Type: LED Back Light Strips Material: Aluminum the price for Kit 8 PCS 4 PCS 5LED(6V) 530mm 4 PCS 4LED(6V) 425mm Easy to install, but it is still recommended to be operated by professionals. Every product undergoes quality inspection before leaving the factory. All parts are hand inspected off the line before packaging and once again by our team before shipment. Communication is the best way to solve the problem. If you have any problems after or before purchasing, please contact us in time, before opening return or case.