mm Quality: Grade A Form Factor: pouch cell 🔋 Battery Characteristics Lithium Polymer batteries are known for their lightweight construction, high energy density and flexible form factor. The pouch-style construction allows the battery to be designed in various shapes and sizes, making it suitable for compact electronic devices where space and weight are important considerations. 🔧 Applications 1. Portable Power Banks External battery packs Smartphone and tablet charging systems USB-powered portable devices 2. Medical Devices Portable medical equipment Portable monitors Battery-powered medical devices 3. IoT Devices Wireless sensors Compact IoT devices Low-power wireless electronics 4. Uninterruptible Power Supplies (UPS) Small-scale portable UPS systems Backup power applications 5. DIY Electronics DIY power banks Bluetooth speakers Portable audio projects GPS projects MP3 players FM radios Custom rechargeable battery packs 🛠️ Charging & Usage Use a charger specifically designed for single-cell 3.7V Li-Po/Li-Ion batteries. The maximum charging voltage is 4.2V. Do not connect the battery directly to a 5V supply. Use an appropriate charging/protection circuit for safe operation. Avoid short-circuiting, puncturing, crushing or physically damaging the pouch cell. 📦 Package Includes 1 × 3.7V 10000mAh Lithium Polymer Rechargeable Battery Model: 1260110 ⚠️ Safety Precautions Do not overcharge or over-discharge the battery. Do not short-circuit the battery terminals. Do not puncture, bend excessively, crush or open the battery. Keep away from excessive heat, fire and direct flame. Use a suitable Li-Po charging module with appropriate protection. Inspect the battery before use; do not use if swollen, damaged or leaking. Store in a cool and dry place when not in use. Keep away from children and pets.
Blackboard VHM-314 Bluetooth 5.0 MP3 Decoder Board with Micro USB and 3.5mm Jack
[Audio Receiver] The Blackboard VHM-314 Bluetooth 5.0 MP3 Decoder Board, bundled with a Micro USB connection and a protective case, is a versatile and compact audio decoding solution designed for audio enthusiasts and DIY electronics projects. This decoder board integrates advanced Bluetooth 5.0 technology, providing a seamless and high-quality wireless audio streaming experience. Features: Easy to use Easy to connect Good quality product Specifications: Power Supply: 3.7-5V SNR: 90db THD+N: -70db Crosstalk: -86db DNR: 91db Support Profile: A2DP/avctp/AVDTP/AVRCP/HFP LOS: >15m Package Includes: 1 x Blackboard VHM-314 Bluetooth 5.0 MP3 Decoder Board with Micro USB and 3.5mm Jack
3 Series 20A 18650 Lithium Battery Protection Board 11.1V 12V 12.6V Good Quality
[Lithium Battery Protection Board] 3S 20A 18650 Lithium Battery Protection Board with Balance – 11.1V/12.6V The 3 Series 20A 18650 Lithium Battery Protection Board is designed for building and protecting 3S lithium-ion battery packs using 3.6V/3.7V cells such as 18650, 26650, and compatible lithium-polymer cells. It features automatic recovery, balanced charging, and 20A continuous charge/discharge capability. The board uses 10 low-resistance MOSFETs and provides approximately 100mA balancing current. ⭐ Key Features 3S lithium-ion battery protection board Suitable for 11.1V nominal / 12.6V fully charged battery packs Supports 3.6V/3.7V lithium-ion cells Compatible with 18650, 26650 and compatible Li-ion/Li-Po cells 20A maximum continuous discharge current 20A maximum continuous charge current Built-in 100mA balance function Automatic recovery after protection operation Integrated 10 low-resistance MOSFETs Suitable for compact DIY battery-pack construction Designed for applications such as drills, sprayers, LED lights and low-power inverters 📋 Technical Specifications Product Type: 3S Lithium Battery Protection Board / BMS Battery Configuration: 3 cells in series (3S) Compatible Battery: 3.6V/3.7V Li-ion cells Battery Pack Voltage: 11.1V nominal Full Charge Voltage: 12.6V Continuous Discharge Current: Up to 20A Continuous Charge Current: Up to 20A Balance Current: Approximately 100mA Balance Function: Yes Recovery Function: Automatic recovery MOSFET: 10 low-resistance MOS tubes Charging Voltage: 12.6V for the completed 3S pack Board Size: Approximately 46 × 60 × 3.4mm Compatible Cells: 18650, 26650 and compatible lithium-polymer cells 🔧 Applications 3S 18650 battery packs DIY rechargeable battery packs Electric drills Battery-powered sprayers LED lighting systems Low-power DC inverters Portable electronic projects Robotics and DIY power systems 🛠️ Wiring The balance connection points should be connected in the correct sequence according to the board markings: 0V → 4.2V → 8.4V → 12.6V Do not short-circuit the terminals or connect the cells incorrectly. ⚠️ Important Notes The 20A rating is the maximum continuous rating; actual usable current depends on cooling, wiring, MOSFET temperature and battery capability. For electric-drill applications, high-current cells are required. Ordinary low-current 18650 cells may not be capable of supplying the required starting current. Sources specify high-C-rate cells for drill applications. If cooling is insufficient, reduce the load current. For brushed DC motors, a suitable suppression capacitor may be used across the motor terminals to reduce voltage spikes, as recommended by the supplied product instructions. Cells used in the same 3S pack should be properly matched and have similar voltage and condition. This is a protection/balancing board, not a standalone 12.6V charger. Use an appropriate 12.6V lithium-ion charger. Connect the battery and balance wires exactly according to the PCB markings. 📦 Package Includes 1 × 3S 20A 18650 Lithium Battery Protection Board with Balance
Out of stock2 inch 15 Watt 3-4 Ohm Speaker 53mm Diameter good Quality
[Speakers] Description This is a general-purpose 3-4 Ohm 15 Watt Speaker that can be used for a variety of audio projects. It has a balanced frequency response and is extremely efficient. Excellent high-frequency response. It is a type of transducer that converts electromagnetic energy into sound waves. It converts analog signal inputs from computers or audio players into sound waves. Because of its small size, it can be used in a variety of applications where space is limited. It can be used in Doorbells, Bluetooth speakers, music systems, Alarms and various other projects. Specifications Impedance 3-4 ohms Power 15 Watt Speaker Dimension 53mm*53mm Thickness 29.4mm Magnet Diameter 44.0mm Shape Top Round, Square Frame Material Metal, Magnet & Plastic Color Black & Silver Magnet Type External Quantity 1 Pieces Country of Origin China