Interexchange Trading Firm: Professionally Producing Innovative Products Such As: Hand Cranking, Shake, Solar Powered LED Flashlights, LED Torch, Lanterns, MP3, MP4, Players, Electronic Gifts, Outdoor Lighting since 1997. Sold to wholesalers and distributors only. LED Dynamo Flashlight or E-LIGHT.US can be sold individually all other products are sold on a wholesaler, distributor basis. All Order's are Factory Direct, prices do not included shipping & handling. E-LIGHT. Working Principle: Working Principle for hand cranking product's is a high power brushless generator generates the power to charge its inside 600mah/3.6V NI-MH battery after regulating, and comes with a charging cable to recharge a mobile phone( while it does not recharge the inside battery). Household 6V electricity also can charge the inside battery. Some Product Features:1.Mobile phone emergent charger 2. Household 6V electricity charge the inside battery 3.High power LED for lighting under emergency4. FM /AM radio function. E-LIGHT.US SOLD FOR RESALE ONLY! Please check MOQ (Minimum Order Quantity) Before Ordering.