10-42 inch LED Backlight Lamp Driver Board Constant current board Conversion efficiency reached more than 92% You can use the 12V power supply to reduce the system cost! This product is constant current board,voltage is automatically adapted The temperature rise is controlled at about 25 Degree(Temperature rise =device temperature-ambient temperature) Color:green Material:plastic +metal Size:8.3*4.3cm Common Electronic symbolic code of Backlight: VCC:The positive of voltage supply.Circuit supply voltage(voltage is usually 12V or 24V) ON/OFF,ON,EN,ON_BL:Switch signal pin PWM,PDIM,VDAJ,BL-PWM:Brightness adjusting pin GND:Ground(negative electrode) LED+:the positive electrode of Light emitting diode(lamp) LED-:the negative electrode of Light emitting diode(lamp) Package Contents: 1x Universal Inverter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.