The Genus Fli Fly Light is an Insect Light Trap, meaning the UV light attracts flying insects and the insects are trapped on the glue board inside the unit; this is not a fly zapper. Light bulbs are generally replaced annually in the Spring for best results.
You will replace the glue board of the Genus Fli Fly Light when completely full (timing can vary depending on the level of activity).
The Genus Fli Fly Light could potentially attract mosquitoes if they are in the area where the light is placed, but this is not usually the most effective method of mosquito control. Please take a look at our Mosquito Control Guide for more information on the treatment and prevention of mosquitoes.
Flylights such as the Genus Fli Fly Light are not designed to be used outside as there is too much competing light from the sun. They work best inside.