Environmentally-friendly: Harmless to your family, pregnant women, children and the environment - this is a quick, safe and efficient way to deal with pests! Versatile: Can be stood on a surface or hung up with ease. Wireless version with night light: Works continuously for 5-7 hours on a full charge, and has a glowing night light mode too! Standard version: A USB powered electric mosquito killer lamp. Zapper lamp: A 360 degree UV lamp with a high voltage shock for insects. Mosquito killer lamp: Keep mosquitos at bay with an electric lamp.