Crawler Parts and accessories Give your car or truck a scale look with true scale functionality without spending tons of money or time. This LED Kit features a complete set of fully-functional LEDs that respond to your transmitter inputs - hit the brakes and your tail lights will go bright, turn left or right and the turn indicators will blink on and off, even the reverse lights and high beams respond when you punch the throttle in either direction. Best of all, this kit is extremely easy to install and use. Everything you need comes included and all the components are 100% plug-and-play, no soldering required.