This product saved our deck! -- yellow jackets were getting into our lights - after installing them the yellow jackets could not get into the light to make their nests.

I received these light covers a few days ago and have already painted and installed them. While the installation was fairly straight forward, it would have been nice to have a template that could be used for better positioning and marking the holes.

These install really easily. When we put in the down lights on our soffits bugs immediately became a problem all summer long. Once you've got bugs, you get spiders and/or birds, and your nice lights look like a bug graveyard.

These have an open grill on the face of the light. I assume this is to allow for airflow if you're running incandescent or halogen lamps. I'm curious to see how well the grates keep out all bugs or if they allow some small ones in.

So far, after a month, they've kept everything out.

Last year I replaced the bulbs in my external recessed lighting fixtures with external LED bulbs. That means there was little heat to discourage the wasps from crawling past the bulbs to get into my house attic area. I purchased four of these light covers to install over the exterior recessed lighting to keep the wasps out. Two sets of two.

On three of the four sets, the screen part was correctly installed in the trim plate. The screen was loose for the fourth set. It took a lot of force and a few minutes to install it. The trim place fits into the mounting ring and is then turned to lock into place. None of the four seemed to lock into place. In fact, I could not even turn three of the four to the end of the mounting slot. I worry that the trim ring and the screen may come loose and fall to the ground. So far, they have stayed in place for two days and one thunderstorm. I will update this review if they ever do come loose.

My house has permanent siding and sheet metal soffit (or overhang) vents with lanced holes in every other section. To install the mounting ring around the recessed lighting fixture I had to drill three 7/64 inch holes into the sheet metal. I then used the provided screws with my screwdriver to secure the mounting ring. I used masking tape to hold the mounting ring in place while drilling the holes.

If you look at the picture you will see that the sheet metal soffit has a U area that goes under the trim plate and screen assembly. I worry that the U is large enough to allow an insect (or wasp) to still get to the bulb. My hope is that the screen comes into contact with the existing trim and prevents that. I can say that last night when I inspected these after the light had been on for about an hour that a bug had gotten past the screen. It could have been trapped in the attic when I installed these two days ago, or it could have been small enough to get through the screen. The bug was not there when I looked this morning.

09/08/2016 Update: It has been a few months since I installed these. I have had to clean the light cover next to my front door to remove wasps twice now. I am sure that the wasps were coming from inside the house. (There have been no bugs in the last two months.) All screens have stayed in place. In fact the one next to the front door now locks in place when it did not at first. I have only had to clean the one cover so do not know if the others would lock into place or not. Based on how things are going I have decided to increase this from 4 to 5 stars.

I have a full covered front porch with outside can lights. Every year when the warm weather comes we have tons of wasps that make nests in the can lights and we have to dodge the wasps when we are on the porch. Saw these and figured might was well try them out. After cleaning out the can lights of all the old wasps nest, my husband installed which was very easy and quick. I have not seen any wasps around on the porch hanging out by the lights now so they seem to be working. Very happy with these covers and they look very nice.