1.Solar&Crank Dynamo Camping Torch 2.FM Radio 3.Eco-Friendly, 6 LEDs 4.Charger ... hurricane, camping, emergency, outdoor SB-5013 Solar&Crank Dynamo Camping Torch Working Principle: This product adopts the principle of solar-energy ... , and 18 production lines for assembly and testing .The production Capacity is 30,000pcs per day. Company completed 326 million yuan ...