The light bulb comes with dusk to dawn sensor ensuring energy saving, it will automatically turn on at night and automatically turn off when senses light source with a certain brightness. The bulb gives off a good mount of cold white light with total 850 lumens. Adopts eco-friendly materials, no need to worry about producing harmful substances, offering optimal lighting effect for staircases, door entry or other outdoor locations, etc.. Furthermore, LED bulb has long lifespan up to 50,000hrs and is compatible with standard E26/E27 bulb socket (not included), which will also bring convenience. Features: Built-in smart photocell, light sensor control, automatically turn on at night ( ＜20Lux ), turn off in daytime ( ＞35Lux ). Illuminate a bright night for you. With certain brightness, a considerate and energy- saving design. The bulb gives off a good mount of cold white light offering total 850 lumens brightness. Offers optimal lighting effect for staircase, door entry, bathroom or outdoors. Note: A shell case needed to use in outdoor. Adopts anti-flaming aluminum outer structure to ensure long time use. And the LED bulb has long lifespan up to 50,000hrs, avoiding frequently replacing bulbs. The bulb will automatically turn off at dark even when you are not at home, which makes it look as if someone is home, enhancing home security. It can be easily installed into the standard E26/E27 bulb socket, no wires or light fixtures needed. Note: This bulb is not water resistant; a lampshade is required when used outside.
