salt water dynamo emergency lights (rechargeable)

This salt water dynamo emergency lights is our new emergency light with ultra-light leds and USB ports. There’s no need to use the battery. We just need to inject salt water and it will become a portable charging equipment. It contains 11000mAh large capacitance, 200 meters ultra-long lighting distance and 20 hours long duration. It has the characteristics of low cost, high energy density, simple battery structure, eco-friendly and no pollution.