@ DoobieBrother; i dont want to think what would have happened if you hadn't gotten that rope out, ehhhh. are those T12 shop lights you've got your teenagers under? i used to use those but was eventually convinced that a T5 panel was the way to go. Not saying theres anything wrong with T12's.. they run so cool that my plants used to grow right up through them and push them apart! never so much as a scorched leaf.. I love my T5 panel with HO 54's, but they get warm enough to cause some damage if they get too close.
Yeppers: T-12 bulbs running 40watts per bulb.
Wouldn't mind running HO T-5's, but I have 6 of these fixtures (only 5 in use, as one needs a new ballast) and am a cheap bastard when it comes to upgrading some things.
But, really, 480 watts is more than enough for my own early-vegging needs, and the lack of heat stress and subsequent ability to grow up to the bulbs without damage before adjusting light height is a bonus.
This run, I am using a GE Lucolux(?) 600w HPS for vegging half of the plants, and 400w of 6500k T-12 for the other half, and the T-12's are kicking the GE HPS bulbs ass by 2:1.
Nodes are tighter, and the plants are more advanced regarding secondary growth, and the plants are overall almost twice as big vegging under the tubes compared to the GE bulb.
Flowering will be different story, naturally, but this GE bulb sucks for vegging.