Very happy with this solar security light. I put it on the back yard fence, and although it doesn't get sun all day (most of the day), it still lasts all night. I went out to check it at 3 am, and it was still going strong. It's very lightweight, so I don't have to worry about it falling due to the weight of the unit.
I do have one criticism, but it's for the instructions. There is a sort of bubble coating, on the solar panel, and the instructions should say whether it is supposed to come off. Since it didn't come easily right away, I searched everywhere on the web to find out if it was supposed to. It took me an aggravatingly long time to find out it's supposed to stay on. Even googling it, said it was supposed to come off, I'm glad I kept looking for a primary source of information. Maybe it's dumb, but I've never bought anything with a solar panel on it, and it would have been completely ruined if I had taken it off.
It's very bright, and lights up exactly how and when it's supposed to, and the red light can act as a deterrent. I feel safer with it, I'm glad I have something that doesn't need a wire to protect my back yard. I love it!