I have decided to try an HQI ballast with my 400 watt 20K's instead of the regular ballast I have been using. Should burn the bulbs a bit whiter.
So I picked up the same ballast today (PFO dual 400 watts) but the HQI version. I will see if I am able to get good pictues of the difference when I get home.
Anyone else running 20K SE bulbs on an HQI ballast? I am curious to know what you think.
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