covering recessed lights
Visit your local Electrical Supply Store (not the Home Center) for 'cans'. The cans are slipped around the fixture (up in the attic) to keep the insulation off of it. In the short term, you 'cover' the can, and after the insulation is installed, the cover is removed.
Sometimes, batt insulation is used in the 'area' of the fixture. THat way, there isn't anything to 'fall towards' the fixture. You'll need to staple the insulation in place (at a few points) so the insulation doesn't 'slide' towards the fixture.
My best to ya and hope this helps.
Jay J -Moderator
PS: There should be info that comes with the fixture (in the box) that talks about IC and NIC rated fixtures. If not, get it from the Retailer ...