The hand crank lantern is a small lantern that you can open and collapse accordion style and is great for storing in small places for emergencies or bringing on camping or hiking trips while trying to use the least amount of space possible. The lantern does not use replaceable batteries as you can charge via a power cord or if necessary by a hand crank which from just one minute of hand cranking will provide 11 minutes of low level lighting or 4 minutes of high level lighting. With a full charge the lantern will offer 4.5 hours of low level lighting, and 40 minutes of high level lighting. Best of all the accordion lantern acts as an emergency cell phone or digital device charger, just connect your phone to the lantern and it will charge it, or give it a few cranks if the lantern is running low on juice. Check out the lantern in action via the video below.