Famous Caulking Outdoor Light Fixture References. Caulking your exterior lights helps prevent water infiltration that can damage your lighting accessories. By sealing your exterior lights, you will improve your home’s airtightness and quality of life.

Upgrading your exterior light fixtures is easier than you might think and only takes about 20 minutes to do! Presidents day and labor day often have special sales events. Web step 1 clean the area around the light with a damp cloth.