ISTB-L - Stop Bar and RWSL Runway Entrance Light REL, Inset 8" and 12", LED, L-852S(L)
The ISTB-L LED stop bar fixture can be installed on existing series circuits with no modifications to the existing CCR or isolation transformer. These fixtures have an average LED life of 56,000 hours under high-intensity conditions and more than 150,000 hours under actual operating conditions, resulting in significant reduction or even elimination of ongoing maintenance costs and periodic re-lamping expenses. The red LED fixture is also used for the FAA's Runway Status Light application as a Runway Entrance Light (REL).
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