The Flea Trap works by catching adult fleas that are looking for a pet to infest. The light, heat and infra-red rays from the light bulb are strong attractants for fleas. The fleas jump on the sticky pad. Catching one female flea may prevent 200 or more eggs from being laid. The flea trap will reduce the number of fleas where ever it is used. Under certain conditions, it will also eliminate other small insects. Note: Fleas on your pet are unlikely to leave and go to the trap. For better results, we recommend you use a flea comb or flea soap to remove fleas from your pet. Flea Trap by Spring Star features: