A selection of different colored lights sits on the foc'scle of USCGC Sycamore (WLB-209) in Long Island Sound, NY, on Oct. 20, 2021. Depending on the color of the buoy, the correct light is chosen, set to a specific flash intensity, and frequency before being sent over board with the buoy. (U.S. Coast Guard photo by Petty Officer 3rd Class Ryan L. Noel)