Features: For 1 monitor, 1 kit is enough. And so on.Support: 20 inch Monitor LED board: Size,L/W/H:6.8cm*1cm*0.5cm Dimable, same function as . Input,9-25V.Make the monitor be brighter and now you can experience lifelike images. LED backlight strip sets can update for LCD monitor and the light can be dimmable. This LED backlight strip kit is a direct replacement for LCD Laptop screens that were originally equipped with a single CCFL backlight inverter. Specifications: Light Color: White LED Board Input: 9-25V Size: 450mm*3mm*2mm / 17.7 inch x0.12 inch x0.08 inch (.) LED Board Size: 7cm*2cm*0.5cm / 2.75 inch x0.79 inch x 0.20 inch (.) color: White material: plastic Package Contents: 2x 450mm led backlight 1x Circuit board 1x Power 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.