I got two of these, and I was expecting it to be brighter and the USB plug in makes it a little inconvenient for where I wanted to put them, totally didn't read the full description, where it clearly says it's USB. The one light won't even turn on when I touch the button, and then it will randomly turn on when no one is near it. Also make sure you put it in a place that will not get bumped, it will fall over, not very sturdy. Other light works just fine.