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Re: [APD] Cooling fans for hoods

James H wrote:
> for cooling flourscent lamps almost all of the heat is generated in the
> ballast not the tube

I dunno. My AHSupply kits didn't seem that way. The ballasts would run 
warm to the touch, but the bulbs would burn you if you held them for 
more than a couple seconds.

Jerry Baker
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Aquatic-Plants at actwin_com