... life (15-20 years) -- CE Name:C 2KW Vertical Wind TurbineWorking Condition:The diameter of wind wheel: 2.5mBlades number: 5Blades length: 1650mmRated rotate ... 8pcsSummary The vertical axle start up by breeze,the advanced "v"type blades,exert the "wind force theory" completely,flexible "wind hole"device ... , color TV, lighting, electric fan, charger etc.Power diagram V 2kw vertical axis wind turbine