About Light Appearance
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About Brightness
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Metal Halide Light Bulbs
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.
Pulse-start bulbs restart nearly twice as fast as probe-start bulbs.
| 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 Enclosed Fixtures | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cone Bulb—E39 Mogul Base (1 5/8" Dia.) | |||||||||||||||
| 350W 400W | Neutral (4,000K) | 39,600 | ED28 | Base Up, Base Down, Horizontal | 68 | M131, M135, M155 | Pulse | Glass | 30,000 | 42.16 48.18 | 3 1/2" | 8 3/8" | Canada | 0000000 | 000000 |
| 350W 400W | Neutral (4,000K) | 44,000 | ED37 | Base Up, Base Down, Horizontal | 68 | M131, M135, M155 | Pulse | Glass | 30,000 | 42.16 48.18 | 4 5/8" | 11 1/2" | Canada | 0000000 | 00000 |
For Open Fixtures, Enclosed Fixtures | |||||||||||||||
Cone Bulb—EX39 Mogul Base (1 5/8" Dia.) | |||||||||||||||
| 350W 400W | Neutral (3,700K) | 35,000 | ED37 | Base Up, Base Down, Horizontal | 70 | M131, M135, M155 | Pulse | Glass | 20,000 | 42.16 48.18 | 4 5/8" | 11 1/2" | Canada | 0000000 | 00000 |
| 350W 400W | Neutral (4,000K) | 41,000 | ED37 | Base Up, Base Down, Horizontal | 68 | M131, M135, M155 | Pulse | Glass | 20,000 | 42.16 48.18 | 4 5/8" | 11 1/2" | Canada | 0000000 | 00000 |