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It doesn't take all that much to cool the lamps. In fact blowing a fan directly on the lamps can overcool them to the point of decreasing the output.
After looking at the pics again it looks like that rascal already has vents in the top. Be interesting to put a temp probe and PAR meter on one of those things and play. I think reversing the fans to blow in and partially blocking the vent holes on the opposite end from the fans so the air is pushed out the end and out the top would be an interesting experiment. Getting air to move past the ballasts would at least extend their effective life and likely boost the output a tad.
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Grim tells it like it is.
Last year the SEC was the strongest conference but overrated. This year they were just overrated.
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