... 4) Dynamo LED Flashlight, Outdoor Radio CE, RoHS, BV, GMC Solar Dynamo,Crank Digital Display,Radio AM FM,Dynamo Digital Display ... ) Function & Features: 1.Cranking for power generation 2.Charged by solar panel 3.Charged by external adapter (optional) 4.Digital display ... )23 – 32 minutes11.Max. Current flux of being charged by solar energy20mA12.Time of being fully charged under sunlight(500W/ M2 ...