On Monday, April 19, 2021 at 10:25:26 AM UTC-5, wrote:
We are installing can lights in the ceiling on the 2nd floor of our house where there is about 6" of blown insulation.

I'm installing the thin LED type of fixtures but even for them I want to keep the blown insulation away so that it cannot potentially infiltrate into the living area. I plan to use plastic planter saucers and caulk them to the top of the ceiling.

Something like this...
https://www.amazon.com/GREGICH-Plast...dp/B08PYWTJTK/