Users that have a Lite Drive and up have the ability to use a data-transfer capable Micro-USB cable to charge their lights. High Efficiency charging is sometimes called High Energy, or Fast Charging. It relies on a data connection between a high output charger and the device to enable more amperage output from the charger for faster charging. The voltage is still 5V, the the amperage can be as high as 2A. This is where you will notice a blue light illuminating from the power button. Standard 1A of the USB standard will illuminate green during charging.
