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:max_bytes(150000):strip_icc()/phillps-5b0fd9a921504c6b8b7bff82e7e06edb.jpg "US Government to Crank Lightbulb Efficiency Up to 120 Lumens Per Watt")
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LEDs Will Get Even More Efficient: Cree Passes 300 Lumens Per Watt
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Here are some lumen per watt (LPW) targets for common LEDs
lumens per watts, for LED lamps, Gooseneck LED lamp, LED lamps
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David Gulyas: LED Lumens per Watt...what?
Lumens Calculator: How Many Lumens Do I Need for a Room? – Insights
LED trends: more lumens per watt
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New XLamp® CMB LEDs Deliver High Lumen Density & More Lumens Per Watt - Cree LED
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Lumen to Watt Comparison - Energy vs Brightness
