This students engineering project shows an outdoor setup to power a ring light. Most ring lights can be used only indoors using AC 220 V power. However if its required to use outdoor, then an DC to AC Converter is a best solution. This is an efficient and cheap solution. There are ring lights which use DC batteries from Sony and Canon but its a costly solution. Please contact us if you are interested to get this cheaper solution.
Credits: www.bensound.com