Are you using 4 400 watt bulbs or are the 2 you turn down a lower wattage? I'm running 6 400w hps on Lumatek digital ballast and am having to run 4 turned to 250w to keep all lights on if all 6 at 400 ever so often 2 lights will go completely out
Swamp Donkey, welcome and please use the Search function there lots of discussions on this, not trying to be rude but you'll learn a lot. Honda 2000 has max rating of 16.7amps so 4*400W=1600W/120V=13.3 amps + seems like it should work but that max - Running amp rating for generator is 1600W and is 13.3amps so you'll poop it will 4.
I run 6 400W HPS lights and chargers and other stuff on my rig with 2 2000 hooked up in parallel. Good luck
Im trying to run a DLS 27-40 with 4-400 Watt HPS off of a parallel kit of two champion Invertor Generators and when I gas the throttle on the trolling motor it kills the generator. I must be right at the limit...