ITEM NAME:4 lamp universal Inverter Small Mouth 10V-29V Output For 15-24 inch LCD MonitTE Description: 10-29V wide voltage high-voltage board Interface definition: 1.VCC, 2.VCC, 3.ON/OFF, 4.ADJ, 5.GND, 6.GND for 15-22" widescreen, stable work Size: 3.5 x 13.3cm Interface: red line = Input, yellow line = switch / brightness adjustment, Black wire = ground Package include: 1 Pcs.Interface definition: 1. ON/OFF, 4. GND for 15-22" widescreen, stable work.