Go to your local craigs list website. Got to the "for sale" section...type in "metal halide". When construction crew renovate warehouses and businesses they usually keep the lights to re-sell. You can grab a 400w Metal Halide for 10-50$$. I checked this morning and found 4-400w metal halide shop lights wired for 110 or 220...all 4 for 40$$!! Cant beat that!!!