I wanted to add some more input to my low CFM cool tube setup...

About 2 months ago (I think), I had a malfunction with the cool tube fan's (6" 90CFM) timer... and it ran (I'm guessing) around 14-16 hours without any kind of ventilation... the bulb didn't pop (again, it's a 400W MH).

The cool tube, PVC setup thing was SUPER hot... I turned ON the fart fan, and around 1 hour later, it was down to more acceptable levels.

I just found that noteworthy...

Best,

-turtle420
.