brand new and high quality Material: Electrical components Color: See pictures Common Electronic symbolic code of Backlight: VCC: The positive of voltage supplyCircuit 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) Application: Product features: 10-42 inch LED Backlight Lamp Driver Board Constant current board BOOST structure 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(Temperature rise = device surface temperature - ambient temperature) Limit parameters: When to 24V input: Vout = 75V Vout = 720mA maximum or 60W When to 12V input: Vout = 75V Iout = 400mA maximum or 30W No Retail Packages Quantity:1Pc Note: Due to the difference between different monitors, the picture may not reflect the actual colorof the item. Thank you