Usage Tips:[Fit Models]: T8 10W replacement bulbs for Aspectek, for Liba, for Micnaron, for Lulu Home most 20W electric bug zappers; Please measure and confirm the bulb size of the your bug zapper before purchasing [365Nm Wavelength]: Use a peak wavelength of 365nm ultraviolet light because bugs are particularly attracted to light in that range; This specific wavelength falls within the UV-A spectrum, which is known to be highly attractive to mosquitoes and other flying insects [Long Lasting]: Long lasting bug zapper replacement UV bulbs, more than 3000 hours, in order to achieve the best working effect, it is recommended to replace the T8 10W UV light bulbs in about 3-4 months of continuous use [Bulb Size]: you will receive 8 pack bug zapper bulbs; Bulb size: 13L x 1W x 1H inch, total length including pins on both sides is 13.5 inch; Wattage: 10W Different batches may have different printed words, which will not affect the use Color: As Shown Material: Glass Package Contents: 8 x Bug Zapper Light Bulbs