Wind Turbine (DB-400) The 400W wind turbine is our entry level wind turbine, made specifically for off grid residential use in mind. Its DIY set-up instructions and with all the materials needed provided for, you will be able to set the wind turbine up in no time at all. The 400W wind turbine is durable, low maintenance and the lightest wind turbine we currently have weighing at only 7.6 Kg. Coated with special high weather tolerant spray to protect the wind turbine from the elements such as rain and salt water from the sea. It is a completely self-sustaining stand-alone device that will continuously generates 100% clean GREEN renewable energy, without you being present or around it. The MPPT of the 400W wind turbine is built within the wind turbine itself. The MPPT is specially designed for each individual wind turbine, the special design allows you to get the most power out of the wind turbine as well as to protect your wind turbine from overcharging. Why use our wind turbine Gain energy independence Ease demand on power grids Reduce vulnerability to volatile utility prices Reduce air pollution from fossil electricity sources Augment your photovoltaic solar power system (still generates power when the sun is not shining) Wind is a clean source of renewable energy that produces no air or water pollution. Wind is free and since the operational costs are close to zero once a turbine is erected, demands for SPECIFICATION: Rated power: 400W, Rated speed: 46 ft/s, Voltage system: 12V, Cut-in wind speed: 6.7mph, Suggested battery capacity: 50A or larger, Number of blades: 3, Rotor diameter: 4 ft and Light weight: 16,75 lb. INCLUDES: 1 x Center piece + tail (including generator + MPPT), 3 x Blades, 1 x Nose cone, 1 x Manual break switch + voltmeter display box, 9 x Hex bolts (Large), 2 x Hex bolts (Small), 1 x Hex key, 11 x Nuts, 20 x Washers, 1 x Unilateral open wrench and 1 x Operational installation manual. WARRANTY: 1 Year manufactures warranty.