... as bellow illustration 4.Detailed Product Description Aviation obstruction light for marking towers (Telecom, GSM, Microwave & TV), cranes, ... hoists, smokestacks, buildings, sport stadiums, light pylons, high voltage towers and any other potentially hazardous obstructions ... to air traffic with a steady or flashing red safety light. SCHTLITE TECH. LIGHTING (YUYAO) CO ., LTD ...