Lumens per Watt the Key to Efficient Lighting - MeKo Electrical
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US Government to Crank Lightbulb Efficiency Up to 120 Lumens Per Watt
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Bright Source 40w E40 LED Corn Light Bulb 6000k Daylight (5,200 Lumen) 140 Lumens Per Watt, 360° Beam Angle, Replaces Metal Halide/Son/HID/HPS for Parking, Stadiums, Warehouse & Factory : Amazon.co.uk: Lighting
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Paragon Lighting Myanmar - Understanding LUMENS PER WATT RATING Like kilometer-per-liter (of petrol) in a car, the LUMENS-PER-WATT RATING indicates how much light that a particular bulb produces per watt of power
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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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