PATLITE Signal Tower Lamp - PATLITE Corporation has become Japan's largest manufacturer of Visual and Audible warning devices since developing the first rotating warning light in 1965. Their primary market at that time was public safety and emergency vehicle lighting. Since then, with the emerging automation of industry and the use of computer with machinery, a new market was created. Patlite met the need by developing machine status indicators with multiple colors to help manufacturers increase productivity and eliminate down-time in a "just-in-time" environment.