The Vari-Cyclone DC Powered Ceiling Fan is the perfect choice for when AC power is not available. The Vari-Cyclone can be used in a variety of applications including porches, gazebos, pergolas, greenhouses, warehouses and cabins. The Vari-Cyclone’s 60” diameter blades, designed by the Florida Solar Energy Center in cooperation with a major fan manufacturer utilize “Gossamer Wind Technology” found only in AC powered fans until now. We are the only DC fan company allowed to use these revolutionary new fan blades. The “Gossamer Wind Technology” blades allow the fan to produce up to 40% more air flow with no increase in power consumption, making the Vari-Cyclone the most energy efficient DC powered ceiling fan available.