KI Holdings Co., Ltd. primarily manufactures and sells railway vehicle, lighting, and electrical equipment; traffic control, road information, and environmental systems; and aircraft seats in Japan. Its products include electrical equipment for railway cars, railway car seats, and station related information equipment; lighting equipment; image processing application, optical network, road information, road weather observation, and river information systems, as well as tunnel emergency equipment; UTMS, traffic control systems, traffic light machines, regulatory signs, and parking measures equipment; hot air dryers; and environmental equipment/equipment items, coytron, and biohazard compliant devices. The company also provides LED floodlight, small light, traffic lighting equipment, medium luminous red aviation obstacle lights, tunnel lighting equipment, and ship light; LED room lamp and headlamp for railway; and green candles. KI Holdings Co., Ltd. was founded in 1915 and is headquartered in Yokohama, Japan. KI Holdings Co., Ltd. is a subsidiary of Koito Manufacturing Co., Ltd.