12 Pack Solar Post Lights Outdoor - 20LM Waterproof Solar Fence Cap Lights with 2 Light Modes - Fits 3.5x3.5in 4x4in 5x5in Wooden Posts - Solar Powered Deck Lights for Garden, Patio, Pathway, Fence & Backyard Decoration (White)

Created October 1st 2021Attached picture shows two different types of lights. This review is accurate for both.We ordered four styles of lighting for our deck so we could really see what we liked. Amazon offers free returns so it's a no-brainer to try them before fully committing.The lights that this review is attached to are of normal build quality compared to other lights we have seen or purchased in the past. Their stated weather resistance is probably accurate as long as they are mounted as the directions say. Only time will tell.We like the style of these for our needs.These come with one AA rechargeable battery installed on each light. We tried these for a few nights and found that they quickly became too dim too soon. Ideally lights like this should stay on from when they get activated by lack of sun or light and stay on, full brightness until the sun shines bright enough to switch them off.I thought about returning them but realized there are no others we wanted and didn't expect replacements to be any better.I ordered rechargeable AA batteries. Specifically Amazon Basics 24pk 2400mAh.The lights come with 600mAh which is pathetic. You'll see what I mean when you change them out. The 600s are like a feather compared to the 2400s Heavier should indicate more chargable stuff inside Changing the batteries is simple enough and intuitive as there's a cover over it which you can open easily. The new batteries should last well last sunrise even though they won't need to but the net effect is that you'll have more energy stored still and would offset a gloomy days worth of charging.The lights themselves fit properly on a 4x4 post. There's an adapter plate that allows them to fit on a smaller post if you happen to have it; we do not, so I don't know how that would fit. The adapted also allows you to mount the light to a flat surface without a post. You screw the adapter down to the flat surface, put the light fixture over the adapter and install two screws which hold the light to the adapter.Edited Nov 11 2021My advice above didn't work out as planned for me in my geographic location.Even with the Amazon rechargeable batteries fully charged these lights do not recharge the batteries enough if at all to last more that two nights at a decent light level. Two nights may be pushing it. It's becoming winter so there is less less sun on top of being northeastern Pennsylvania so maybe that's a factor. It should not be as the solar cells should be strong enough to recharge, but they are not.My gamble put us past the return window.Like the look. Don't like the usable lifespan.I have tried a few other solar options and they all performed similarly bad.