How do you light a license plate lamp with batteries? (PLEASE SEE DETAILS BEFORE ANSWERING))?

-A license plate lamp has only one wire. I am trying to figure out how to get it to light up using one small battery, no larger than one of those big flashlight batteries. Is it possible? If so, how? What size battery is needed,and how do I put the circuit together? How also do I do this since a license plate lamp has only one wire?



In case you are wondering, it is not attached to a car. This is an experiment, but with a noble purpose.



Thanks.One wire will goto the bulb base terminal,The other wire from the battery goes onto the metal of the lamp bulb holder.and 12 V bulbs need 12V batteries,bigger the battery,the longer it'll last,and vice versa.just go to the auto store and get an appropriate sized two wire socket. they have license plate light kits. may have to mod a bit. the plastic socket ones have two wires. metal ones ground in place. after market marker lights may work. smaller 12v bulbs and sockets.



if you use a 12v dry bat, the bulbs will be compatible. mount bat in trunk. add more bats in parallel for brightness.



we did the same thing with a single running light to meet the drag strip regs. but we had all the wires. so you have to swap yours out.