Using a fluorescent light to attract insects, a fan at the back of the unit then pulls the bugs in where blades cripple or kill them. They are dropped to the surface of the water to become naturally occurring food that fish love! Insects are a natural source of protein for fish. The Bug Lite Fish Feeder helps to keep this food source available for your fish. Easy to install on a pole in almost any body of water. Operates on household current (110 volt).