This LED light is a stand-alone fixture, it does not require any additional harnesses from the supercap supply, it meets FRA emergency egress lighting requirement, Once the 120VAC feed is lost the LED turns on for 90 minutes allowing illumination incase battery power is lost, can also be used on locomotives that require Emergency light to come on once Emergency Brake is toggled.   

Can be installed in a locomotive cab above each door or in all coach cars as Emergency lighting.

It has a built in potentiometer so the light intensity can be adjusted for smaller or larger areas.

The operating voltage can be powered from a locomotive 74VDC system (56-90VDC) or 120 VAC Hotel (HEP) Power.