This post is also available in: English (英语)繁體中文 (繁体中文) FAA Red LED system L864 & L810 Dual (Red/White) LED Systems: L-865 and L-864 White LED Systems: L-865 High Intensity (L-856L-864) System Wind Lighting Medium Intensity L-864/L-865 (Red/White) + Infraed (IR) ICAO Low Intensity Medium Intensity High Intensity Helicopter Beacon