Works in cold weather. The light stays on hot hours and hours. Great price for what you get! If I ever need more this is my go to product.

UPDATE: Below is the first review that I gave for the product & seller. The seller contacted me within days of my review and gave me an apology and a full refund. Very happy with their quick response & attention.
FIRST REVIEW: First off, I bought 12 in a pack. I received 11 and one of them didn't work so now I'm at 10. Secondly, they look and feel cheap and the light they give off is barely discernable. Waste of money.

They worked for a few months. Not very bright, but at least they were working, Then, one by one, they broke. The battery cannot be replaced and they don't have any warranty. Not worth it.

I have at least 20 different solar products and lighting and this one is the longest lasting. It stays on in dim mode, then when motion is detected a very bright light comes on and lights up about 10 feet out! This is a fantastic deterrent for security! My backyard was super dark, I added a bunch of solar lights, and I am thinking about getting another one of these. It is heavy so it sits on the cement wall perfectly, with no screws or adhesive. The light stays on my side of the wall and doesn't interfere with the neighbor. Highly recommend this light!

So far so good. They are working well. Let's see how well they are in a couple more months.

Overall we are happy with the lights. However, it would be helpful if the product came with a template to make mounting a little easier. Right out of the box all lights worked well. They provided nice lighting in our backyard by the pool. They lasted from sundown to almost morning, initially. Then they started losing time and within 3-4 months half the lights stopped working entirely. (the warranty is only for 30 days) I assumed it was the batteries. I just recently took one apart to check the battery and ordered replacements for ALL the lights. They also claim the housings are stainless steel, yet after four months there is rust showing. The battery housing is held together with very tiny screws, fortunately I have some precision ones that made the job easier. After my new batteries arrive and are replaced I may re-visit my review.