When expanded, functions as a two power level lantern When collapsed, functions as a flashlight Built-in dynamo charger – never needs batteries Can be charged via computer, DC cigarette lighter adapter or AC adapter Can charge cell phones or other digital devices Hanging ring Can be charged via optional external Secur Solar Panel (sold separately) When expanded, functions as a two power level lantern When collapsed, functions as a flashlight Built-in dynamo charger - never needs batteries Can be charged via computer, optional DC cigarette lighter adaptor or optional AC home adaptor Can charge cell phones or other digital devices Hanging ring Can also be charged via external Secur Solar Panel (optional)