Portable military hand power generator with double cranking handles, 3-28V adjustable, useful emergency powr supply

Hand dynamo power generator with two handlesUsed as emergency power and typically charging batteryApply Nd-Fe-B brushless motorMax. output power up to 50wWith voltage adjustor for DC 3,5,6,9,12,14,16,18,20,24,and 28VCurrent & thermal overload protectionLightweight and compact size, easy to carryHighly reliable and long lifetimeBinding belt is includedRed LED indicatorRated power: 10-30wOutput voltage: DC3-28VRated current: 0.7-3ARated speed: 90rpmOutput ripple ratio: 0.5-1.2%Output ripple voltage: 100-300mVOutput cable: 2x0.5mm2, 1.2m in lengthWork temp.: -40 to 125ºCDimension: 113*65*48mm  

Double Handles Hand Cranking Power Generator - DC output 3-28V adjustable