... LEDs. Dynamo Charger YSF-J003Features: 1) The strong power locomotive shaking flashlight, great used in outdoors, travel, jaunt, boat, household, sail ... it is the fist selection in emergency.2) This flashlight owns the advantages of no battery,environmentally friendly, save ... handle make the flashlight becomes more and more popular with people.3) Good charge effect: 1 minute shaking time can last ...