This is a Electronic UV Mosquito Fly Pest Insect Killer.Maintenance-free operation features UV light and an electrified grid that eliminates thousands of flying pests for just pennies a day. This Electronic Mosquito Killer utilizes specific light to attract flying insects. The insect/mosquito/fly will fly into an electrified grid and will be killed instantly. Free of any chemical refills. This Electronic Mosquito Killer can be used on the floor or hang it over the floor. If hang this UV Mosquito Killer on above the floor, need to hand it around 1m-4m high. Avoid bright light to shine on it to affect it effectiveness.This Mosquito Killer is suitable for houses, office, restaurant, ware house, garages, sheds, hotels, restaurants, gardens etc.