AutoDoTool 300w Watt 12V DC Hyacinth Wind Turbine Generator For Home Yard Boats 6 blades Durable Construction Reviewhttp://tinyurl.com/pe2f877 AutoDoTool 300w Watt 12V DC Hyacinth Wind Turbine Generator For Home Yard Boats 6 blades Durable Construction Built-in overspeed protection -Fully automatic with blade aerodynamic braking perfectly protect the overall unit when meet over-speed wind -It's special turning tail design not only beautiful but also can resist strong wind -Tip stall protection.Large power,low volume and high efficiency -Blades use special composite material,reasonable Aerodynamic Configurations,make overall unit low noise work -Use rare earth permanent magnet(REPM),reduce overall unit's volume and weight.Durable construction and modern materials -Using modern, durable materials giving our customers products with many years of trouble free service even under the harsh conditions of a marine environmentEfficient aerofoil profile blades. Durable construction and modern materials.Large power,low volume and high efficiency. Built-in overspeed protection. Rated power:300W.voltage:12V/DC.Rated current:25A.Rated speed:900r/m.Max power:350W.Number of blade:6 pcs.Starting wind speed:3m/s.Designed with both reliability and performance in mind, Hyacinth Wind Turbines have unique design, high reliability and consistent performance.A wind turbine is a long term investment.