The best outdoor bug zapper offers a convenient, safe, and effective way to kill flying insects. Unlike pesticides, they do not produce toxic fumes that can be dangerous to your health and to the environment. In addition, they are cost-effective because you only buy them once.They do not need replacement, given that they are either rechargeable or powered by dry cells. Furthermore, outdoor bug zappers are versatile; hence, they kill all kinds of insects, including mosquitoes, gnats, ladybugs, fruit flies, horse flies, bees, wasps, and more.