Power Bank: Charges cell phones and cameras for emergencies and convenience while enjoying the great outdoors. Emergency power outage lights for home power failure can also serve as a power bank for smartphone or mobile devices in emergency Light Modes and Dimmable: Press the knob for 1s to turn on the rechargeable lantern. clockwise rotate for better light, counter rotate for lower light ! It takes 3~4 laps of rotating for the lamp to reach maxium brightness. Water Resistant and Enough Brightness: Rechargeable camping lights & lanterns provides you the brightness of 10~370lm. The IPX4 waterproof rating of this usb camping lantern means it is protected against splashing water from all angles Note：Due to the sensitivity of batteries, only the following countries are shipped with batteries included: United States, Australia, United Kingdom, Spain, France.(Battery model: 18650 lithium battery and AA battery.Each product requires two lithium batteries or three AA batteries）