mellow man - great explanation.. and I see your point exactly (thanks to your great explanation)... regarding the bulb never heating up enough to send 155+ degree air to the fan... maybe you could put a thermometer right in front of the fan to check the air temp right before it gets to the fan...

anyway..GREAT explanation... thanks..

and you are DA MAN!!!!!!
Garden Knowm Reviewed by Garden Knowm on . Homemade 1000w cool tube! First off let me say! that I asked around this forum several months ago about cool tubes for lights,we all know how exspensive those cool tube's with fans can be!...............by the time you buy the hood with glass $200 then you have to buy the fan and the duct work another $160 or so,it can get exspensive and odds are you will have to order most of it through the mail,which has a shipping and handling rate of another $50 to $80 bucks depending on where you live!......... So believe it or Rating: 5