These lights serve their purpose - not very bright but good enough to light the area around our trash cans, All four worked right out of the box but one of them never worked after that first night. I've been trying to find out how to contact the seller for a replacement but was unsuccessful. So, based on a 25% failure rate within the first 24 hours, I wouldn't recommend this product.These are lasting from dusk to dawn after a full day in the sun. Well sealed so not affected by rain. Good price.Great for our pitch black deck!When the package arrived, it appeared it had been a return item. The plastic housing on a couple of the lights was scratched, and one light failed to charge. The “pull-out isolator tab” on that unit had already been removed. Consequently only 3 out of 4 solar lights are working, hence the 2 star rating. Otherwise, I am satisfied. They provide a good amount of light and fit nicely on the metal railing in my lanai.These do work well and stay lite all night long. We live in Colorado so they do get sun almost all day. They are easy to install and so far we haven’t had any problems and they have been up for several weeks. We have them all on the fence post and the top rests on the post. During the day, they blend into the fence and you wouldn’t even know they are there. We have another set as well and those are a little brighter than these. I love you don't need to worry with wires and using electricity. Once you buy them, there are no additional cost. They are weatherproof because they been in snow and rain and nothing has happened to them.These are plastic solar lights for a nice price. They feel cheap and lightweight, but they do work. I placed these along my fence, and they are the perfect small size. And they put out just the right amount of light.Nice Lights. Easy To Install. Great Price. Thank You.Perfect for the spa stairsI guess it's my fault for not measuring the size. For stairs it's ok, you get light if it's 6 inches from the surface.