The Historic St. Simons Light Station serves mariners with a light that emanates from the tower, while the tall, white beacon also functions as a day-mark. Its light is a 1,000 watt electric bulb reflected by a fixed 3rd Order Fresnel Lens manufactured by L. Sautier of Paris. Four flash panels mounted around the fixed lens revolve around the bulb, flashing one beam per minute. The beam projects 23 miles, limited by the curvature of the earth. Today, the lighthouse is under the jurisdiction and care of the United States Coast Guard, Aids to Navigation, Jacksonville Beach, Florida, while preservation of the historic structure on this site is the responsibility of the Coastal Georgia Historical Society.