Flowtron BK-80D 80-Watt Electronic Insect Killer, 1-1/2 Acre Coverage High efficiency, non-clogging killing grid, Easy bulb replacement . Rugged, weatherproof construction; will not rust, crack or fade Operates for only pennies a day Unit dimensions: 11-inch by 11-inch by 18 1/2-inch NOTE : This product is for outdoor use only.