The Blue Light Rechargeable Insect Killer uses ultra-violet light to attract flying and biting insects into an electrically charged grid, destroying them quickly and hygienically. Dead insects are collected in the sliding tray at the centre of the unit for easy disposal. The built-in rechargeable battery makes this unit ideal for use in outdoor areas. And for continuous indoor use a mains adaptor is included, enabling easy set up. Replacement UV lamp available Maplin Order code A41FT.