This little power converter box made my light show portable. I have a few disco lights that plug into a wall socket and with this i can take them with me and use the car as a power source. Or even take just a battery so when camping we don't rely on the car. It is easy to put the proper end for clipping to a battery or to use the car adapter. The ends are color coded so you do it correctly. #rankboosterreview #Sponsored #Poweradd https://www.amazon.com/Poweradd-Inverter-Converter-Smartphones-Nebulizer/dp/B074PQCK3C