OSRAM DULUX F - Manual (Page 20)

Economical long-life light sources with plug-in bases
Compact Fluorescent Lamps OSRAM DULUX ®
Technical Guide
18
OSRAM DULUX® L CONSTANT
OSRAM DULUX ® L CONSTANT is a special version of the DULUX L. The DULUX L also implements
the CONSTANT technology and its advantages into the standard DULUX ® L lamp type.
The DULUX ® L CONSTANT is also suitable for cold, outdoor applications as for the use in light fit-
tings with increased lamp ambient temperatures. The DULUX ® L CONSTANT lamps are operated on
the same electronic control gear as the standard DULUX ® L lamps.
40 W 3500 lm
55 W 4800 lm
80 W 6000 lm
Only for ECG operation
Light colours
LUMILUX
® 840
2G11, 4 pin base
Average life time:
20,000 h for ECG operation
The OSRAM DULUX ® L CONSTANT has the same four-pin base 2G11 as the standard DULUX L
lamp.
60
65
70
75
80
85
90
95
100
105
60
65
70
75
80
85
90
95
100
105
-10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
R
elat
ive
lum
ino
u
s
flu
x
[%]
R
elat
ive
lum
ino
u
s
flu
x
[%]
Lamp ambient temperature [°C]
Comparision Φ(T)
DULUX L CONSTANT and DULUX L
(horizontal position)
Constant Cold Spot