(*Please NOTE this is image was achieved useing 2 dual mini bike kits.) This kit includes (1) ONE 6" long light bulb with a power inverter and installation kit. This kit runs off of 12volt DC. This kit was designed for mini choppers and pocket bikes with a 12volt battery on board. You can simply connect the power inverter to the battery wires and off you go! Dont have a power source on board? No problem! we also have a 12volt portable power pack that uses 8'aa batteries, if you need that just select it in the options! * All of our mini bike light kits include an installation kit complete with necessary hardware for a simple installation.