The Energy Independence and Security Act (EISA) of 2007 requires FAA to transition incandescent lamps to LED technology. LED technology uses far less energy with much higher reliability, which provides significant cost and efficiency benefits. Current lighting systems use PAR- 38 and -56 lamps that will need to transition to LED lamps. To meet future requirements the FAA has determined the most economical approach to replace incandescent lamps is to use the existing infrastructure of 950 MALSRs. Commercial LED lamps do not meet this requirement. The FAA is developing a form, fit, and function replacement MALSR LED lamp.  The replacement lamp is in Operational Testing as of August 2025 and will be in full production in Q1 FY26.