Dialight Plc is a holding company, which engages in applied light emitting diode technology business. It operates through two segments: Lighting and Signals & Components. The Lighting segment develops, manufactures, and supplies LED lighting solutions for hazardous and industrial applications. The Signals and Components segment develops, produces, and supplies status indication components for electronics OEMs, together with niche industrial and automotive electronic components and highly efficient LED signalling solutions for the traffic and signals markets. The company was founded by Harry Leonard Tee in 1938 and is headquartered in London, the United Kingdom.