... light, no batteries required 2)cranking power 3)3LED light Dynamo flashlights with mobilephone charger function1)Battery:3.6V 40mA Li-ion ... ,2)One mintune dynamo can light for 15mintunes ,out:5.8V,250mA ,3)3 ... ,it carry with 4plugs and one line 3LED Multi-functional dynamo flashlights with mobilephone charger function