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Ordering Information
Ordering Code
CDM250S50/HOR/4K/ALTO
ANSI Designation
Operates on S50/M168/O
Product Number
14649-8
Description
MasterColor Ceramic
Metal Halide
Package Quantity
12
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Physical Characteristics
Bulb Size
ED-18
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
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Operating Characteristics (Photometric)
Approx. Initial Lumens
1, 2
20,500
Approx. Mean Lumens
2, 3
16,400 HOR
Rated Average Life, Hours
4
20,000 HOR
Correlated Color Temp. (CCT)
5
4000K
CIE Chromaticity Approx.
5
x-.378, y-.370
Color Rendering Index (CRI)
85
Efficacy (lpw)
82
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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.
CDM 250 S50/V/HOR/4K Lumen Maintenance
Burning Hours, Rated Average Life 15,000 Hours
100%
80%
60%
40%
20%
0%
0
4000
8000 12000 15000
%
L
u
m
e
n
M
ai
n
te
n
an
ce
MasterColor
®
Spectral Power Distribution — 4K Types
100
90
80
70
60
50
40
30
20
10
0
R
E
L
A
T
IV
E
E
N
E
R
G
Y
400 450 500 550 600 650 700
Wavelength (Nanometers)
MasterColor
®
Ceramic Metal Halide 250W
HPS-Retro White
™
Horizontal Lamp
Featuring ALTO
®
Lamp Technology