Comparison table
Comparison table Cost Comparison for 60 watt incandescent equivalent light bulb (U.S. residential electricity prices) Incandescent Halogen CFL LED (EcoSmart clear) LED (Philips) LED (Cree) Purchase price $0.41 $1.17 $0.99 $3.66 $1.50 $4.99 Watts 60 43 14 6.5 8.5 9.5 lumens (mean) 860 750 775 800 800 815 lumens/watt 14.3 17.4 55.4 123.1 94.1 85.8 Color Temperature kelvin 2700 2920 2700 2700 2700 2700 CRI 100 100 82 80 80 85 Lifespan (hours) 1,000 1,000 10,000 15,000 10,000 25,000 Lamp lifetime in years @ 6 hours/day 0.46 0.46 4.6 6.8 4.6 11.4 Energy cost over 20 years @ 11 cents/kWh $289 $207 $67 $31 $41 $46 Total cost over 20 years $307 $259 $70 $42 $48 $56 Total cost per 860 lumens $307 $297 $78 $45 $52 $59 Comparison based on 6 hours use per day (43,800 hours over 20 yrs) Energy Star qualification Reduces energy costs — uses at least 75% less energy than incandescent lighting, saving on operating expenses. Reduces maintenance costs...