Up for sale ia a really light and slim , TV/Video Monitor. I am an expert videographer and i utilized this item to monitor my video as my crew shot. The power supply for this TELEVISION is external (110 VAC input, 12V DC output). The TELEVISION power supply rating (stamped on the TELEVISION) is 12V DC at 5A. This suggests that you can operate this infant with a 12 volt battery or a speedo.