Boxlood E27 Dusk Till Dawn Bulb/ Auto On Off/ Security Lighting. Boxlood dawn to dusk light bulbs are equipped with photocell/ twilight sensors. AUTO ON/OFF & PLUG AND PLAY: These dusk to dawn A19 LED light bulbs are equipped with a built in light sensor that turns the lights on automatically when the sun goes down and turns the light off when the sun rises, Suitable for indoor or outdoor use, these bulbs have standard E27 base for most light fixtures( works great in an enclosed fixture with clear or frosted cover ).
