Product size:58mm * 18mm * 9mm. 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 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. | Materials: Metal, PCB, SMD LED, Electronic Parts, Translucent Plastic Protection Shell.LED Pure White Mini Portable USB LED Night Light.NOTE: This USB LED nigh tlight is not dimmable and is very bright, it will generate little warm after working for long time, but it's normal, just take care when you touch it. | If you buy, you will get 3 pac USB portable led lights, and 12 monthly warranty and friendly service.