It is a low cost device used to detect a change in motion in its surroundings within.
Motion sensor gate light.
It is an electronic sensor that measures infrared ir light radiating from objects in its field of view.
Noma 110 degree aluminum motion sensor light features an adjustable motion sensor range from 10 39 3 3 12 m halogen twin lights with motion sensor of up to 110 made of durable plastic and steel construction with a white finish.
In this circuit pir passive infrared motion sensor is used which is used as a motion detector.
When any person animal or any object comes in the range of the sensor.
The circuit will automatically switch on the lamps lights of your main entrance gate at night only.
With their impressive detection range and wide viewing angle any movement or activity occurring near your home can easily be detected and this can also trigger the indoor lights to come on making break ins less likely.
The light is powered by bright leds that will last for years and save energy and the motion detector can sense motion up to 70 feet away making it ideal for those with larger yards.
Ideally suited as outdoor motion sensor lights as well as indoor lights they are a great way of preventing break ins or helping to light the path.
Amir upgraded version motion sensor light cordless battery powered led night light stick anywhere closet light stair lights wall lights for hallway bedroom kitchen white pack of 6 4 4 out of 5 stars 3 886 21 99.
Plus it s marketed as easy to install by diyers.
Here is a very interesting and useful project of a motion sensing main entrance gate night light circuit.
Motion sensor flood lights outdoor 10w induction led lamp ip65 waterproof spotlight 6500k led sensor light security light with us 3 plug daylight white black 4 4 out of 5 stars 437 15 99 15.
Then automatic light switched on.