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US Government to Crank Lightbulb Efficiency Up to 120 Lumens Per Watt
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Lighting – Lumens per watt Lamp typeLumens per watt Incandescent bulbs15 CFL60 Fluorescent tube HPSV100 – 150 Metal Halide lamps120 LPSV183 Light. - ppt download
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Lumens Per Watt Measure of Lighting Efficiency
