Go back to the Purchasing Advisor on energy-efficient track lights.
Notes: CFL = compact fluorescent lamp; COP = coefficient of performance; h = hour; kWh = kilowatt-hour; NA = not applicable; W = watt; y = year.
a. Cooling energy costs assume 80 percent of input power becomes a cooling load for the halogen system, 30 percent becomes a cooling load for the system, and cooling load COP is 3.4.
b. Lamp replacement cost assumes 15 minutes per lamp at $25/h.
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