The SolarStar vent by Solatube is the ultimate in natural ventilation.
Powered by a solar panel on the vent cap, this fan will outperform many electric fans, but requires no electrical connection and will never cost you a cent to run.
Being solar-powered, this fan kicks into high gear when you need it most - the hotter and sunnier it is outside, the more this fan does to reduce the heat in your home.
One Solar Star equals up to 14 Wind Vents and can be placed wherever improved air circulation is needed. The Solar Star is compact, low profile and has a contemporary design and comes with a 5 year warranty.