They seem to work well with small things. I have solar front gate that was to far away from my house to run electric to it. I also have some solar fans and lights in the barn. They all work well.
However, I also live in Florida.
We have a few solar lights. They seem to work ok, but, never tried using them in the winter. We have so many cloudy days I don’t know how well they would recharge. I think I’ll experiment and turn one on until it runs out of steam, then see how long it takes to recharge.