Efficiency Comparison of LED versus Traditional Lighting

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Efficiency Comparison of LED versus Traditional Lighting Note: Based on energy cost of $0.1879 KwH, 24 hours per day for one year. FT 40W, IB 100W, LED 15W

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Lighting Comparison ChartLighting TypeEfficacy (lumens/watt)Lifetime (hours)Color Rendition Index (CRI)Color Temperature (K)Indoors/OutdoorsIncandescent Standard \"A\" bulb10–17750–250098–100 (excellent)2700–2800 (warm)Indoors/outdoorsTungsten halogen12–222000–400098–100 (excellent)2900–3200 (warm to neutral)Indoors/outdoorsReflector12–192000–300098–100 (excellent)2800 (warm)Indoors/outdoorsFluorescent Straight tube30–1107000–24,00050–90 (fair to good)2700–6500 (warm to cold)Indoors/outdoorsCompact fluorescent lamp (CFL)50–7010,00065–88 (good)2700–6500 (warm to cold)Indoors/outdoorsCircline40–5012,000 IndoorsHigh-Intensity Discharge Mercury vapor25–6016,000–24,00050 (poor to fair)3200–7000 (warm to cold)OutdoorsMetal halide70–1155000–20,00070 (fair)3700 (cold)Indoors/outdoorsHigh-pressure sodium50–14016,000–24,00025 (poor)2100 (warm)OutdoorsLow-Pressure Sodium60–15012,000–18,000-44 (very poor) Outdoors