30Pcs DC 5V 3MM x 10MM WS2812B SMD LED Board Built-in IC-WS2812 Description:   Light source: 5050 RGB SMD Sheet material: aluminum substrate IC models: WS2811 Gray levels: 256 Light Angle: 180   Emitting light colors: can through the controller tuning for、 white、 red、 yellow、 blue、 green、 etc Standard working voltage: DC 5 v Power: 0.3 W + \/ - 0.01% Waterproof level: not waterproof The size of the FPCB board: width: 10 mm、 thickness: 3 mm   Package included:   30 x  WS2812B SMD LED