Emergency flashlight with built-in rechargeable battery. Stores energy for a long time and no external battery required. High conversion efficiency: cranking the crank for 6 minutes gives one hour of light, so you are ready for all conditions. Classic design and sustainable. Khaki and gray color. Outdoor survival gear. Perfect gift for outdoor activities. With a quick-to-use carabiner, clip it to your backpack and take it for camping, hiking, etc. Dimensions: 124 x 45 x 32 mm. Technical data: Item type: LED torch. Material: plastic. Body color: green. Light color: white . Battery type: Ni-MH. Battery capacity: 40 mAh. LED lifespan: 100,000 hours. Charging with the crank: Turn the crank at 2 revolutions per second to recharge the battery. Turning the crank for one minute generates sufficient energy for 8 minutes of lighting. To protect the long-term performance of the battery, do not turn the crank for more than 15 minutes. Charging with the solar panel: The solar panel can be charged both under natural light and artificial. Charging in direct sunlight for 30 minutes generates sufficient energy for 10 minutes of lighting. 40 hours of direct sunlight will fully charge the battery. Tips for Usage: Please turn the crank when the flashlight is off. Avoid placing the light in extreme heat or humidity. Please apply moderate resistance to the crank in order not to damage it. To protect the performance of battery, please turn the crank for at least 1 minute every month. Package contents: 1 flashlight.