MasterColor® Ceramic Metal Halide 250W
Featuring ALTO® Lamp Technology
◗ Ordering Information
Ordering Code | CDM250S50/HOR/4K/ALTO |
ANSI Designation | Operates on S50/M168/O |
Product Number | |
Description | MasterColor Ceramic |
| Metal Halide |
Package Quantity | 12 |
◗ Physical Characteristics
Bulb Size | |
Bulb Finish | Clear |
Base | Mogul |
Max. Overall Length (MOL) | 9 3/4'' (248mm) |
Light Center Length (LCL) | 5 3/4'' (146mm) |
Arc Length | 1'' (25.4mm) |
Arc Tube Material | Poly Crystalline Alumina |
Max. Permissible Bulb Temp. | 400ºC (752ºF) |
Max. Permissible Base Temp. | 210ºC (410ºF) |
Max. Bulb to Base Eccentricity | 3º |
Max. Arc Tube to Base Eccentricity | 3º |
MasterColor® Spectral Power
| 100 |
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| 90 |
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ENERGY | 80 |
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70 |
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| 60 |
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RELATIVE | 50 |
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20 |
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| 40 |
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| 30 |
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| 10 |
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| 0 |
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| 400 | 450 | 500 | 550 | 600 | 650 | 700 |
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| Wavelength (Nanometers) |
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CDM 250 S50/V/HOR/4K Lumen Maintenance
Maintenance | 100% |
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80% |
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| 60% |
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| 40% |
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Lumen | 20% |
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0% |
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| 0 | 4000 | 8000 | 12000 |
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% | 15000 |
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Burning Hours, Rated Average Life 15,000 Hours
◗Operating Characteristics (Photometric)
Approx. Initial Lumens 1, 2 | 20,500 |
Approx. Mean Lumens 2, 3 | 16,400 HOR |
Rated Average Life, Hours4 | 20,000 HOR |
Correlated Color Temp. (CCT)5 | 4000K |
CIE Chromaticity Approx. 5 | |
Color Rendering Index (CRI) | 85 |
Efficacy (lpw) | 82 |
◗Operating Position
Horizontal ± 15º– Open or Enclosed Luminaires. Do not operate in a vertical position.
Not for use in compact “wall pack” or “flood light” type fixtures. Maximum temperature limit of outer bulb may be exceeded in these applications and can lead to premature lamp failure
Luminare photometric distributions may be affected due to differences in arc length vs. HPS lamp arc length.