OMC’s 550 series of Spectralux Light Engines targets applications requiring high levels of light output, such as rail signaling, runway lights, and architectural spotlighting. The Light Engines are arrays of highly efficient, tightly matched LEDs. The 550 series ranges in light output from 2205 to 6635 lumens. Luminous efficiency ranges from 85.75 to 110.5 lumens/W. Other available ranges perform up to 130 lumens/watt and higher. According to OMC, they have extremely long lifetimes and are simple to use, requiring only a constant-current supply to drive them.