Bulb wattage vs. ballast wattage

Discussion in 'Indoor Cannabis Growing' started by Ojos En Fuego, Mar 23, 2007.

  1. I was looking on ebay today and saw a really cheap 1000 watt ballast system, but I already have a 400 watt light. Will a 400 watt light work in that strong of a ballast? Or would I have to buy either (a. a 400 watt ballast or (b. a 1000 watt light...
     
  2. bulb wattage MUST match ballast wattage and vice versa. the only exeption is that some 400w ballasts will fire a 430w bulb.
     

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