I don’t like to have bulbs behind glass because you are degrading the light even before it gets to the plants . But I think the de would cook in there, they are very very hot. You would need a lot of air movement to prevent a magnifying glass affect. I think sealed is the way to go . The air pots do help, but cleaning the fabric every time, gets old fast. So far liking the plastic air pots. Don’t mind the questions, I use to grow for yrs , then met a girl she made me quit, got hurt, got a scrip, got to start up again.