【Dusk to Dawn Sensor】: With a built-in light sensor, the A19 light bulb can automatically turn on at night and turn off during the day by detecting sunlight exclusively, rather than other light sources 【Easy Installation】: Simply screw the sensor LED bulb into an E26 socket and tighten it securely - no complicated installation procedures required. The sensor LED bulb is able to function seamlessly in lighting fixtures that mustn't obstruct the light. Package Content: 2 bulbs per box 【Energy Efficiency】: Replace 60 Watts incandescent bulb by 7W LED light bulb, less energy than traditional incandescent lamp, lasting about 15000 hours, saving energy and your cost. Low heat dispersion and high lighting efficacy 【After-sales Service】: The premium quality is guaranteed with a 2-year warranty, 100% satisfied service with replacement for quality issue. 30 Days Money Back and 36 Months Replacement for any issues. 【Wide Outdoor Application】: Suitable for a variety of outdoor locations including but not limited to: gardens, driveways, patios, porches, entrances, yards, garages, alleys, and pathways. With its automatic on/off functionality, it is ideal for areas where illumination is desired during the night and low visibility hours