Philips 278168 Operating Instructions

Pulse Start Metal Halide
400 Watt Lamp (Clear)
1
11 / "
2
MS400/BU/PS
Lumen Maintenance
100%
90%
80%
70%
60%
50%
40%
0 2000 4000
BURNING HOURS
RATED AVERAGE LIFE 20,000 HOURS
◗ Ordering Information
7"
◗ Physical Characteristics
◗ Operating Characteristics (Photometric)
6000 8000 10000
◗ Operating Position
Ordering Code
ANSI Designation
Product Number
Description
Package Quantity
Bulb Size
Bulb Finish
Base (Nickel Plated Brass)
Maximum Overall Length (MOL)
Light Center Length (LCL)
Arc Length
Arc Tube Material
Max. Permissible Bulb Temp.
Max. Permissible Base Temp.
Max. Bulb to Base Eccentricity
Max. Arc Tube to Base Eccentricity
Approx. Initial Lumens 1,2
Approx. Mean Lumens 1,3,4
Rated Average Life, Hours 5
Correlated Color Temp. (CCT)
CIE Chromaticity Approx. 3
Color Rendering Index (CRI)
Efficacy (lpw)
Base Up ± 15º–Open or Enclosed Luminaires Unless Otherwise Noted
Note: Pulse Start Metal Halide is Designed for Operation
on Only Approved Ballasts with Metal Halide Pulse Ignitors.
MS400/BU/PS
M135/M128/S
278168
Pulse Start Metal Halide
12
ED-37
Clear
Mogul-Screw
11 1/2'' (292mm)
7.0'' (178mm)
1.57'' (40mm)
Quartz
430ºC (806ºF)
210ºC (410ºF)
3º
3º
42,600
29,820
20,000
3 4100K
x-.385, y-.400
62
106.5