Wattage:0-5wLight Source:LED BulbsIs Batteries Included:NoIs Batteries Required:NoPower Source:DCDescription:1. Three lights in the card2. Mini LED night light, good for camping, desktop lighting3. 0.2W ultra low power output, 2835 chips LED, long lighting, No radiating.4. 5000 mah mobile power supply, with sustainable light up 100 hours.5. Can fit into a purse, also can hang on the keys, very portable.6. Double-sided USB design, and all can be the plug7, material:plastic8, voltage:5v

http://olla.gr/10-pcs-mini-pocket-card-usb-power-keychain-led-night-light-black/