With a new imported lamp beads, better brightness, color temperature correction. The new program LED constant current step-up board, supports 12-30V wide voltage input. 3 1 groups are free to crop! 15-24 inch universal versatile. Adjustable brightness. Driver board size:7x2cm Input:DC 12-30V LED strip size:355x4mm Colour:blue Material:Fiberglass panels Installation: If your monitor is using a inverter, then this kit replace the inveter to plug into the driver board If your monitor is a high-voltage integrated power supply board, then: the board energized, find 12V (capacitance), and then unplug the power supply,use a multimeter to find and 12V (capacitance) Disconnect original connecting the negative terminal, the board received three line: 12V, ON, GND, the 12v of the inverter connect with 12v positive electrode of hign-voltage intergrated power supply board,GND is connected with the negative electrode, ON connect with the ON or OFF. In simple terms, tThe original high voltage power supply is disconnected,instead of the inverter, In the original high-pressure front to take power. Package Include: 4x LED strip 2x Driver board 2x cable 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.