So my house has recessed halogen light bulbs in the ceiling which I’m switching over to LED light bulbs (just the bulbs, not the fixtures). My understanding is that halogens burn at a toasty 500 deg F while LEDs are down at 100 deg F (which is why the are so much more efficient.). Anyway, in the attic above the light fixtures are large light boxes made of plywood. The boxes have what I call smokestacks which are black and shown in the pic. I think the idea was to let the hot air from the Halogens out through the stacks and above any insulation placed on top of the light boxes. In my quest to better air seal the house, I’m thinking of capping off these stacks and foaming around the joints of the light boxes. Anyone see an issue with this ? Any other ideas ? TIA!
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Sorry for the Pic. The pic should be rotated 90 deg clockwise so that the black ABS stacks are pointed upward. The stacks are attached to the light boxes made of plywood at their bases.
How many watts? It's the total wattage in a small area (especially when surrounded by insulation) that is the thing to worry about. Under about 200 watts total per fixture should be fine.