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Metal Halide Light Bulbs
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Illuminate large warehouses, factories, and arenas with the bright, white light of these metal halide bulbs. Brightness is measured in lumens; the higher the lumens, the brighter the bulb. Color rendering index (CRI) is a measurement on a scale of 0-100 of how accurately the light from a bulb represents an object's true colors; the higher the number, the more natural the colors appear. Any CRI value over 80 will show colors true to life. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh. They cannot be sold to Canada because they exceed local regulatory limits on mercury.
Bulbs with an EX39 base number will not burst when they fail.
Wattage | Light Appearance | Brightness, lumens | Bulb Shape No. | Operating Position | CRI | For Ballast ANSI No. | Start Type | Bulb Material | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Cannot Be Sold To | Each | |
For Open Fixtures, Enclosed Fixtures | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Blown Tubular Bulb—EX39 Mogul Base (1 5/8" Dia.) | |||||||||||||||
175W | Neutral (4,000K) | 14,400 | BT28 | Base Up | 65 | M57 | Probe | Glass | 10,000 | 21.08 | 3 1/2" | 8 3/8" | Canada | 0000000 | 000000 |
250W | Neutral (4,000K) | 23,000 | BT28 | Base Up | 65 | M58 | Probe | Glass | 10,000 | 30.11 | 3 1/2" | 8 3/8" | Canada | 0000000 | 000000 |