250w bulb 400w ballast

Discussion in 'Growing Marijuana Indoors' started by chwplayer09, May 28, 2010.

  1. i bought a 400w hps light ballast and hood. It seems the small crawlspace is getting too hot, is it possible to get a 250w bulb and hook it up into the hood and ballast? I dont wanna waste my time buying a lower wattage light if its not going to work. I am only growing one plant hydro.
  2. You just need a better fan. They make special fans for cooling HID lights. Your hood should probably have a hookup for one.
  3. sorry to say my friend.....that ballast will only ignite 400w bulbs.

    try calling the place you got your light from and see what the return policy is. i know htg will let you swap products within 2 weeks.

    maybe if ur tech saavy you cand find a DIY for igniting bulbs with a tweaked ballast...
    hope it works out for you either way

Share This Page