... high effciency. When no power, just hand pressing it Led dynamo torch,Eco-friendly,economical and safe. spec:Bulb ... size: 25x6 cmLife span: 50,000hCertificate: CE and RoHS Solar Panel led workinglight,car workinglight:1) The light can use by ... solar or dynamo or charger2) Battery:AA1100mA 3.6V Ni- ... at least 4.5 or 6.5 hours solar panel:4.5V