1. Can hold four 18650 batteries to supply power for bicycle lights. Supports riding in rain, can not be used for diving.
2. Can charge mobile phones and other mobile devices.
3. Output voltage: 8.4V, input voltage: 8.4V; Standard 5.5DC connector (5.5mm x 2.1mm); USB output: Max. = 2A; DC output: Max. = 8A.
4. With a power display.
5. 18650 battery : 2400mAh, 3.7V.