They are great for greenhouses, kennels, barns and attics where AC power is not available. The solar module runs the fan at full power in full sun and at a slower speed in overcast weather. Operation is automatic. When the sun shines on the solar module, the fan begins to operate. The Attic Roof Ventilator is self-contained.
Fans are nearly ideal solar powered loads.
Solar powered fans run when they are needed the most - when the sun is shining. These 12 and 24 VDC fans are quiet, powerful and use very little power. Precision ball bearings insure a long life. They are primarily used to cool electronic equipment, but they also work well as circulators in or outside of ducts. Their very low current draw makes them ideal for continuous duty applications.