4 lamp backlight universal lcd laptop ccfl inverter 10-30v for 15-22" screen. 10-29v wide voltage board high-voltage definition interface: 1. Vcc, 2. Vcc, 3. On / off, 4. Adj, 5. Gnd 6. Gnd for 15-22" widescreen, stable worksize: 3.9x13.3 cm interface: red line = entrance, yellow = line switch / brightness adjustment, black wire = ground quantity: 1pcpc note: due to the difference between different monitors