This is the mosquito trap that captures and kills the insects within a quarter acre without harmful chemicals. It emits carbon dioxide (the same gas people expel during respiration) that is generated when ultraviolet rays from the internal fluorescent bulbs react with a titanium dioxide coating inside the trap. The carbon dioxide and warm UV light lures mosquitoes to the trap and an integrated fan traps them in a removable compartment where they die of dehydration. Unlike propane systems that require frequent refills or electrocution traps that release pathogens when an insect is killed, this model uses 3,000-hour rated UV bulbs and does not create harmful biological agents. Can be hung via built-in loop. AC plug. 11 3/4" H x 7 1/2" Diam. (1 3/4 lbs.)