Review on Bug Zapper Light Bulb: 2 in 1 Mosquito Killer Lamp and Fly Zapper - Safe, Silent, and Effortless Pest Control for Indoor and Outdoor Use by Kenneth Seymour

It's so much cheaper than the others I thought it couldn't work. It has multiple modes that you can control by turning it on and off. I leave it in zip-only mode as I don't like the color of the bulb, but I included a photo just before I brushed for the third time. He just introduced that on our screened in porch. We don't have mosquitoes here, but a few small flies do get through. It only seems to kill a species that is strongly attracted to the light. There are no tiny black ones that just float around and stick to the walls.