Portable 4 x 18650 Lithium Battery Case Waterproof 18650 Battery Box USB for Power Bank LED Bicycle Light Bike Lamp
Can be packed into 4 x 18650 batteries and combined them to bicycle lights powered.
Double port output, circular port with waterproof thread interface, power supply and charging common, USB interface output current.
Level 3 power instructions, professional waterproof.
With special straps, easy to carry.
Model: Battery Case Box
Light Source Type: LED
Power Supply: 4 x 18650 Batteries(Not Included)
1 x 18650 Battery Holder