How Long Do Outdoor Motion Sensor Lights Stay On?

When it comes to motion sensor lights, one of the biggest questions is how long do they last? Motion sensor lights are a great way to provide lighting outside and can help deter potential burglars or other intruders.

The amount of time they remain on can vary depending on the type of motion sensor light, so it is important to know what to look for when purchasing one.

Passive Infrared Motion Sensors

Passive infrared motion sensors (PIRs) are the most common type of motion sensor light. These lights detect changes in heat and movement in their field of vision, usually within a certain range. They are typically set to stay on for between 30 seconds and 5 minutes after detecting movement.

Ultrasonic Motion Sensors

Ultrasonic motion sensors emit sound waves that bounce off objects in their field of vision. These sensors detect any changes in the sound waves that come back and trigger the light, usually staying on for between 10 seconds and 2 minutes.

Microwave Motion Sensors

Microwave motion sensors use radio waves instead of sound or heat to detect movement. Like ultrasonic sensors, these sensors detect any changes in the waves that return from objects in their field of vision and trigger the light, usually staying on for anywhere from 10 seconds to 3 minutes.

Conclusion:

The amount of time that outdoor motion sensor lights will stay on varies depending on the type of sensor used. PIRs typically stay on for 30 seconds to 5 minutes; ultrasonic sensors usually stay on for 10 seconds to 2 minutes; and microwave sensors usually stay on for 10 seconds to 3 minutes.

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Chris Powell