A. Includes 2 Fsl Bl T8 F10W Spare Bulbs For The Electric Fly Killer. The Total Length Of The Tube Is 345Mm, Diameter 25Mm. B. Function: The Main Wavelength Is 365Nm - Used To Attract Small Pests Such As House Flies, Mosquitoes, Moths, Etc., With Good Trapping Effect And Energy Saving. C. Compatibility: Replacement Bulbs For Aspectek, Eazyzap, Fly-Bye, Plus Zap, Flymatic, Xterminate, Vermatic, Etc. Suitable For Most 20W Insect Repellents. D. Safety: Uv-A Is Harmless To Humans And Pets And Is Widely Used In Living Rooms, Dining Rooms, Kitchens, Storerooms, Bathrooms, Etc. Foods, Corridors In Front Of Doors, Etc. E. Reliable: All Products Will Be Tested Before Packing And Have A One-Year Warranty. If You Have Any Problems With This Product, Please Do Not Hesitate To Contact Us.