SIPL Solar Roof Ventilation Fan It is a 15~50W solar panel powered rood mounted axial exhaust fan, running for indoor air circulation. 1. Self-contained ventilation, automatic operation without electric consumption 2. Fully assembled, wiring free, easy installation, no maintenance 3. Strong galvanized steel fan housing with heavy duty rust-proof powder coating 4. High quality brushless dc motor, have fan run effciently yet quietly 5. Durable fan case with 20 years lifespan, 15 years' warranty, fan motor with over 10 years lifespan, 5 years' warranty
