31/08/2026
ASK A TRADIE ⚡ How does a sensor light actually detect movement?
We asked qualified electrician Jarrad to explain it.
Sensor lights detect changes in infrared heat. So when a person, or even a pet, moves into the sensor’s range, that change in body heat can trigger the light to switch on.
Simple tech, but very handy for driveways, entryways and outdoor areas around the home. 💡
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