Home Products 4 LED Lights + Buzzer _WS2812 18 4 LED Lights + Buzzer _WS2812 【4 LED Lights + Buzzer _WS2812】 2812 Size:31mm*22.3mm*6.6mm PCB Material:FR4, T=1.0mm Operating Voltage:5V Features: Includes a bleed resistor for overall flywheel 2 impedance matching. 1665924