Review on 🔦 DaFuRui 12pcs USB Light Keychain: Super Bright LED Mini Night Light for Laptop Keyboard - Portable USB Port Circuit Boards by Keith Maynard

It's more like "let's buy a few and see what they do". kind of thing. There are different types of light, bright, dim, white and yellow. They work fine. I haven't kept them permanently attached to anything yet. If you're using them on a PC, they only glow in one direction. The bright ones that have a touch sensor turn them on/off. I think I can find a use for them somewhere. If they came out with different LED colors I would buy them. Can they be damaged on the keychain? You look strong enough.