How it work: This bulb is build-in with light sensor component and control circuit, when in day, the external light is strong, it will not turn on the bulb. When the external light is lower than 20LUX, it will trigger the circuit and turn on the light, that is why it work dusk to dawn. When the bulb is on, the sensor component will not sense the LED bulb light, so it will work to dawn until the external light is higher than 30LUX. Advantages: *Automatic turn on at dusk and off at dawn *Rather than having to buy a new light fixture with a dusk-dawn sensor, this bulb is a better solution. *No more running down the stairs to turn on outside lights *Never forgetting to ever switching it off and having lights on all day long * Low power consumption, bright light, long lifespan Applications: Great for outside lighting: *Porch *Garage *Security light *Garden *Patio *Walkway *Driveway *Post light Tips: The bulb only turn on when external light is lower than 20LUX, if two bulb were placed two closed, their turn on maybe infected by each other.
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