stevetberry
Well-Known Member
- Joined
- Sep 26, 2009
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- 112
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I have a Sun System Galaxy ballast that I put a 1000 watt MH bulb in and turn it down to 400 watts for the beginning of veg and then the last week of veg I turn it up to 600. I then switch to a 1000 watt HPS bulb for flowering and turn it on 600 watts and run it that way all the way through flowering. My ballast is 400, 600, 1000 and turbo and it says on the box that you can use the a 400 watt bulb on the 400 setting on any bulb that is of a higher wattage.