Allows for 50% of outside light to pass through into the room
For single pane windows only. Ideal for space under 150 sq. ft.
Under good winter sun conditions, up to 20 degrees F (11 degrees C) may be added to the ambient temperature in the room with a maximum air flow from the solar fan of 75 CFM. Quiet solar powered recirculating fan distributes heated air. 

12 Volt / 20 Watt photovoltaic panel provides plenty of solar energy to power the fan.

Easy to install - Sit the panel on the interior window sill or hang from the window header using the included hardware. Optional easel stand available to purchase separately.