The black inspection tube is made of blue-black glass, and the inner tube wall is coated with phosphor. The uv black light lamp are coated with special blended phosphor to emit radiation peaking at 365nm. Adopting good-quality raw glass material and special prepared mosquito alluring powder, and radiating special wave of 360nm length. Making use of the characteristic that insect eyesight has maximum sensitivity within ultraviolet area of 360nm, and simulating to radiate a ray with similar characteristic, then alluring and killing them; Matching with uv black light tube fixture in family, dining room, farm and birdhouse and so on.