Make sure you do not snag any wires that may be in the ceiling cavity.
Installing recessed lighting trim.
Cut the hole with a drill with a hole cutting attachment and mark all light locations.
Position a stepladder for access to the recessed light fixture where the trim will install.
Hold the trim in.
How to install recessed lighting trim.
Looking at the upper face of the trim that fits.
Remove the light bulb from the recessed light if one is installed and set the bulb aside.