GE LED+ A19 Dusk to Dawn LED Bulb effortlessly blends security and style by automatically brightening your surroundings from dusk to dawn with warm, soft white light (2700K), helping to enhance security around your home. No app, WiFi, hub, or scheduling required; just screw into any E26 medium base socket, ensure the built-in light sensor is exposed to ambient light, then turn on the fixture and the bulb automatically turns on when light is needed and off when it is not required. With its long rated life and low-energy use, this medium base light bulb helps you enjoy years of dependable performance without worrying about frequent replacements. Replace traditional lights with the GE LED+ Dusk to Dawn Light Bulb for lighting that automatically turns on at night.