Those of us that take grow room safety into account do already know this.I thought we ALL knew that the bulb must match the ballast.
I promise you it will work I'm running the setup right now and I can see right in front of me that my tent is 2-4 degrees cooler and the fact that the bulb itself is so much larger and actually fits center in the hood unlike 400's and 600's which always sit on the side of the hood closest to the bulb socket just because there not long enough. The 1000w bulb should make for less of a hot spot. And although I can't prove it I think it's fair to say sense a little more than half the power is being out out the bulb and it's not being stressed or heated to its normal heat it should be all mean retain par lighting longer and just last longer in generalgod damn it!I was thinking of doing that, but said no, now you say this will work???
Your wrong a 1000watt bulb run via a600watt ballast will work but will work as a 600watt bulbReally, does that question even need to be asked???? its like saying would a fat bitch fit in a mini...........actually, i take that back, try it, see what happens.......lol
did anyone actually say the 600 watt would 'work' as a 1000 watt....the question was would it work at allYour wrong a 1000watt bulb run via a600watt ballast will work but will work as a 600watt bulb