The full 220 won't go thru the tubes. I believe they'll run at about 70 or 80 watts each. I may shorten the life of the bulb a bit, but it's still more cost effective than VHO. That being said, I did switch to VHO and feel it was worth the added cost for the color and brightness. NO tubes are about $17, VHO are about $33.
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Brad
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