NYC subway system had a problem.

The tragic events of 9/11 revealed a complete shortfall in emergency lighting in many of NYC’s buildings and infrastructure.

Pressure from a riders’ advocacy group called the “Straphangers” spurred NYC to develop a specification for an advanced system of efficient LED lighting with long battery life and remote monitoring of battery readiness.


NYC Transit had interest in:

  • 4 hour LED emergency lights (industry standard is 1.5 hours)
  • Establish Communication  between emergency ballast and control panel
  • Ability to dim lights during day
  • Testing & Reporting


The Wagner LED rail lighting system paired with LEDdynamics control system provided DALI standard compliant communication between Emergency Ballast and Control Panel.

  • Dims in response to natural daylight
  • Self Tests per NYC requirements
  • 30 second test every 30 days
  • 30 minute test every 6 months
  • Reports any failure in battery or light engine to unified control panel


The control system took 5-months to engineer, design, test and install.