Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Is this item truly a "only comes on a night" with a light-darkness sensor on the light unit? Or something else?
Document: Sadly this item doesn't work as advertised. Inconsistent, poor lighting performance, after a full day of unobstructed daylight the lights come on for a few hours, they are rated to stay on all evening but never have. I have been struggling with unit for months and have given up.
This unit provides ample light, although a slight bit blue. Easy to install and does just what it should. Better than the Home Depot unit it replaced
I've had this unit for about one month and haven't touched it since setting up on my lawn. The light is satisfactory given the size of the panel. A good buy.
Bought this product about 1 year ago. Mounted above walkway at roof line. Works perfectly. Motion detector turns light on when someone enters it range. Bought a second unit. Excellent product.
My father in law loves it and it gives us peace of mind. I would purchase this item again and recommend it
This light is very dim. I did not realize it was only 120 lumens. I left the solar panel out to charge for 2 days prior to testing. If you only need very little light then this is OK. If you need it to actually light up an area, you will still be in the dark, just not total darkness. Glad I also purchased 2 Cooper floodlights at the same time, will return this.
The unit stopped charging and gave no reason why. The adapter was putting out the correct voltage but I had it charging for days and nothing worked
It doesn't stay on but just a couple of hours. I expected it to stay on longer than that. I need a light that will stay on most of the night.
Would be good for a small area, maybe back patio table light. Maybe its the time of year and its not able to hold a charge all night but it works for a little bit and shuts down.
And I have the panels just laying in the roof gutters, I bought two, less than ideal mounting locations, but still get 7-10 hours of bright light every night. GREAT product
Answer: no