WBM International home mosquito killer Bulb instantly kills mosquitoes and makes your home mosquitoes-free. WBM Mosquito killing light bulb, A relatively new form of mosquito and flying insect zapper is designed to fit in a standard light socket. The user selects an appropriate overhead or lamp socket, and the “lightbulb” does the rest. Visit WBM International Pakistan for Best Mosquito Repellents Products.