This Coby indoor bug zapper bulb 3.6 x 3.6 x 8.1 is an ideal solution to rid up to 500 square feet of annoying, pesky and irritating flying pests. Compatible with a variety of fixtures, this mosquito bulb 0.79 lbs. comes fully assembled to save you time, making it truly hassle-free. While this bug zapper bulb is ideal for indoors, its advised to place under a shelter if using outdoors for optimal benefit. Eco-friendly, non-toxic and chemical-free. This 5W bug bulb is outstanding for the home, office, kitchen and even hallway. Detachable collection tray and cleaning brush included for easy tidying. Includes a replaceable UV-A fluorescent light with a 1100V high voltage electric grid. Bug light comes fully assembled. ETL listed, ISTA-6Apackaging ensures safe delivery.