The inventor of this product did build a better mouse trap. Installation was easy, about 5 minutes per light. The plastic pieces fit very snuggly together. I used some Q-tips and silicone spray to apply to the plastic parts that slide on one another. Don't spray the whole thing, just dip the Q-tip into a small puddle of silicone spray and apply with the Q-tip. Took a little time but made final assembly very easy. The final installed product looks like original equipment and the plastic screen really doesn't cut down on the light output. Would buy again!

We had wasps build a nest inside one of our outdoor recessed lights. After clearing the nest out, I bought and installed these. Very simple, just fasten the mounting ring with 3 screws, then push the cover on and rotate it to lock it. You do need a surface which can accept screws around your lights, but usually that's not a problem. To change the bulb, just rotate the cover counter-clockwise and it comes right off.

The cover is a fine mesh, which should block insects without increasing trapped heat with incandescent flood lights. With compact fluorescents or LEDs, heat is a non-issue.

Near as I can tell, there's nothing else comparable on the market. It's this or live with wasp nests. Fortunately it's reasonably priced and works well.

Pro: goes up with 3 screws fast and easy. Blocks the wasps from nesting. Cons: Getting it centered and what material are you putting the screws into. I was against sheet rock so it did not fit snug all the way around. Tiny gap that wasps won't get through but I see it and I'm picky. Technically speaking the cons were all about my skills.

I like how easy thos was to install.
It is ever so slightly to small to go over my light cover, but I was able to make it work.
Looks nice and I did it quickly!
Great American product!

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 plate 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.