I kept mine in a cheap plastic humidity dome right in my tent with my 1000w and 2 t5 fixtures. 12 out of 18 survived. Distance is what matters. If ur worried about burning them just get a 20 dollar t12 fixture CEO
Menards or home depot it's what I'm using now since I got 6 in bloom with my 1000w and 6 in veg with my t5s