Generate power in four ways!  AC/DC charger (included), Wind-up Dynamo, Solar Cells, or from 3 C size batteries (not included).  It will work when you need it, even if there are no batteries or electricity available!  This is truely a versatile product.  Changes from 3 LED flashlight to a lantern just by pulling up on the lens and includes an AM/FM and Wheather band radio to keep you informed during emergencies.  Also features an attention getting siren and emergency flashing beacon.  The perfect tool for service professionals, emergency personnel, recreational activities, and emergency preparedness kits.  Power Duration When fully charged (AC/DC or Solar = 6 hours of light and radio.  3 minutes winding = 30 minutes of light and radio.  3 C Batteries = 20 hours light and radio.