When I started we had just a 120 volt sports compressor. it worked for about a month after we took over, and i upgraded to a walmart special that uses an on board rechargable battery for power. it seems to work great, i can take it into bigger jobs with me, plus it comes with an added flash light that has helped a couple of times. I’m sure it will be due to be replaced in not a long time, but it does the trick for now.