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LED Downlights Commercial-Sector Applications

LED Downlights Commercial-Sector Applications

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LED Downlights Commercial-Sector Applications

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  1. LED Downlights Commercial-Sector Applications RTF January 8, 2008

  2. 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

  3. 25K Hours & Full Replacement Cost

  4. 25K Hours & 50% Replacement Cost

  5. 50K Hours and 50% Replacement Cost

  6. 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?

  7. Cost-Effective if Cost = $60IF NO DIMMING

  8. Dimming Situations Replace Incandescent (2500 Hrs/Year) Life=25K hrs, 50% Repl Cost, 60% FLE Hours Dimmed