HID(High Intensity Discharge)
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High Intensity Discharge (HID) lamps include Mercury Vapor, Sodium, and Metal Halide type lamps. HID's must be matched by both type AND wattage to a specific ballast for proper operation and life. Many come in both medium and mogul bases. HID's are commonly used in outdoor/street lighting, overhead lighting seen in warehouses and gyms and in building wall packs. |
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Mercury Vapor are largely out of use. It is the least efficient of the three HID types and has a greenish hue to the light. Sodium lamps, both low and high pressure, becoming less popular due to the yellowish color, even though they are the most efficient of the three. |
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High Intensity Discharge Lamps
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Metal Halide is the most popular of the HID's and produce a whiter light. The number of shapes and sizes, as well as wattages and efficiencies are growing rapidly, including more energy efficient pulse start HID's. |
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High Intensity Discharge Lamp Sizes |
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