Home Products 4 LED Lights + Buzzer _WS3528 19 4 LED Lights + Buzzer _WS3528 【4 LED Lights + Buzzer _WS3528】 3528 Size26mm*15mm*6.5mm PCB Material:FR4, T=1.0mm Operating Voltage5V Features: Includes a bleed resistor for overall flywheel 2 impedance matching. 1665925