This 2.4GHz wireless tow light system comes with a light bar, transmitter anda charge cord. Simply plug the 4 pin transmitter into your trucks 4 pinconnector. Turn on the truck bar by switching the on/off button. The taillightsdo not come on when the unit is powered on, only when the towing vehiclestaillights are on. This is a tremendous battery saver. Once the transmitter istransmitting the bar will do what the truck instructs it to do. (Left or Rightturn, Stop or Taillights) Light bars feature all L.E.D. lights, transmits up to1000ft with a runtime of about 20 hours. We offer a 3-year warranty onthe circuit boards.Each unit is individually serialized and programmed to eliminate cross talk between other units. Warranty issues will be handled directly through the manufacturer. Please have your serial number available when calling in with warranty issues. 25″ Wide Three 2″ center markers Two 105# Pull rubber coated magnet mounting 4 Pin Connection Comes with transmitter, 12V Charger and port covers Run time Single battery: 4-6 Hours Run time Double battery: 6-10 hours 1000 Foot line of site visibility Charger indicator Light Individually serialized and programmed to eliminate cross talk between other units FCC approved All lights are hard-wired All connectors are shrink tube Dimensions: Warranty: 3-year warranty on circuitry 25″L x 5-3/4″H x 3-3/4″D