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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Lenovo IdeaPad Slim 3 (i5-12450H, 16 GB)
15" FHD IPS. Intel Core i5-12450H, 16 GB DDR4, 512 GB SSD. Backlit keyboard. Solid budget productivity laptop.
Only 1 leftMSI Stealth 15 (i7, RTX 4070)
Slim 15" gaming laptop. Core i7-13620H, RTX 4070 8 GB, 32 GB DDR5, 1 TB NVMe. Travels well.
Anker 7-in-1 USB-C Hub
USB-C hub with HDMI 4K30, 100W PD passthrough, SD/microSD, 2× USB-A 3.0, 1× USB-C data. Slim aluminium body.
Out of stockPower Bank 10000 mAh USB-C PD 20W
Slim 10000 mAh power bank, USB-C PD 20W in/out + USB-A QC 3.0.
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
3.7V 700mAh 503035 Rechargeable Lithium Polymer (Li-Po) Battery for DIY Electronics, Robotics
[LiPo Cell] The 503035 3.7V 700mAh Rechargeable Lithium Polymer Battery is a compact and reliable power source designed for portable electronic devices and embedded applications. Manufactured using advanced Lithium Polymer (Li-Po) technology, it provides high energy density, lightweight construction, and excellent charge/discharge performance. In addition, the battery delivers a nominal voltage of 3.7V and a capacity of 700mAh, making it suitable for devices that require compact size with extended runtime. As a result, it is widely used in Bluetooth speakers, wireless headphones, GPS trackers, drones, robotics, IoT devices, portable medical equipment, and DIY electronics projects. Because of its slim profile, the battery can be easily integrated into compact electronic enclosures where space is limited. Furthermore, its low self-discharge rate and long cycle life ensure dependable performance over repeated charging cycles. The battery comes with pre-attached wires and a connector (connector type may vary by batch), allowing quick installation in compatible devices. Moreover, it supports safe charging using standard 3.7V Lithium Polymer battery chargers or BMS protection circuits. ⚠️ Note: Charge the battery only with a compatible Lithium Polymer charger or charging protection module. Do not short-circuit, puncture, overcharge, or expose the battery to high temperatures. 🔹 Key Features Rechargeable Lithium Polymer (Li-Po) battery High energy density Compact and lightweight design Stable 3.7V output 700mAh capacity Long charge/discharge cycle life Low self-discharge Pre-attached connection wires Suitable for portable electronic devices Reliable and safe performance 🔹 Technical Specifications Battery Type: Lithium Polymer (Li-Po) Model: 503035 Nominal Voltage: 3.7V Full Charge Voltage: 4.2V Capacity: 700mAh Battery Dimensions: Approx. 5 × 30 × 35 mm Rechargeable: Yes Charging Method: CC/CV (Constant Current / Constant Voltage) Standard Charge Voltage: 4.2V Protection Circuit: May vary depending on batch Operating Temperature: -10°C to +60°C Weight: Approximately 15–18g 🔹 Applications This battery is suitable for: Bluetooth speakers Bluetooth headsets Mini drones RC toys Robotics projects IoT devices GPS trackers Portable electronic devices DIY electronics projects Wearable electronics 🔹 Package Includes 1 × 503035 3.7V 700mAh Rechargeable Lithium Polymer Battery
702025 3.7V 400mAh rechargeable Battery for Drone, Toys, Gaming, Robotics bluetoorh Headset, Bluetooth Speaker
[LiPo Cell] The 702025 3.7V 400mAh Rechargeable Lithium Polymer Battery is a compact and high-performance power source designed for portable electronic devices requiring lightweight and reliable energy storage. Built using advanced Lithium Polymer (Li-Po) technology, it provides high energy density, low self-discharge, and consistent output voltage. In addition, the battery delivers a nominal voltage of 3.7V with a capacity of 400mAh, making it suitable for powering compact electronic devices and embedded systems. As a result, it is widely used in drones, Bluetooth speakers, Bluetooth headsets, wireless gaming accessories, robotics, GPS devices, wearable electronics, and DIY battery-powered projects. Because of its slim profile and lightweight construction, the battery can be easily integrated into space-constrained applications. Furthermore, it supports multiple charge and discharge cycles while maintaining stable performance and long service life. The battery includes a pre-attached connector with insulated leads for quick installation and safe operation. Moreover, its rechargeable design makes it an economical and environmentally friendly power solution. ⚠️ Note: Charge the battery only with a compatible 3.7V Lithium Polymer battery charger or BMS protection circuit. 🔹 Key Features Rechargeable Lithium Polymer (Li-Po) battery High energy density Compact and lightweight design Stable 3.7V output Long charge/discharge cycle life Low self-discharge rate Pre-attached connection wires Suitable for portable electronic devices Reliable and safe performance Ideal for DIY electronics projects 🔹 Technical Specifications Battery Type: Lithium Polymer (Li-Po) Model: 702025 Nominal Voltage: 3.7V Full Charge Voltage: 4.2V Capacity: 400mAh Battery Dimensions: Approx. 7 × 20 × 25 mm Rechargeable: Yes Protection Circuit: Yes Charging Method: CC/CV (Constant Current / Constant Voltage) Operating Temperature: -10°C to +60°C Weight: Approximately 6–7g 🔹 Applications This battery is suitable for: Mini drones RC toys Bluetooth headsets Bluetooth speakers Wireless gaming controllers Robotics projects GPS trackers Wearable electronics DIY electronic devices Portable rechargeable products
902030 3.7V 600mAh LiPo Rechargeable Battery for Bluetooth Speaker, RC Drone, Toys, DIY & Robotics
[LiPo Cell] The 902030 3.7V 600mAh Lithium Polymer Battery is a lightweight rechargeable battery designed for small electronic devices and hobby projects. With a 3.7V nominal voltage and 600mAh capacity, it provides stable and reliable power for portable electronics. Its slim pouch design allows easy installation in compact devices such as Bluetooth speakers, RC drones, toys, GPS trackers, IoT devices, and robotics projects. Lithium Polymer batteries offer high energy density, low self-discharge, and long cycle life, making them ideal for modern electronic devices and DIY applications. 🔹 Key Features Nominal Voltage 3.7V Capacity 600mAh Compact lightweight LiPo battery Rechargeable lithium polymer cell High energy density Stable discharge performance Suitable for portable electronics Ideal for DIY electronics projects 🔹 Technical Specifications Parameter Specification Model 902030 Battery Type Lithium Polymer (LiPo) Nominal Voltage 3.7V Fully Charged Voltage 4.2V Capacity 600mAh Cell Type Pouch cell Charging Method CC-CV Rechargeable Yes 🔹 Applications Bluetooth speakers RC drones RC toys Robotics projects DIY electronics GPS trackers IoT devices Portable gadgets 🔹 Package Includes 1 × 902030 3.7V 600mAh Lithium Polymer Rechargeable Battery ⚠ Color and label may vary depending on stock batch. ⚠ Safety Instructions Do not short circuit battery terminals Do not charge above 4.2V Do not discharge below 3.0V Use a compatible LiPo charger module (TP4056 recommended) Do not puncture or expose battery to heat or fire Do not charge unattended
704060 3.7V 2000mAh LiPo Battery | Rechargeable Lithium Polymer Battery with BMS
[LiPo Cell] The 704060 3.7V 2000mAh Lithium Polymer Battery is a compact, high-capacity rechargeable LiPo battery designed for portable electronic devices. With a nominal voltage of 3.7V and a capacity of 2000mAh, it provides reliable and long-lasting power for small electronics and DIY projects. This battery includes a built-in protection circuit (PCM) that helps prevent overcharging, over-discharging, and short circuits, ensuring safer operation and longer battery life. Its slim pouch design makes it ideal for space-constrained applications such as Bluetooth speakers, GPS trackers, mini cameras, and wearable devices. 🔹 Key Features High capacity 2000mAh LiPo battery Nominal voltage 3.7V Built-in PCM protection circuit Lightweight and compact pouch design Stable discharge performance Long service life Suitable for portable electronic devices 🔹 Technical Specifications Parameter Specification Model 704060 Battery Type Lithium Polymer (LiPo) Nominal Voltage 3.7V Fully Charged Voltage 4.2V Capacity 2000mAh Dimensions 60 × 40 × 7 mm Length 60 mm Width 40 mm Thickness 7 mm Protection Built-in PCM protection board Rechargeable Yes 🔹 Applications Bluetooth speakers MP3 / MP4 players Mini cameras GPS trackers Vehicle data recorders IoT devices Portable electronics DIY electronics projects 🔹 Package Includes 1 × 704060 3.7V 2000mAh Lithium Polymer Rechargeable Battery ⚠ Battery color and label may vary depending on batch. ⚠ Safety Instructions Do not short circuit the battery terminals. Do not charge above 4.2V. Do not discharge below 3.0V. Use a LiPo compatible charger. Do not puncture, crush, or expose battery to fire. Do not charge unattended. Store in a cool and dry place.
113440P 3.7V 1500mAh Lithium Polymer Rechargeable Li-Po Pouch Cell
[LiPo Cell] The 113440P 3.7V 1500mAh Lithium Polymer Battery is a compact and lightweight rechargeable Li-Po pouch cell designed for reliable power delivery in modern electronic applications. With a nominal voltage of 3.7V and a high capacity of 1500mAh, this battery is well-suited for DIY electronics, IoT devices, Bluetooth speakers, GPS trackers, medical devices, wearables, and portable gadgets. Manufactured using advanced lithium polymer chemistry, the battery offers stable discharge performance, low internal resistance, and long cycle life. Its flat pouch form factor allows easy integration into slim and space-constrained designs where cylindrical cells are not suitable. For safe operation, the battery should be used with a proper Li-Po charging circuit (CC/CV) and protection module (PCM/BMS) to prevent over-charge, over-discharge, over-current, and short-circuit conditions. ⭐ KEY FEATURES ✔ Nominal Voltage: 3.7V✔ Capacity: 1500mAh✔ Lithium Polymer (Li-Po) Chemistry✔ Rechargeable & Long Cycle Life✔ Slim pouch / flat cell design✔ Stable discharge & low self-discharge✔ Lightweight and compact✔ Suitable for DIY & OEM applications 🔧 TECHNICAL SPECIFICATIONS Model: 113440P Battery Type: Lithium Polymer (Li-Po) Nominal Voltage: 3.7V Rated Capacity: 1500mAh Max Charging Voltage: 4.2V Discharge Cut-off Voltage: ~3.0V Rechargeable: Yes Form Factor: Pouch / Flat Cell 🎯 APPLICATIONS DIY electronics projects IoT & embedded systems Bluetooth speakers & audio devices Wearable & medical devices GPS trackers Power banks & portable gadgets 📦 PACKAGE INCLUDES 1 × 113440P 3.7V 1500mAh Lithium Polymer Battery Cell(Quantity as per selected pack)
802540P 3.7V 1000mAh Rechargeable Lithium Polymer Battery
[LiPo Cell] The 802540P 3.7V 1000mAh Lithium Polymer Battery Cell is a compact and lightweight rechargeable Li-Po battery designed to deliver reliable and stable power for a wide range of electronic devices. With a nominal voltage of 3.7V and a capacity of 1000mAh, this battery is suitable for DIY electronics, IoT projects, wearable devices, Bluetooth speakers, GPS trackers, power banks, and portable gadgets. Built using high-quality lithium polymer chemistry, the cell provides low internal resistance, stable discharge performance, and long cycle life. Its flat pouch-style design allows easy integration into slim and compact devices where cylindrical batteries cannot be used. The battery can be safely charged using a proper Li-Po charging module (such as TP4056) and should be used with appropriate protection circuitry to prevent overcharge, over-discharge, and short-circuit conditions. ⭐ KEY FEATURES ✔ Nominal Voltage: 3.7V✔ Capacity: 1000mAh✔ Lithium Polymer (Li-Po) Chemistry✔ Rechargeable & Long Cycle Life✔ Slim, lightweight pouch cell design✔ Stable discharge & low self-discharge✔ Ideal for compact & portable devices 🔧 TECHNICAL SPECIFICATIONS Model: 802540P Battery Type: Lithium Polymer (Li-Po) Nominal Voltage: 3.7V Rated Capacity: 1000mAh Charging Voltage: 4.2V (Max) Discharge Cut-off Voltage: ~3.0V Rechargeable: Yes Form Factor: Pouch / Flat Cell 🎯 APPLICATIONS DIY electronics projects IoT & embedded systems Bluetooth speakers & headsets Wearable devices GPS trackers Power banks Portable gadgets 📦 PACKAGE INCLUDES 1 × 802540P 3.7V 1000mAh Lithium Polymer Battery Cell
Out of stock3.7V 1000mAh Li-Po Battery (503035P) – High-Quality Rechargeable Lithium Polymer Single Cell
[LiPo Cell] The 3.7V 1000mAh Lithium Polymer Battery (503035P) is a premium, high-performance rechargeable Li-Po cell designed for compact and portable electronics. Offering stable 3.7V output with excellent energy density, this lightweight battery is perfect for IoT devices, GPS trackers, Bluetooth gadgets, robotics projects, MP3 players, and various DIY electronics. Built using high-quality polymer materials, the 503035P battery ensures long cycle life, steady power delivery, and enhanced safety. With a built-in protection circuit module (PCM), it safeguards against overcharging, over-discharging, and short circuits—making it a reliable and safe power source for modern electronics that demand stability and durability. Whether you’re replacing an old battery or developing a new portable device, this 3.7V 1000mAh Li-Po cell delivers dependable performance in a slim and compact form factor. ✅ Features High-performance 3.7V Li-Po cell with 1000mAh capacity for long-lasting power Compact 503035P form factor perfect for space-restricted designs Stable and reliable voltage output for sensitive electronics Ideal for IoT modules, GPS trackers, Bluetooth gadgets, wearable tech, MP3 players, and DIY electronics High energy density ensures extended device runtime Includes PCM protection for safe operation—overcharge, over-discharge & short-circuit protection Rechargeable with long cycle life, suitable for continuous daily usage Slim, lightweight design for portable and compact devices 📘 Specifications Battery Type: Lithium Polymer (Li-Po) Model Number: 503035P Nominal Voltage: 3.7V Capacity: 1000mAh Charging Voltage: 4.2V Configuration: Single cell Protection Circuit (PCM): Yes Dimensions (Approx): 50mm × 30mm × 3.5mm Energy Density: High Discharge Rate: Suitable for low to medium power applications Rechargeable: Yes – long cycle life Weight: Lightweight Applications: IoT systems, GPS modules, robotics, Bluetooth devices, MP3 players, portable gadgets, DIY electronics Package Includes: 1 x 3.7V 1000mAh Li-Po Battery (503035P) – High-Quality Rechargeable Lithium Polymer Single Cell
500mAh 3.7V Single Cell Rechargeable LiPo Battery (HCY-602530)
[LiPo Cell] 500mAh Rechargeable 3.7v LiPo Battery The 600mAh Rechargeable 3.7V LiPo Battery is a compact and high-performance power source designed for a wide range of DIY electronics, robotics, and wearable projects. With a nominal voltage of 3.7V and capacity of 500mAh, this 1S lithium polymer battery delivers a reliable and consistent power output for your low-to-medium power applications. Its lightweight and slim profile make it ideal for portable gadgets, RC toys, sensors, and IoT devices that require stable energy without adding bulk. One of the key advantages of this battery is its long-lasting runtime when used with efficient electronics. For example, if a device consumes an average current of just 2mA, the 600mAh capacity allows the battery to run for up to 300 hours (600mAh / 2mA) under ideal conditions. This impressive endurance highlights the battery’s suitability for long-duration tasks, especially in energy-conscious designs. With Witty Fox’s reputation for quality and durability, this LiPo battery is a dependable choice for both hobbyists and professionals looking for efficient power solutions. Features: High Capacity: 600mAh gives little devices a longer runtime. Consistent Performance: A nominal voltage of 3.7V guarantees stable output. It is rechargeable, so it can be used repeatedly for extended periods of time. Small Design: Elongated and light, ideal for projects with limited area Up to 300 hours of use at a current draw of 2mA is supported by smart power efficiency. Multiple embedded systems, microcontroller boards, and robotics kits can all be used with this versatile tool. Specifications: Specification Details Brand HCY Battery Type Lithium Polymer (LiPo) Nominal Voltage 3.7V Nominal Capacity 500mAh Battery Cell Configuration 1S (Single Cell) Rechargeable Yes Dimensions (LxWxH) 30 x 25 x 6 mm Weight 8 g(approx) Package Includes: 3.7V 500mAH (Lithium Polymer) Lipo Rechargeable Battery (Model – 602530)
Out of stock602030 3.7V 600mAH Lipo Rechargeable Battery
[LiPo Cell] Description 3.7-Volt 600 mAh Li-Po Rechargeable Single Battery The 3.7-Volt 600 mAh Li-Po (Lithium Polymer) rechargeable battery is a lightweight, compact power source ideal for various portable electronic devices. It offers a high energy density and reliable performance, making it perfect for RC toys, drones, wearables, IoT devices, and DIY projects. This battery is designed to deliver consistent power while ensuring safety with its built-in protection features against overcharging and over-discharging. Its small size and efficient capacity make it an excellent choice for applications requiring portability and long-lasting energy. Features: High Energy Density Delivers more power in a compact and lightweight form, ideal for portable applications. Reliable Performance Provides consistent voltage output, ensuring steady performance for connected devices. Compact and Lightweight Slim design fits easily into small and lightweight devices without adding bulk. Rechargeable Design Offers multiple recharge cycles for extended usability, making it cost-effective and eco-friendly. Safety Features Built-in protection circuit prevents overcharging, over-discharging, and short circuits for enhanced safety. Long Battery Life Capable of maintaining its capacity over hundreds of recharge cycles, ensuring durability. Wide Compatibility Suitable for a variety of devices, including RC vehicles, drones, smart devices, and DIY electronics. Fast Charging Support Compatible with fast charging setups for quick and efficient recharging. Low Self-Discharge Rate Retains charge when not in use, ensuring readiness when needed. Environmentally Friendly Made with recyclable materials, contributing to a lower environmental impact. This 3.7-Volt 600 mAh Li-Po battery is the perfect power solution for compact devices, combining durability, safety, and high performance in one reliable package Packages Includes: 1 x 602030 3.7V 600mAH Lipo Rechargeable Battery
Out of stock8 Bit WS2812 5050 RGB LED Built-in Full Color Driving Lights Circular Development Board
[RGB LED Strip] Outer Diameter: 32 mm. Supply Voltage: DC 4-7V. LED Driver IC: WS2812 Communication interface: single wire communication. Send data at speeds of 800Kbps. The color of the light was highly consistent Full-color module, Full-color soft lights a lamp strip. The 8Bit WS2812 5050 RGB LED Built-in Full Color Driving Lights Circular Development Board has round black shape, let us be clear at a glance! 8 super bright smart NeoPixels LED arranged in a 28mm outside diameter circular PCB. These ring RGB lamps can be simply connected via the output pin cascade one to the other’s input pin (DI-DO). In this way, by using only one single chip you will be able to control as many LED lights as possible, each LED lamp is integrated with a driver chip in it so that our LED becomes intelligent and addressable. Each has a -18mA constant current drive, so the LED color will be very uniform, even if the voltage change is the same, do not need an external resistor current limiting resistor to make the overall design of the RGB lamp ring to become slim, as you see so simple and easy to use. With 5V power supply to drive the RGB lamp ring. Characteristic : Single wire communication, to maximize the reduction of I/O port pressure, and the use of the RGB WS2812B driver chip, so that the peripheral circuit requires only a single capacitor can meet the needs of the circuit, give people the enjoyment of beauty, in addition, this RGB ring, but also through a simple Dout input port, and the other using the same chip RGB lamp cascade, without need considering the shape of the limit. Features : The control circuit and the LED share the only power source. Control circuit and RGB chip are integrated into a package of 5050 components, form a complete control of pixel point. Built-in signal reshaping circuit, after wave reshaping to the next driver, ensure wave-form distortion not accumulate. Built-in electric reset circuit and power lost reset circuit. Each pixel of the three primary colors can achieve 256 brightness levels, or 16M colors full-color display, and scan frequency not less than 400Hz/s. Cascading port transmission signal by a single line. Any two points the distance more than 5m transmission signal without any increase circuit. When the refresh rate is 30fps, cascade number is not less than 1024 points. Send data at speeds of 800Kbps. The color of the light was highly consistent Full-color module, Full-color soft lights a lamp strip. LED decorative lighting, Indoor/outdoor LED video irregular screen. Package Includes : 1 x 8Bit RGB Lamp Ring Development Board
Out of stock24 Bit WS2812 5050 RGB LED Built-in Full Color Driving Lights Circular Development Board
[RGB LED Strip] The 24 Bit WS2812 5050 RGB LED Built-in Full Color Driving Lights Circular Development Board has round black shape, let us be clear at a glance! 24 super bright smart NeoPixels LED arranged in a 86mm outside diameter circular PCB. These ring RGB lamps can be simply connected via the output pin cascade one to the other’s input pin (DI-DO). In this way, by using only one single chip you will be able to control as many LED lights as possible, each LED lamp is integrated with a driver chip in it so that our LED becomes intelligent and addressable. Each has a -18mA constant current drive, so the LED color will be very uniform, even if the voltage change is the same, do not need an external resistor current limiting resistor to make the overall design of the RGB lamp ring to become slim, as you see so simple and easy to use. With 5V power supply to drive the RGB lamp ring. Characteristic : Single wire communication, to maximize the reduction of I/O port pressure, and the use of the RGB WS2812B driver chip, so that the peripheral circuit requires only a single capacitor can meet the needs of the circuit, give people the enjoyment of beauty, in addition, this RGB ring, but also through a simple Dout input port, and the other using the same chip RGB lamp cascade, without need considering the shape of the limit. Features : The control circuit and the LED share the only power source. Control circuit and RGB chip are integrated into a package of 5050 components, form a complete control of pixel point. Built-in signal reshaping circuit, after wave reshaping to the next driver, ensure wave-form distortion not accumulate. Built-in electric reset circuit and power lost reset circuit. Each pixel of the three primary colors can achieve 256 brightness levels, or 16M colors full-color display, and scan frequency not less than 400Hz/s. Cascading port transmission signal by a single line. Any two points the distance more than 5m transmission signal without any increase circuit. When the refresh rate is 30fps, cascade number is not less than 1024 points. Send data at speeds of 800Kbps. The color of the light was highly consistent Full-color module, Full-color soft lights a lamp strip. LED decorative lighting, Indoor/outdoor LED video irregular screen. Package Includes : 1 x 24 Bit WS2812 5050 RGB LED Built-in Full Color Driving Lights Circular Development Board
WS2812B 4×4 RGB LED Module
[LED/LCD Display Module] The WS2812B 4 x 4 RGB LED Module has built-in Full-Color Driving Lights Circular Development Board, and a round black shape. 16 super bright smart Neo Pixels LED arranged in a 68mm outside diameter circular PCB. These ring RGB lamps can be simply connected via the output pin cascade one to the other’s input pin (DI-DO). In this way, by using only one single chip you will be able to control as many LED lights as possible, each LED lamp is integrated with a driver chip in it so that our LED becomes intelligent and addressable. Each has a -18mA constant current drive, so the LED color will be very uniform, even if the voltage change is the same, do not need an external resistor current limiting resistor to make the overall design of the RGB lamp ring to become slim, as you see so simple and easy to use. With a 5V power supply to drive the RGB lamp ring. Single wire communication, to maximize the reduction of I/O port pressure, and the use of the RGB WS2812B driver chip, so that the peripheral circuit requires only a single capacitor can meet the needs of the circuit, give people the enjoyment of beauty, in addition, this RGB ring, but also through a simple Dout input port, and the other using the same chip RGB lamp cascade, without need considering the shape of the limit. Features : The control circuit and the LED share the only power source. The control circuit and RGB chip are integrated into a package of 5050 components, form a complete control of pixel points. Built-in signal reshaping circuit, after wave reshaping to the next driver, ensure wave-form distortion not accumulate. Built-in electric reset circuit and power lost reset circuit. Each pixel of the three primary colors can achieve 256 brightness levels, or 16M colors full-color display, and scan frequency not less than 400Hz/s. Cascading port transmission signal by a single line. Any two points the distance more than 5m transmission signal without any increase circuit. When the refresh rate is 30fps, the cascade number is not less than 1024 points. Send data at speeds of 800Kbps. The color of the light was highly consistent Full-color module, Full-color soft lights a lamp strip. LED decorative lighting, Indoor/outdoor LED video irregular screen. Package Includes : 1 x WS2812B 4 x 4 RGB LED Module.