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 surface 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