I got these to decorate my patio for year-round use. Just enough light to add some atmosphere but not enough that it's blinding or annoying.
My only complaint is that its two shorter strings that come out instead of one long 72-foot string. So this means you have to put the solar part in the middle and decorate it from there. So, when you buy these, keep that in mind. If the center of what you want to be decorated doesn't have adequate lighting, you're going to have a bit of an issue with them.
Other than that, they function as they should with different patterns and brightness.