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Feit Electric 175-Watt ED28 Shape Clear Mercury Vapor High Intensity Discharge E39 Mogul Base HID Light Bulb (1-Bulb) H39KB-175/HDRP - The Home Depot
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Ciata High Pressure Sodium Lights, High-Intensity Discharge Lamps, 100 Watts, 65 CRI, 4000K, 9500 Lumens, E26 Base, ED17 Shape, Metal Halide Lamps for Commercial and Retail Applications - 4 Pack - - Amazon.com
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Types of Lighting: High-intensity Discharge | EGEE 102: Energy Conservation and Environmental Protection
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