Bug Zapper Light Bulb Size: 23.8 inches (60.5 cm) in length and 0.9 inch (2.3 cm) in diameter Why Choose Our Bug Zapper Bulbs? Superior Compatibility: We've specifically tested this bulb to ensure perfect fit and function compatible with Aspectek replacement bulbs and for numerous other popular 40W electronic insect killer models. Focus on Durability: Each bug zapper light bulb is rated for up to 5, 000 hours of continuous use. While actual lifespan may vary based on usage environment and power stability, our quality components outperform generic alternatives that fail within months. Plus, installation takes seconds Why pay more for brand name bug zapper bulbs? Our product delivers equal or better performance at a fraction of the cost, making it the smart choice for effective pest control