With the help of our experienced engineers, we are able to design and develop a wide range of solar fans. These are manufactured using supreme-grade raw material in accordance with international quality standards. The offered assortment is widely applauded by the patrons for high speed of fan, availability of electrical charging option, auto angle rotation feature and excellent performance. attributes: solar charging 8-10 hours heavy duty smf battery is providedpower consumption :12w to 18woperating voltage: 12vwith 50 watt panel.with 5 amp charge controller.full size blade.daily 15 hours back up.