Do sensor lights only work at night?

Similarly, you may ask, do motion lights turn on during the day?

When paired with motion detectors, photocells keep lights off during daylight hours. They work as security lights in the evening, turning on when they sense motion after dusk. You can also adjust these fixtures to allow the motion sensors to work all day.

Secondly, how do motion sensor lights work? Motion detectors are small electronic eyes that detect infrared waves—heat waves that radiate from moving objects. The motion sensing light stays on anywhere from 1 to 20 minutes, depending on how you preset the timer. Then the detector automatically shuts the light off unless it continues to sense movement.

Also question is, why is my sensor light not working?

If the light won't come on after adjusting and cleaning the sensor, try a simple trick. Turn off the circuit breaker that controls the light circuit and leave it off for 30 minutes. If the light doesn't come on when you turn the breaker back on, try replacing the bulb. If that doesn't work, the sensor may be bad.

Can motion sensor lights be set to stay on?

4 Answers. Most motion detectors have a built-in override: If you turn the switch off and on within a second or so, the light will stay on, and this overrides motion detection. To go back to normal operation, turn the switch off and wait ~10 seconds, then turn back on.