Electric Optics Middy EL Wire Inverter is a great mid-sized inverter. It takes up very little space, and provides enough power for many applications including costumes, signs and more. This 12V DC inverter powers from 6.5-11 Feet of Electric Optics EL Wire and can be used when you have a 12 Volt source already, such as a car battery, or a 2 Prong Wall Unit. Unit will come with a Male Connection, ready to attach an Easy Female Connector to. The female connector is commonly soldered on the ends of EL Wire. Also included is a positive and negative lead wire, which will hook up to your power source. This unit does NOT come with its own power source.