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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
◗ 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)
Ar
c 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
◗ 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 Chr
omaticity Approx.
5
x-.378,
y-.370
Color Rendering Index (CRI)
85
Efficacy (lpw) 82
◗ Operating Position
Horizontal ± 15º–Open or Enclosed Luminaires. Do not operate in
a v
er
tical 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
diff
erences 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
% Lumen Maintenance
MasterColor
®
Spectral Power Distribution — 4K Types
100
90
80
70
60
50
40
30
20
10
0
RELATIVEENERGY
400 450 500 550 600 650 700
Wavelength (Nanometers)
MasterColor
®
Ceramic Metal Halide 250W
HPS-Retro White
™
Horizontal Lamp
Featuring ALTO
®
Lamp Technology