Quantum dimmable ballast???

Hey guys, I've been using the quantum 600 watt dimmable ballasts, you can run these ballasts at 50-75-or 100 percent power. I like these ballasts a lot and I got mine off ebay for like 190 bucks no tax, and free shipping.

Anyways, I am wondering how much better off I would be using a dimmable 1000 watt ballast at 75 percent power vs a 600 watt at 100 percent power. Would the extra 150 watts produce a significant amount of extra light or would it be prettt much the same as a 600??? I have no idea how you would compare other than just setting em side by side and seeing which looks brighter.

a 1k watt would definitely put out more lumens than a six hundred watter... but on a side note, six hundies put out the most amount of lumens per watt over any other watt, which makes them very nice..
i have been looking at those dimeable ballasts, how do you like them? have you had any issues with them as of yet?

Yeah I really like the dimmable ballasts. I have two 600 watters. Since no one makes a 600 watt metal halide, I have just been putting a 400 watt halide in the 600 watt ballast and run the ballast at 50 to 75 percent, seems to work fine. Of course I only do this for veg and the first couple weeks of flower. Does anyone else continue to use halides into the first couple weeks of flower? I have found that doing this seems to eliminate some of the stretching.

The lumen rating doesnt matter as much as the PAR rating which it usable light to the plant. Check out this interesting video on a new electronic ballast company that blows lumatek out of the compitition... im going to do a little reasearch on PAR levels to see how much of a difference this ballast would make. http://www.youtube.com/user/MonsterGardens#p/u/0/pGJ50UkxcTg