Works very well to eliminate flying insects in our porch and backyard. We live in the country and have a lot of land so I was glad that they have one powerful to take care of 1.5 acres. Now we are able to enjoy our newly refurbished porch without being assaulted by mosquitos and nats. In order to eliminate mosquitoes, you should also order Flowtron MA-1000-6 Octenol Mosquito Attractant Cartridges, 6-Pack. The light by itself does not get the mosquitoes well so the mosquito attractant complements the light. The mosquito attractant is set up to fit well in a special area below the light. I feel as if we have our beautiful backyard back again!