i bought one last year it goes on at dusk but shuts off in about 1 hour comes back on then shuts off. all nite long
1371315
Too many varibles??? Defective, Car Lights from somewhere, Ambient Light, Larger than 35 Watt Bulb....on and on....Sorry no GOOD Answer.
1371316
Any of the previous reasons could be the problem. Contact Cooper Lighting for a replacement, it has a 2 year warranty.
1712457
Mine goes off once it is very bright outside. It stays on well after dawn. It stays on when it is bright enough to read a newspaper right next to the sensor, adjust sprinklers in the hard, drive a car without lights. I emailed customer service about this issue and their answer was: "There are no adjustments to the photo sensor, if the sensor is located under the eave it is possible that it's not receiving enough ambient light to turn it off. Try installing some reflective or mirrored tape close to the sensor to see if that will direct enough light to the sensor to turn it off." I am going to try the tape, but it does not work as promised, and it is an expensive unit. Not happy. Mine goes off once it is very bright outside. It stays on well after dawn. It stays on when it is bright enough to read a newspaper right next to the sensor, adjust sprinklers in the hard, drive a car without lights. I emailed customer service about this issue and their answer was: "There are no adjustments to the photo sensor, if the sensor is located under the eave it is possible that it's not receiving enough ambient light to turn it off. Try installing some reflective or mirrored tape close to the sensor to see if that will direct enough light to the sensor to turn it... » Read More Mine goes off once it is very bright outside. It stays on well after dawn. It stays on when it is bright enough to read a newspaper right next to the sensor, adjust sprinklers in the hard, drive a car without lights. I emailed customer service about this issue and their answer was: "There are no adjustments to the photo sensor, if the sensor is located under the eave it is possible that it's not receiving enough ambient light to turn it off. Try installing some reflective or mirrored tape close to the sensor to see if that will direct enough light to the sensor to turn it off." I am going to try the tape, but it does not work as promised, and it is an expensive unit. Not happy. « Show Less
2052710
It won't come on in daytime unless you cast a shadow over it. I am very satisfied with mine. No luck with battery units, so this is great- a bit of electric, but works as stated.
336870
I believe the light comes with a small pin, and possibly a small piece of clear plastic inserted near the battery. You need to pull the plastic tab out so the battery makes contact with the light. Then insert the pin into a small hole in the light near the sensor and hit the on / off swith to the on position. Place the unit in the sun for several hours and see if it comes on at night. If it does not, hit the switch again. There is no way to tell which is on or off, so its kind of hit and miss. Good luck
2140282
it automatically goes off when the daylight comes on and then on when it is night
202554
I've purchased 4 total and never had a problem, it just has to be dark. You could place your hand over sensor to make it dark, to make sure, otherwise prob faulty
1851937
Mine turn on by themselves whenever it gets dark enough. If it is dark outside they should be lighting up on their own.
944988
hopeless, mine is the same but does not go out until you switch it off, serious rubbish. have purchased Osram dusk to dawn screw in lamp(bulb) works fine
944990
Similar issues - the sensor needs direct sunlight in order to turn off. Late in the day is probably when the sensor is getting the most sunlight. My sensors didn't work at all.
23391
They can not be set to come on at night automatically, I turn ours on at dusk and off at daylight.
1484524
Funny you should ask about "always on". I bought and installed two of these. One is on all the time dawn to dusk no matter how I have it set. The works sometimes and others it is also on dawn to dusk. I do NOT recommend these lights.
77644
Turns on at dusk and off at dawn. Of course you have to set up the timing. It's a great product. I should be purchaing two more of the same in a week or two
1556811
Try the dusk to dawn sensor! Cover it with a piece of duct tape and see if the light stays on and does not strobe. The reason is there may be an ambient light source near or close by affecting the sensors ability to work properly. I had this problem when I hung icicle lights up for the kids.
1412220
I start mine about 10 PM and it will run all night and shuts off around 7 AM. Hope you enjoy yours as much as I do mine.
1615911
It works thru the night for a few months then it turns on intermittently. Some don't turn on at all anymore.
2182540
It is motion sensor activated so it won't stay on solid from dusk till dawn but it does have a a light sensor that completely shuts it off during the day time.
1371025
Dusk sets it off for 2 1/2, 5, or 8 hrs. Or you can set it for dawn to dusk