Description:
This battery pack case multifunctional, you can connect it to your bicycle lamp and make it a cycling companion, or charge you cellphone via USB port and use it as a power bank. There are 3 light modes for your choice, use it in the dark or in an emergency, large-capacity battery allows it to continuously work for a long time. The batteries are easy to install or remove.

Features:
1. Can be packed into 4x18650 batteries (NOT included). You can charge the battery pack via Micro USB port. The batteries are easy to install or remove.
2. Power indicator light shows the working status and reminds you of charging the battery pack.
3. 3W LED light: Corrosion resistance, great lighting effect, long lighting time and wide lighting range.
4. Adjustbale LED light: 100% high-light, 50% low-light, flash.
5. Can be combined to bicycle lights and be a cycling companion.
6. Use it as a power bank to charge your cellphone or other devices.

Specifications:
Color: Black
Material: Plastic
Interface: USB (output), Micro USB (input), DC (input)
Battery Capacity: 4 * 18650 Battery (NOT included)
Input Power: 5V
Output Power: 5.1V
Size: Approx. 105 * 43 * 43 mm / 4.1 * 1.7 * 1.7 inch
Micro USB Input: 5V
USB Output: 5V 2A
LED Light: 3W
Adjustable 3 Light Modes: 100% high-light, 50% low-light, flash
Package Weight: About 104g

Package List:
1 * Battery Pack Case
1 * Storage Cloth Bag
(Other items in the pictures are not included.)