Pro-Scale Realism This is the Traxxas Unlimited Desert Racer Complete LED Light Set. Traxxas innovation delivers features, performance, and detailed scale looks not found on any other lighting system. The included Traxxas High Voltage Amplifier packs the muscle to efficiently power the 204 individual LEDs in the kit while minimizing losses from excessive current and heat. The tightly regulated output provides stable lighting performance, without flickering or dimming as the battery voltage changes. In another Traxxas first, the smart brake lights work when brakes are applied in both forward and reverse directions. This eliminates the common and annoying problem with generic aftermarket systems that turn on the brake lights while reversing.