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The contract calls for retrofitting 13,400 incandescent units with LED modules, thus completing conversion of all of the systems more than 50,000 signals.
The LED signals are saving the city nearly $1 million a year in utility bills and maintenance. They are designed to retrofit two 16-watt incandescent bulbs with a robust module based on the latest high-flux LED and driver technology. With a projected service life Of 10 years, the LED modules provide energy savings of 85 percent.
The new signals are being well received by the citys transit workers, who have indicated they are performing extremely well, and that the saturated colors of the LEDs are much more visible, resulting in greater safety on the tracks, commented Laura Hoffmann, Dialight business development Manager.
Dialight had been working with the New York City Transit Authority for the past six years in developing an LEDs that can be easily installed into a wide variety of existing enclosures without necessitating the difficult and costly removal of the lenses, some of which have been in Place for more than 50 years. The result is the companys versatile 891 Series LED modules for the retrofit of rail wayside signals. 
Dialight provides LED signals for NYC subway system
LED modules will improve safety on New Yorks subway, while also reducing energy and maintenance costs. Dialight Corporation has been awarded a $1.8 million contract to provide LED trackside signals for the New York City subway system.