sensor light

Movement-triggered illumination

A sensor light is a light fixture that switches on automatically when it detects motion or changes in ambient light.

Most use infrared sensors to detect body heat from people or animals passing nearby.

Common at entryways, driveways, and security installations: The sensor light came on when I walked up the steps.

Also called a motion light.

Related

dusk · dawn · infrared · night vision · beam · security · security camera · porch · garage · automatic · trigger · illuminate · glow · bulb · intruder · pathway · darkness · switch

Categories
Opposites
activation method

sensor lightlight switch

Wall-mounted illumination control

technological sophistication

sensor lightcandle

Wax stick with wick

oil lamp · kerosene lamp · torch · gas lamp · lantern

Family

sensor, light, sense, sensors, lights, sensory, sensation, sensational, sensitive

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G