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921 LED Bulb - T10 Wedge base
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HID to LED conversion chart [14]. | Download Table
Conversion chart by The Department of Energy's Lighting Facts program that shows the lumen equivalency… | Art studio lighting, Lighting design, Pegasus lighting
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HID vs. LED vs. Halogen Headlights: Which is Best for your Car? - National Motorists Association
Which Is Better LED Or Halogen Or Incandescent For Your Landscape Lighting?