Simply plug the transmitter into your vehicle's 4-Way flat plug,  strap on the super bright LED Tow-lights (or use the powerful non-scratch magnetic mounts), push the ON switch located on the back of the right light and go. Package Includes transmitter, super bright LED left and right lights, two 30 inch light mounting straps.  New Combo Pack now also includes the Magnetic Mounts. Each light operates up to 24 hours on 4 AA lithium batteries per light (not included) and is visible up to one mile+!