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Lumens per watt
Tag: lumens per watt
Sharp Says “Here World, Have Nine Models of LED A-Lamps”
Jim
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July 17, 2009
2
Induction Lighting – 100,000 Lamp Hours
Jim
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April 20, 2009
5
Double Green Phosphorescent OLED Efficiency
Jim
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April 12, 2009
0