Advantage 1: The new original lamp beads, pure color temperature Advantage 2: The new program LED cross-flow booster board, support 10-30V wide voltage input; Advantage 3: 3 1 group, free to cut! 15-22 inch universal all-around type Advantage 4: Adjustable brightness! Cross-flow board specifications: 7cm * 2cm (length * width) Constant flow board, also known as booster board Light bar specifications: 490mm * 4mm * 2mm (L * W * H) (81 beads / bar) Input voltage: 10V ~ 30V wide voltage colour:White Material:Fiberglass panels <br><br>Package Contents:1 set x LED Adjustable Backlight Upgrade Kit Only the above package content, other products are not included. Note: Light shooting 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.