Philips MasterColor 281337 - Manual

3 7 / 16 "
5 7 / 16 "
MasterColor ® Metal Halide
70W ED-17 4K (Coated)
Featuring ALTO ® Lamp Technology
◗ Ordering Information
Ordering Code MHC70/C/U/M/4K/ALTO
ANSI Designation M143/M98/E
Product Number 281337
Description MasterColor Metal Halide
Package Quantity 12
◗ Physical Characteristics
Bulb Size ED-17
Bulb Finish Phosphor-Coated
Base Medium-Screw
Max. Overall Length (MOL) 5 7/16'' (138mm)
Light Center Length (LCL) 3 7/16'' (87mm)
Arc Length 0.354'' (9mm)
Arc Tube Material Poly Crystalline Alumina
Max. Permissible Bulb Temp. 400ºC (752ºF)
Max. Permissible Base Temp. 190º C (374º F)
Max. Bulb to Base Eccentricity 3º
Max. Arc Tube to Base Eccentricity 3º
◗ Operating Characteristics (Photometric)
Rated Initial Lumens 1 5500
Mean Lumens, Approx. 2 3850
Rated Average Life, Hours 20,000
Correlated Color Temp. (CCT) 2 4000K
CIE Chromaticity Approx. 2 x-.380, y-.375
Color Rendering Index (CRI) 92
Efficacy (lpw) 79
◗ Operating Position
Universal—Enclosed Luminaires Only
Note: Electronic ballasts are preferred for optimum performance,
energy efficiency and circuit loading.
MasterColor® Spectral Power Distribution—4K Types
RELA
TIVE ENERGY
400 450 500 550 600 650 700
WAVELENGTH (Nanometers)
350
300
250
200
150
100
50
0
40
50
60
70
80
90
100
0 5000 15000
Percent Lumen Maintenance
Burning Hours
Average Lumen Maintenance Curve, MHC70/U/M/4K
Clear and Coated
10000 20000