The Department of Energy estimates there are 360 million fluorescent troffers installed across the US, but market data show that shipments of linear fluorescent lamps have been tanking since 2014. Tubular LEDs (TLEDs) are taking over. Like other LED replacement lamps, TLEDs are penetrating both the maintenance market for replacing conventional-lamp burnouts and the system-wide retrofit market, where utilities drive change and push for persistent savings. Multiple paths to achieving that energy savings, plus tremendous diversity in product quality and attributes, are leading the rapid market expansion.
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