Natural Light Energy Systems is a leading manufacturer of tubular skylights and solar attic fans. Natural Light Tubular Skylights operate completely on the sun's solar energy. No wiring or switches - just free light with all the positive benefits of natural lighting. The high-impact acrylic dome captures sunlight on the roof during the daylight hours. The flashing housing protects the entire system from weather elements. Natural Light offers two flashing styles to accommodate all roof pitches including flat roofs are available as unpainted aluminum or powder-coated black. Natural Light's Solar Attic Fan is a simple and environmentally sensible solution that can protect your home and even save you money. Powered completely by free solar energy, this sleek and efficient attic vent is compact, quiet and powerful! Simply, the function of a solar attic fan is to improve attic air circulation resulting in a healthy, energy efficient home. Solar attic fans pull hot air and moisture out of your attic extending the life of your roof. In summer months, it keeps your attic cooler helping reduce the load on your HVAC system. In winter months, it prevents moisture build-up and ice damming. Natural Light Solar Attic Fans are one of the best in their class with the highest standards for quality and functionality. We offer a 25 year product warranty - best in the industry.