Modern smart USB LED light lamps: emitting bright lighting, eye caring and super long lifespan. | Unique fashion design,Handy for Using: convenience LED lamp especially for office work computer, outdoor camping, bedside reading light, security emergency lighting, etc. | Portable and small: The USB LED night light with a small size(3.94 inches 0.7 inches 0.35 inches) and light weight, easy to carry, equipped with a hole, can attach it to keychain or a lanyard, also can fits in a wallet, pocket or handbag. | It can be used for any 5V USB Source. Laptop,powerbank or usb charger etc. | Plug and play, no further action required.Note: This USB LED night light is not dimmable, and it is very bright. It may become a little hot after working for a long time, but this is normal. Please be careful when touching it.