I run a quieter generator. Yamaha YG2800, with the eco-throttle it reduces engine rpm's to match power needs, also has a built in gfci. I have a 1000 watt metal halide in the center with 2 400 watt metal halides, one on each side for a total of 1800 watts. You can talk over this one, I used to run a 5000 watt Coleman that was so loud you had to yell even on the front deck.