These lights were just SO cute that I had to get the trio of them.
I wasn't completely sure before I bought them whether they were something you charged up OR something you had to have plugged in to work. But once I fiddled with them I saw that they needed to be plugged into a USB power source to work. I have several portable and rechargeable power packs that I can bring with me when camping so I can use these terrific little lights inside the tent or around our campsite.
They are much brighter than their size, that's for sure. That have two format: you can use them as they come out of the box more like a spotlight or lamp OR you can slide the outer casing down and then they work more like a lantern, glowing brightly with the color or each outer shell.
The cords they give you are very long, so you can connect them and really spread them out. I got three of them, but they say up to four can be hooked up together.
Indoors, when we're not camping, we plan to use them as part of our house decorations during the Christmas holidays.