Usage Tips:Product Specification:Name: Hand-Up Crank Solar LanternMaterial: ABSLEDs: 6 LEDsSolar Panel: Amorphous SiliconPower source: hand-cranked + solar powerPackage size: about 17.7*8*6cm/6.97*3.2*2.36inProduct weight: about 220gWorking temperature: -20 to 60Working humidity: 30% - 90%Charging: built-in 3.6V/80mAh rechargeable Ni-MH battery; hand cranking for one minute, continuous lighting for more than ten minutes; hand cranking can be fully charged in about 3 hours,and continuous discharge time is about 2 hours; solar charging 12-15 Can be fully charged in over an hour.Uses: hunting, hiking, camping, sailing, geological landscapes, power outages, cars, etc.Product Listing:1 * Hand-Up Crank DynamoSolar LanternNotes:1. Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.2. Due to manual measurement, there is a tolerance in the product size.