<p><b>Part 1:Note</b></p> <p>1. Recommended installation conditions:</p> <p>    Small wind turbines shouldbe applied in the regions which wind resources is sufficient. The annual average wind speed should be more than 3m/s, the effective wind speed 3-20m/s should be more than 3000h in accumulation per year. </p> <p>2. Battery selection:</p> <p>    Generally, the battery capacity should be equal or smaller than the power from wind turbine generator.</p> <p>    recommended battery specifications : 400W wind turbine generator  matches 240AH battery(120AHx 2 Pieces)</p> <p> </p> <p><b>Part 2:Technical Specifications:</b></p> <p><b>1.Wind turbine:</b></p> <p>Rated Power:400 Watt</p> <p>Rated Voltage : AC 12V</p> <p>Rated Rotate Speed:800 r/min</p> <p>Start Wind Speed:2.5 m/s</p> <p>Rated Wind Speed:12 m/s</p> <p>Cut-out Wind Speed:35 m/s</p> <p>Blades material: Carbon fiber composite</p> <p>Generator: 3 phase permanent magnet synchronous AC generator</p> <p>Generator case: Die-casting aluminum</p> <p>Control system: Electromagnet</p> <p>Speed regulation: Automatically adjust windward direction</p> <p>Working temperature: - 40°C - +80°C</p> <p><b>2.Wind controller Description:</b></p> <p>Rated Voltage:12V</p> <p>Maximum Current:50A</p> <p>Voltage: AC-DC</p> <p>Battery voltage:12V DC</p> <p>Brakes start voltage:15v</p> <p>Brakes start current:30A</p> <p>Display: LED</p> <p> </p> <p><b>Part 3:Package list</b></p> <p>1 x wind turbine body , 3 xblades,1 x hub,1 set x screw,1 x controller,1 x user manual</p>