The Groton 56 Inch Indoor/Outdoor Ceiling Fan, inspired by the clear Fresnel lens used in light houses along the coast of Connecticut, combines classic design with nautical spirit in various finishes. With a 14 degree blade pitch, a 5-bladed blade span of 56†and a 188x25 MM motor, the Groton offers an incredible airflow. All finishes except for Polished Nickel are Wet Location rated. Polished Nickel finish is only used Indoor. The Art of Air Management. Fan motors use copper windings, sealed precision steel bearings, and computer-controlled rotor / stator alignment to ensure minimal noise and optimal air circulation.