400W radiums. anyone here use em?
From the info that I have received the ballasts will power all the German/Euro bulbs out there with no problem. It is in the way the ballasts are designed. The bulb is brighter than on a regular 400 watt ballast. The color difference is a much cleaner looking whie blue. As far as comparing it to other ballasts I have yet to do that due to not having any others at this time. Thanks
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