Use the amber warning light side while at the recovery site for visibility. When you're ready to tow, simply turn the light around and plug in your transmitter for your Stop/Tail/Turn lights.Constructed of PVC with 100 lb. magnets. It features amber marker lights on the sides and two switches on the bottom. One switch for your tow lights, the other for the warning light. Includes 4-way transmitter and recharge cord.