T8 10W replacement bulbs for Aspectek, Liba, Micnaron, Lulu Home most 20W electric bug zappers. No. 97341-CHN-1; Please measure and confirm the bulb size of the bug zapper before purchasing. Uses a peak wavelength of 365nm ultraviolet light, which is highly attractive to mosquitoes and other flying insects; this wavelength falls within the UV-A spectrum. Long-lasting bug zapper replacement UV bulbs with a lifespan of over 3000 hours; for optimal performance, replace the T8 10W UV bulbs every 3 to 4 months under continuous use. Includes 10 pack of bug zapper bulbs; bulb size: 13L x 1W x 1H inches, total length including pins on both ends is 13.5 inches; 10W, color as shown, made of glass. Package includes: 10 x Bug Zapper Light Bulbs (variations in printed markings may occur). Light reflection and display differences may cause slight variations in color between the image and actual item. Measurement tolerance is +/- 1-3cm.