WS2812 is an intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 5050 components. It includes intelligent digital port data latch and signal reshaping amplification drive circuit. Also include a precision internal oscillator and a 12V voltage programmable constant current control part, effectively ensuring the pixel point light color height consistent. LED with low driving voltage, environmental protection and energy saving, high brightness, scattering angle is large, good consistency, low power, long life and other advantages. The control chip integrated in LED above becoming more simple circuit, small volume, and convenient installation. Please note this is a pack with 100 individual LEDs. Features: Integrating control circuit and RGB chip Built-in signal reshaping circuit Built-in electric rest circuit and power lost reset circuit 256 brightness and 16777216 color display Cascading port transmission signal Parameter Model: WS2812 pixel board light source: SMD 5050 RGB plate: aluminum plate IC Model: WS2812B the gray level: 256 Beam angle: 120 ° Color: full color, can be adjusted by the controller as follows: white, red, yellow, blue, green, etc. The standard operating voltage: DC 5V Power: 0.3W ± 0.01% Waterproof: not waterproof FPCB board size: Width: 10 mm, thickness: 3mm FPCB board color: white Kindly note None of the LEDS are connected through the PCB. So you need to solder them based on your requirement. There are 6 solder points on the back of LEDs. Arduino is not included. Package: 100pcs WS2812B LED mounted on white PCB Board