Includes 2 FSL BL T8 F10W spare bulbs for the Electric Fly Killer. The total length of the tube is 345mm, diameter 25mm.FunctionThe main wavelength is 365nm - used to attract small pests such as house flies, mosquitoes, moths, etc., with good trapping effect and energy saving.CompatibilityReplacement bulbs for Aspectek, EazyZap, Fly-Bye, Plus zap, Flymatic, Xterminate, Vermatic, etc. Suitable for most 20W insect repellents.SafetyUV-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.ReliableAll 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.