BestChem ‘XL’ Mosquito Trap is the largest mosquito trap in our line of mosquito traps. It has two UV fluorescent bulbs that produce heat and light to attract mosquitoes and biting insects into the net of the mosquito trap. The titanium dioxide coated reflector and protective screen produces carbon dioxide luring the insects to the powerful vacuum fan. BestChem ‘XL’ Mosquito Traps are heavy duty, powerful and highly effective in reducing the mosquito menace in your backyard and garden. Suitable for both indoor and outdoor use.