High Performance wind turbines 400W 1.power:400W 2.voltage:12V/24V 3.type:cellular WELLSEE WS-WT400W 12V/24V high effiency squirrel-cage ... small size, light weight, low cut-in speed, free-maintenance , high reliability, easy installation, long lifetime, etc, especially in urban construction ... /s450WNote: wind speed exceeds 15m/start electronic speed brake system High Performance wind turbines 400W