Think of the Downlight Mitt covers an insulation batt for downlights. 5% gaps in insulation can reduce the R-value performance of your insulation by 30%. LED electronic components are more susceptible to premature failure when they are completely submerged in insulation. IC rated fittings can still prematurely fail when submerged in insulation. The Downlight mitt products, give the LED’s some air to breathe with. This video also shows you how to install the downlight mitt downlight cover.