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Bicycle Dynamo Generator :Features:
Bicycle chain drive the dynamo's gear to generate powerDynamo by bicycle moving, almostly not influce on the bicycle speed Suitable for almost all kinds of bicycles The integrated design of dynamo, battery and voltage regulatorDIY installation, no need any toolsBuilt-in 300mA Lithium battery, supply power even no ridingThe gears made of abrasionresistant plastic steel, and the bicycle chain don't wear outWith a LED indicate light, it flash when charging, also can be used as tail light when riding.Rainproof design, no need worry about water entry at raining days.Supply power to your mobile phone, bicycle music box, flashlight, etcEnergy saving, no pollution, green products.Over-charge, over-temperature, over-voltage, over-current protectionSpecial automatic adjustment holder(Patented), suitable for speed-variable bicycle
Bicycle Dynamo Generator