Durable—High quality solar cells and LED light beads ensure the durability of the flashlight, and its ergonomic design makes it very comfortable and convenient to use. Rechargeable– -Built-in rechargeable solar panel that absorbs all kinds of light, like strong/moderate sunlight, lights, etc. It can store power for a long time without external batteries. Efficient—Using a one-minute crank (based on a speed of two revolutions per second) can easily generate more than 8 minutes of lighting power, which can meet various emergencies. Portable — The flashlight is lightweight, compact and easy to carry. The carabiner design allows the flashlight to be hooked to the backpack. It can be used not only as emergency equipment, but also as outdoor camping and mountaineering equipment.