Compatible With this 40W replacement bulb suitable for K15, T9, X3 bug zapper outdoor. Product Size: 12'' x 1.8'' x 0.94''. Please confirm the size of the original bug zapper model before purchasing Attract Mosquitoes and Bugs: our bug zapper replacement bulb is designed with U-Bent bug zapper bulb with square 4 Pin Base, 360-degree beam angle and power consumption. Attract mosquitoes from your living area without the use of pesticides or chemicals Using UV Light as Bait: this ultraviolet mosquito killer lamp emits blue light with a wavelength of 365 nm, and uses the insect's vision to have high-sensitivity THW properties in the UV range of 350-380 nm, simulating radiating light with similar properties to trap and kill insects Competitive Performance: our bug zapper light bulb is made of quality glass tube and earth phosphors. You will receive 3 piece of U-Shaped bug zapper bulbs, with a service life of up to 7,000-8000 hours Widely Use: our UV light bulb replacement are available for your home, garden, backyard, dining room. Warm note: please unplug the device before replacing the bulb and let it stand for 2 hours to allow all the power in the device to dissipate before replacing it 12'' 40W(BF-150) Fluorescent Replacement bulb Compatible for Flowtron: Flowtron BF-150 BK-40,BK-40D,BK-40C;BK-80D, BK-50C,BK-80C FC-2600;FC-7800; FC-8800;FC-4400; FC4410; FC-4800; FC-4810; FC-4700; FC-7200; FC-7600 GL-4300B; GL-6050B,GL-2400, GL-2600,GL-2400 PM-2040A; PM-2080; MC-9000 Flowtron 1 1/2 Acre Model 15060, 14044 Compatible for : Black- Flag BB-40WHT Stin-ger U/V40 Kindly Remind:This bulb is not manufactured by Flowtron , Black- Flag or Stin-ger Specifications: Material: glass tubes, rare earth phosphors Dimensions:12'' x 1.8'' x 0.94'' Wavelength: 300 - 460 nm Quantity: 3 pieces Package includes: 3 x 40W Bug Zapper Replacement Bulbs Notes: Please check and confirm the bulb size fits before purchasing.