Is there an alternative for Tempered Glass Growlight lenses?

WOW!! Thanks people. I think I'm going to go with the 2xstrenghth glass, the cool tube thing looks frickin' awesome but I just can't do all that stuff. I'm a simp. With my space I don't think heat will be an issue. I am getting a 400 and something CFM squirrel cage blower and an oscillating fan(at the canopy). My space is like 50 cubic feet so it should be great in there( I should move in with them!).

I heard a good rule of thumb is to go with CFM=Watts of light. It's probably overkill, but if I want to upgrade to 400 or 600 watts it'll be perfect.

Thanks again for all the help. Although this is a smaller site than some of the others, it has been so much more helpful and friendly.