... power, just hand pressing it. Led dynamo torch,Eco-friendly,economical and safe. SPECS:Name ... : Led Dynamo TorchBulb Type: LEDColor: YellowLighting Quantity: 3 ... 8x3 cmFeature: Dynamo, SpotlightLife Span: 50,000hCertificate: CE&RoHS 3 Leds Dynamo Torch: 1)Dynamo: Hand crank Dynamo2 ... )3 pcs high quality leds3)one minute dynamo can light for at least 15 minutes4 ...