This re-chargeable emergency light bulb turns on even if you lose power; keeping you prepared with up to 3 hours of reliable lighting during a blackout or power surge. Simply press the On/Off button on the bulb to utilize the 3 hours of lighting without power; can be used in a light fixture, or out of the fixture the bulb will stay on with the touch at the base similar to a flashlight. 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. With this 2700K color temperature it is the warmest option that most closely resembles a standard incandescent blub; giving a warm and cozy feeling and is often best for kitchens, laundry rooms, living rooms, dens and bedrooms. 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