Thanks, I was thinking along those lines (theoretically), but you know how when you actually go to do something the results can be a lot different than the theory (because of the complexity of the overall equation). You really have to talk to someone thatâ??s actually done it.
Totally makes sense though: watts and BTUâ??s are two different ways of measuring heat. Watts x 3.412 = BTUâ??s. So 1000 watts (the amount of heat put off by a 1k light + itâ??s ballast) is equal to 3412 BTUâ??s. So 3500 BTU's of cooling power would offset the heat of the light, then add the amount that would be needed to cool the same room if it had no lights in it. Yeahâ?¦â?¦:stoned:

Btw, air for lights is pulled in from outside --- but itâ??s like 60 â?? 65 degrees, night. Feels nice and cool, but for cooling purposesâ?¦â?¦â?¦â?¦â?¦â?¦â?¦