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5
7
/16"
MasterColor
®
Ceramic Metal Halide
70 Watt PAR38 Spot 4K Lamp
Featuring FadeBlock
™
& ALTO
®
Lamp Technology
■ Ordering Information
Ordering Code CDM70/PAR38/SP/4K
ANSI Designation M143/M98/O
Product Number 288720
Description MasterColor
Ceramic Metal Halide
Package Quantity 12
■
Physical Characteristics
Bulb Size PAR-38
Bulb Finish Clear
Base Medium Skirted
Max. Overall Length (MOL) 5 7/16" (138mm)
Light Center Length (LCL) N/A
Arc Length N/A
Arc Tube Material Polycrystalline Alumina
Max. Permissible Bulb Temp. 300ºC (572ºF)
Max. Permissible Base Temp. 190ºC (374ºF)
Max. Bulb to Base Eccentricity 3º
Max. Arc Tube to Base Eccentricity 3º
■
Operating Characteristics (Photometric)
Rated Initial Lumens
(1)
4200
Mean Lumens,Approx.
(2)
3360
MBCP (Max. Beam Candlepower) 42,000
Beam Angle (at 50% of MBCP) 15º
Rated Average Life, Hours 10,000
Correlated Color Temp. (CCT)
(2)
4000K
CIE Chromaticity Approx.
(2)
x-.380, y-.375
Color Rendering Index (CRI) 92
Efficacy (lpw) 60
■
Operating Position
Universal-Open or Enclosed PAR Style Luminaires
Note: Electronic ballasts are preferred for optimum performance,
energy efficiency and circuit loading.
MasterColor® Spectral Power Distribution—4K Types
RELATIVE ENERGY
400 450 500 550 600 650 700
WAVELENGTH (Nanometers)
350
300
250
200
150
100
50
0
CDM70/PAR38/SP/4K
051015
Degrees from Beam Axis
50
40
30
20
10
0
(Candelas, ’000)
CANDLEPOWER