I purchased 17 of these for my new trex deck - after searching the web a bit, these appear to be the only option available for solar trex post caps with any reliability. The process to connect the batteries was not easy for me (older eyes)- 6 screws to undo and then redo (X 17) plus the clear plastic connectors were stiff and didn't connect easily. Almost half of mine did not light up first try, so I set them aside, later undid connector, and re-connected and then they worked fine. It took all day one day to get these ready. Then there were issues with the magnets for me also. I preferred the amber color so it was a lesson in patience to cycle through white, then blue to get to amber. I tried a big blob of magnets together but what worked for me was just 1 or 2 of the magnets - the challenging part was to move the magnet around the pad until you see a flicker - that's when you know you have the right spot to change colors; then you have to steadily hold magnet until it turns blue, and then amber. All this magnet work has to be done at night. It took me a few nights as my hand got tired lol. It's been 2 weeks now since I did all this. They all turn amber every night and look gorgeous. It is weird that they all turn on at different times, but within 20 minutes or so of each other.

I updated our deck with composite decking and Trex Transcend Railings. Trex does not offer solar post lights which I needed to update also. I ordered the Solar Post Cap Light made by Ultra Bright. The color matched perfectly to Trex post covers. I had read reviews by other customers and was interested in trying them. The pictures displayed were nice. The variable adjustment to the intensity and the 3 light colors is also a nice feature. I set the color to blue for the 4th of July and it gave our deck a nice COOL touch. Due to some shading on a few of the lights, I was concerned that all of them may not recharge. Wrong ! All do and stay lighted all night since I looked out early one morning plus a neighbor commented: "Your new lights were still shining brightly when I got up for work just before dawn." Great Lights and easy to install. Nice design.