USB Night Lights - 12pcs 4 Kinds Super Bright LED Mini USB Port Portable Night Lights for Laptop Keyboard

I use them with my power banks. This set of 4 different types of lights give options on the type of light I want.

All of them work. Very nice collection. Very bright. Good design.

kind of expensive, pretty cool, they all work

These are more of a "let's buy some and see what they do." type of thing. There are several different kinds of lights, bright, dim, white and yellow. They do work fine. I haven't kept them plugged into anything full time yet. If you use them on a PC, they only show light in one direction. The bright ones that have a touch sensor will turn them on/off. I do think I can find a use for them somewhere. If they come out with different color LED's I would buy them. Can they be damaged while on a keychain? They look sturdy enough.

I got these just because I was curious. These things are very bright for being so small. They also use very little power. I've tried them in small usb power adapters, portable power banks, and even using rechargeable AA batteries. Worked every time. The only negative was the plastic encased ones got very warm after about an hour of continuous use so I would not recommend leaving it unattended. Good to keep around as an emergency light if you have a portable usb power bank around.

These were sent loose in a plastic container. The connections were scratched and they had obviously bounced all around on the way here. Hoping this would not affect their performance, I checked each one, and they do all light up. The touch sensor lights are the least impressive. They dont make a good connection (wobble around) and take several taps to get a response.

It is very Bright and great for emergencies for use with a power bank. For extended blackouts you can connect it to a power bank and have the light on all night, it uses very little power. you can also connect it to a powered USB port to create ambience lighting in you apt, like under a shelf, etc.

The boards these leds are on are too thin. This makes for a loose fit and a bad connection. The old ones were great but I guess they got cheap.

The lights with enclosures operate well but the PCB options are unfortunately too thin to make a connection to the USB pins and you will need to add something to give it more thickness so they actually connect unfortunate for the price won't purchase again also the lamps with enclosures are the only really bright ones unfortunately with the other two the wattage rating is less than .3 w measured via power consumption while the lamps in enclosures measure at 1.5 w approximately