The LED lights generally last 100,000hrs so if light is 'not' coming on it will be 99% of the time be the transformer that is faulty, this is the power supply to the LED light.
*Remember light on/off switch is on the actual electronic controller.

Parts possibly needed are;
1. Transformer, part number GSP3-Led-Transformer, price $59.00
2. Led Strip, part number GSP3-LED, price $59.00
Fill in below form to start the process to order parts.