Does the sensor work in the dark?
1155498
When it works at all, it works in the dark. It picks up infared.I have it set up in the driveway of my business so I get to see it work all day. Misses a lot of cars, and does a lot of false alerting with nothing around.
1155499
Sure, without a problem. I had to narrow the beam so it would only catch anyone crossing past my front driveway, and it works no matter what, rain or shine. it does not go off do to rain either. Only birds, dogs sometimes, and people. But I've been happy with mine.
831934
The answer is yes. Think of this just like a light at the end of your 3 way circuit. If the light would turn on then the sensor would also be engaged. The light (down stream) from the sensor will be on as needed when the sensor detects motion and no daylight.
1719857
No it does not work like a motion sensor. It does have a light sensor so if the lights in the room are on the nightlight will turn off. The nightlight will also go off if the sensor is blocked by people walking by it. I would really like to find a nightlight that would only come on when you are near it.
144856
It has a daylight sensor as well as a motion sensor so it only comes on when it is relatively dark.
2279185
I haven't tried it, but I think it would work at dusk or in the dark, as long as your distance isn't too great... Remember, all it does is give you a level -- You would have to measure vertically from the laser line based on the height of the laser at the base.
1664174
You will only see red LED's when in a dark room. The sensor does not turn them on until it senses darkness. Additionally, your cameras needs to be 850nm to use this unit.
1131059
No, this is a motion sensing light meaning it turns on whenever it senses motion. It does not have any sensor related to if it is night or not. If you put it in a fixture that control whether it turned on if it was night or not it would likely work but the bulb itself is only motion sensor meaning it turns on with motion and turns off after around 60 seconds without motion.
859689
Yes. But the buttons are small and you need to learn the locations. I am fair at operating it in the dark.
162795
Remember this is dusk to dawn light.. the light will not trigger ON during the day but Its on nite time if the sensor is triggered.. Hook it up to ON and OFF switch, turn on the switch and leave it ON..
576301
No. There is a small red light that is on the sensor. It blinks when activated. No visible light like a night light,
1712458
The sensor should cause the light to go on at dark and off in the am. I can only guess that there is a problem with the sensor.
1942402
I don't think so. My guess is that if the sensor is blocked by the fixture, the light would always be on; if it is NOT blocked, the fixture's reflector may reflect light back on to the sensor, thus turning it off and on repeatedly at night. The bulb is designed to operate with a relatively unobstructed outside view. They work great for me in light post and wall mount carriage house-type glass and metal fixtures.
1059316
Yes. If you turn the light off manually it will not immediately respond to motion to turn it back on, but after a minute or so it will resume the motion sensor function.
2007415
No, it does not have a light sensor. You have physically turn it on and off.
1494216
It has a light sensor that requires it to be relatively dark before it will light up when a motion is detected. Mine will not light up in broad daylight, but I am not sure how dark it needs to be to light up . Hope this helps.
2181000
Yes there is a sensor but it may not turn off on dark/cloudy days. Not an issue with this LED light. Electricity use is minimal.
307233
There is no light sensor, unfortunately. So, as the days become longer, I have to change the time that it comes on. I hope that answers your question.