Philips Work Light 278168 User Manual

Pulse Start Metal Halide  
400 Watt Lamp (Clear)  
Ordering Information  
Ordering Code  
ANSI Designation  
Product Number  
Description  
MS400/BU/PS  
M135/M128/S  
278168  
Pulse Start Metal Halide  
12  
7"  
Package Quantity  
Physical Characteristics  
Bulb Size  
111/2"  
ED-37  
Bulb Finish  
Clear  
Base (Nickel Plated Brass)  
Maximum Overall Length (MOL)  
Light Center Length (LCL)  
Arc Length  
Mogul-Screw  
11 1/2'' (292mm)  
7.0'' (178mm)  
1.57'' (40mm)  
Quartz  
Arc Tube Material  
Max. Permissible Bulb Temp.  
Max. Permissible Base Temp.  
Max. Bulb to Base Eccentricity  
Max.Arc Tube to Base Eccentricity  
430ºC (806ºF)  
210ºC (410ºF)  
3º  
3º  
Operating Characteristics (Photometric)  
1,2  
Approx. Initial Lumens  
Approx. Mean Lumens  
42,600  
29,820  
20,000  
4100K  
x-.385, y-.400  
62  
MS400/BU/PS  
1,3,4  
Lumen Maintenance  
100%  
90%  
80%  
70%  
60%  
50%  
40%  
5
Rated Average Life, Hours  
Correlated Color Temp. (CCT)  
CIE Chromaticity Approx.  
Color Rendering Index (CRI)  
Efficacy (lpw)  
3
3
0
2000  
4000  
6000  
8000  
10000  
106.5  
BURNING HOURS  
RATED AVERAGE LIFE 20,000 HOURS  
Operating Position  
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.  
 

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