Using 8 pieces of WS2811 RGB LED emitters. The chip is a special circuit for 3-channel LED driver control inner including smart digital interface data latch signal amplification shaping drive circuit also with high-precision internal oscillator and 15V high-voltage programmable constant current output driver. In order to reduce power wave 3 channel has a certain delay conduction function. So that the ripple can be reduced when the frame is refreshed. Main features: - DC 4~7V input - Light strip can be cascaded - Gamma adjustment circuit (256 gray adjustable) - Built-in power-on reset and power-down reset circuit - PWM control side can achieve 256 adjustment scanning frequency 2.5kHz