DC input for charging the flashlight.

USB output for charging cell phones and other digital devises (Note: Use the original accessory USB data wires of digital products).

Before first time use, please charge the flashlight in the sun for a whole day to prolong the service life of the battery. Solar panel must face sunlight.

If you are not going to use the flashlight for long time, please charge it full. The charge lasts for more than a year.