This electronic bug zapper utilizes a high-efficiency blue light which is proven to be the most effective lure for flying insects during the day or night. Creates a practical, efficient, hygienic and automatic electronic insect extermination system. Simply plug the bug zapper into an electrical outlet to attract and exterminate all flying and crawling insects. It is scientifically designed to operate smoothly yet plastic shield protects users from touching the unit. Harmless to humans and pets kills every flying insect that comes near. High efficiency with low consumption. No chemicals, fumes, or smell.