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LED Downlights Commercial-Sector Applications RTF January 8, 2008
First-Cut Analysis • Test range of B/C ratio • Three base cases: • 65W PAR30 • 50W EB30 • 18W CFL • Apply range of hours & space heat interaction factors from C&I applications • Test cost, life, replacement assumptions
Baseline Issues • Not TRC cost-effective to replace CFL • Incandescent Baseline can be cost-effective • In what situations is baseline incandescent? • Dimming • Incandescent-like color required • Other?
Dimming Situations Replace Incandescent (2500 Hrs/Year) Life=25K hrs, 50% Repl Cost, 60% FLE Hours Dimmed