Bug Zapper for Indoor and Outdoor, 4200V Electric Mosquito Zapper, High Powered Pest Control Waterproof, Insect Killer for Home, Kitchen, Backyard, CampingBrand: Unknown Features: If it doesn't turn on try reinstalling the bulb because sometime it might get loose in transit. You can just tighen it can be on a flat surface, or use a ring to hang it on anything such as a tree or a wall covarage area is about 1500 square feet and you can use it for indoor as well as outdoor The internal grid and components are fenced with a ABS housing to prevent children and animals from touching 15W bulb and 4200V