Outdoor lighting should be simple: lights should be on when the sun is
down and off when the sun is up. The Sense Light provides an elegant,
all-in-one solution with a revolutionary "sun-aware" sensor built
directly into the bulb. The Sense Light can be installed in any standard light bulb base
(typically called E27). Simply turn off your light switch, unscrew the
old bulb, install the Sense Light and power on.
Read more about why LED’s are worth the switch click here