Product details:

Includes an automatic dome opener with a rain sensor. The dome cover is opened when the dome up switch is turned on and closed when the down feature is selected. Smoke-colored, polycarbonate dome with lifetime guarantee. Close when the rain sensor becomes wet, then re-opens once the sensor dries. Quiet, 12V ceiling fan has 3 speeds. Features a removable screen for easy cleaning and reversible fan blade motor (in or out). Low amp draw. Fits 14" x 14" roof openings.