I understand that but if you're running at 100% and your driver is 110F+ it's going to throw some of that heat out into the tent compared to if it was only 90F
You can see how much heat it actually is from the screeshot in my post. It allows to calculate the amount of heat the driver spreads out at different driver load.
If you dimm to let's say 50% it put's out only 47-48% less heat because the driver will lost some of it's effiency at 50% load.
How hot the driver is, does not matter. It depends on how much heat he gives off altogether.
An example.
An HLG-240 produces about 6% heat at full load (250w), so 15w pure heat. An HLG-480 dimmed down to 250w will produce about 8% heat (20w) just because it lose some efficiency at only 50% load(~3%)!
Nevertheless, the HLG-240 feels hotter at 100%, simply because it's housing is smaller and has only 50% of the cooling surface.
That means, although the HLG-240 runs hotter, there is a total of 5w less heat output against a dimmed HLG-480.
Nevertheless it is useful for some to mount the driver outside of the tent especially for the ones living in hotter area's. I for instance need the heat inside my tent because most of the year it's too cold where I life and I have to fight with a cold root zone.
