Product Description: Bonus replacement light bulbs included Stinger total home defense kit Two separate units, one for indoors and one for outdoors Lures and traps flying insects Attracting range up to 1/2 acre HOW INDOOR UNIT WORKS A 4-Watt ultraviolet light lures flying insects towards the unti. A hidden fan draws them into a concealed, non-escapable compartment in the middle of the unit. Once trapped, the insect dies of dehydration or can be safely let free outdoors. This insect trap lures and captures Mosquitos Moths Flies Fruit flies Bees Ladybugs and other annoying insects HOW OUTDOOR UNIT WORKS A 15 Watt ultraviolet light excites insects and lures them into the electric grid, where they are electrocuted and fall harmlessly to the ground. Outer enclosure prevents children, pets, birds and wildlife from contacting the electric grid. Made from high-impact polycarbonate, the stinger insect killer is durable and weather-proof, proven reliable for years of dependable service. Easy access to bulb. Bulb should be changed yearly for maximum effectiveness.