WS2812B 4pin Full Color 5050 RGB LED PCB Board Lamp Module For ArduinoFeature:Intelligent reverse connect protection、 the power supply reverse will not damage the IC.IC control circuit and LED light source use a power supply.The control circuit and the RGB chip integration in a 5050 size components、 constitute a complete external control pixels.Built-in signal shaping circuit、 any one pixel after receiving the signal through the waveform shaping and then output to ensure line waveform distortion will not accumulate.Built-in power-on reset and brown-out reset circuit.Trichromatic color of each pixel enables 256 brightness display、 complete 16777216 colors full true color display、 scanning frequency is not less than 400Hz \/ s.Serial cascade interface、 can through a signal line finish receiving and decoding data.Pass any two points in the transmission distance of not more than 5 meters no need any additional circuitry.When the refresh rate is 30 frames \/ sec、 the number of cascades is not less than 1024 points.Data transmission speeds is up to 800Kbps.Package includes:1 x WS2812B RGB LED 4 pin module