This is the Ultra-Brite Head and Tail Light Set for R/C Cars. System comes completely pre-wired. Designed to provide the brightest possible lights for either electric or gas powered R/C cars while using a minimum of battery power. Designed to be wired directly to an electric cars battery source OR to use a 9V battery with the included 9V connector. One Ultra-Brite Head Light/Tail Light Wire Harness Set Prewired with two white lights (headlights), two red lights (taillights) and one 9V battery connector. One Instruction Sheet. One Ram Logo Stick Sheet One 9 volt alkaline battery for gas powered cars OR solder and soldering iron to connect harness to the chassis mounted wires. Silicone glue to mount the lights, and scratch built light mounts. Double sided tape to mount the 9V battery. Input Voltage: 7.2 to 9 Each light is on a separate 12" wire Powering the Harness: Most electric car modelers simply cut off the the end of the battery snap and attach the two wires to the chassis side of the car's battery connector. Red and black polarity MUST be followed. In this way, when the 6 or 7 cell car power battery is connected, the lights will be on. Performance and running time will not be effected. Gas powered car modelers will simply attach an alkaline 9 volt battery for a least 4 hours of operation. A switch can be added to the red battery wire if desired. MAF7/27/00 ir/jl &