Using the latest technology, this fixture has a built-in light sensor which detects the light intensity and turns on the bulb automaticallt at dusk and turns it off when it's dawn; helping to save you the trouble of manual controls. Feit Electric LED A19 Light bulb provides up to 85% energy saving by replacing 60W with 8.8W; replace your old incandescent bulbs for a brighter and more energy-friendly home. This 5000K color temperature simulates full spectrum light; providing an energizing crisp white light for any room, Lasting 10 times longer than incandescent and halogen bulbs with a lifespan of up to 10 years, eliminating the need to constantly change your light bulbs. No warm-up time for these bulbs; they will light up instantly with its full brightness of 800 Lumens with stable soft white color. UL listed and FCC compliant, Feit Electric upholds the highest standards for all our light bulbs, fixtures and string lights with optimal performance and safety; with 40+ years of experience in lighting, we are the leader in lighting innovations.