This is a nice low-cost , dust-proof and water proof power bank that will re-charge your O-Pen (or your gps or cell phone) when you are outdoors or if the grid goes down.

- Flash light has hi, low, and strobe funcions

- Has a small compass, whistle, carabiner included

Capacity: 20000 Mah

input: micro usb DC 5V 2A

2 outputs: 1 DC 5V 2A

Solar panel: DC 5V 200 mAh

Battery type: Li-polymer

Flashlight: 0.5 W * 2