Yes, two Pro Products in T35's an T60's. I'm using Herpstat 2's an 4's. Rooms are 70 in the summer an mid 60's in the winter.. If I order anymore T8's I'll have two small Pro Products put in them. The temps stay constant even if the room temp drops. So much better then the old days.
Call Pro Products an see what they say, 845-628-8960.
Good luck!