Durable --- High-quality solar cells and LED light beads ensure the flashlight's durability, and its ergonomic design makes it very comfortable and convenient to use. Rechargeable---The built-in rechargeable solar panel absorbs all kinds of light, such as strong/moderate sunlight, artificial lights, etc. It can store energy for a long time without external batteries. Efficient---Using a one-minute hand crank (based on a speed of two revolutions per second) can easily generate more than 8 minutes of light, which can meet various emergencies. Portable---The flashlight is lightweight, compact, and easy to carry. The carabiner design allows you to attach the flashlight to a backpack. It can be used not only as emergency equipment, but also as outdoor camping and mountaineering gear. Specification Product: Solar Flashlight Weight: 86g Size: 124 * 45 * 32 mm Color: Green Battery Type: Ni-MH Battery Capacity: 40 mAh LED Brightness: 1000 mcd LED Lifespan: 100,000 hours