LED brake, tail and Left/Right turn signals wirelessly, provide optimum range and reliability 1,000 feet of range Super power magnets with rubber boots and is non-upgradeable Recharges from 12V, 20-24 hours of use between recharge, 2-3 hours to fully recharge the battery can be used for over 40 hours Work voltage: DC12V (range DC10.8V~13.8 V) System comes with 4 round pin transmitter, light, charge cord and foot covers -40º F ~ 130º F environment operating temperature The individual tow light dimension: 7.4 (L) x 2.1 (W) x 2.4 (D) Injection molding keeps the electronics completely sealed from moisture, corrosion or vibration damage. Heavy Duty weather resistant housing.