Rutland wind generators are rated at 90 watts in a 32 kph wind and can deliver in excess of 250 watts in high wind conditions. They are ideal for maintaining small battery systems or to complement existing solar systems. The 913 model is an excellent choice for marine applications. They are built using marine grade powder-coated aluminum and stainless steel. The unique, balanced, six-blade design ensures quiet operation, making this model ideal for cruising sailboats. The Furlmatic is an industrial windcharger for use in remote, unattended sites that are subject to exceptional high winds and harsh conditions. It features auto-furling: the tail fin turns the wind charger horizontally out of the wind once speeds exceed 56 kph (35 mph), protecting the wind generator from burning out. Furlmatics have been used at winter cabins, telecom sites and in areas prone to a lot of snow. All models feature replaceable plastic blades, brushless, permanent magnet DC alternators and a 1 year warranty. 12 or 24 V models.