"Butterfly" chooses brand-name products which are strictly certified by CE to ensure that the peak wave reaches 365 nm with strong trapping function. Save money compared with importing consumables! At the same time, there is quality assurance! You need to understand that the service life of fly-killing lamp tube refers to its effective life of trapping mosquitoes, flies and other flying insects, rather than maintaining its constant brightness, which is the main difference between fly-killing lamp tube and fluorescent lamp tube. It does not emit blue light to trap flying insects. At present, there are some problems in the market, such as the use of ordinary fluorescent lamp tubes, or the use of medium and low quality fly-killing lamp tubes. Although the ordinary fluorescent lamp emits blue light, it has no trapping function at all. It can only attract the flying insects by the habit of gathering light of the flying insects, and the trapping effect is very poor. Medium and low quality fly-killing lamp tube has short peak life. After two or three months of use, the trapping function decreases rapidly until it loses its trapping function.