... 35% wind energy utilization 4. low start speed vertical wind turbine :)Feature of wind turbine1. 2 year quality warranty2. low noise ... Qingdao Jingfan Energy Science & Technology co., ltd,manufacturer of wind turbine in ChinaWe mainly produce vertical axis and horizontal axis wind ... turbine including 300w, 600w , 1kw, 2kw, 3kw,5kw,10kw. The ...