Vers-A Light is a self powered, compact 19 LED lantern and SOS beacon in a weatherproof housing so versatile you will find many uses for it, Hang it in a tent or from a tree, Use the magnets to attach it to a car or other metal ojects or as a reading light, flashlight or SOS feature to signal for help, It has four ways to charge the Dynamo crank, USB from computer, 12V & 120V, Various uses are in Tents, around the house, for auto repair, personal safety and emergency preparedness, Magnets on the back secure to metal objects, Detachable handle with Hook and unit is Weatherproof, 2 to 3 minutes of winding provides up to 40 minutes of light, Fully charging with other methods provide up to 10 hours of light, SKU: AB255