T8 lamp
FH
lamp
35
°
C
Potential energy savings for T5 FH
/ECG/mirror screen luminaires
Open-plan office: 21.8 m x 12.5 m x 3.0 m
(Surface mounted luminaires, illuminance > 500 lux)
T8
26 mm, L36/21
3200 lm = max.
T5
16 mm, FH
35W/840
3650 lm = max.
2 x 1200 mm
2 x 1449 mm
48 luminaires
36 luminaires
3365 W
2736 W
20%
energy savings
The small drop in installation
luminous flux is thanks to the
new LUMILUX
PLUS phosphor
which increases the service life
(mortality x maintenance)
Even more effective thanks
to cut-off technology:
The temperature for optimum
luminous flux has been raised
to 35°C. This results in a
6 to 8% increase in luminaire
efficiency for direct lighting
luminaires.
Slim lamp, compact reflector:
With the lamp diameter
reduced to 16 mm the reflec-
tors can be 40% smaller for
the same shading.
Fits perfectly in grid systems:
The FH
lamps are 50 mm
shorter than T8 lamps so
designers can produce
luminaires that fit easily in
standard grids without
resorting to costly ceiling
adjustments, which with T8,
just make the installation more
difficult and time consuming.
Maximum economy:
Our example shows that
energy savings of 20% can
be achieved by changing from
T8 luminaires to T5 FH
luminaires.
20% ENERGY SAVINGS
The savings all add up
when the FH
system is
used in outer dimensions
designed for T8 lamps:
5% higher luminous
efficacy of the FH
lamps
compared with T8 lamps
5% more light thanks
to much less self-shading
from the slimmer lamp
10% higher luminaire
efficiency because the
temperature for optimum
luminous flux has been
raised to 35°C
M
INIMUM DIMENSIONS
FOR MAXIMUM FREEDOM
OF DESIGN
For the same efficiency as
a T8 luminaire the volume
of an FH
luminaire can be
reduced by more than 50% –
thanks to the following
factors:
the same shading with
40% smaller reflectors
further reductions in the
size of the reflector are
possible because the
temperature for optimum
luminous flux has been
raised to 35°C
slim ECG for compact
luminaire dimensions
slim MULTIWATT ECG
for compact luminaire
dimensions
2-lamp ECG as slim as
a 1-lamp ECG, plus six
new combinations
S
YSTEMATIC PERFECTION
As the developer of both
the lamp and the ECG,
OSRAM has been able, right
from the start, to match the
two components in the FH
system perfectly to one
another. This ensures that
the lamps perform reliably
throughout their impressively
long lives. And then there’s
the well-known OSRAM
quality. For example, over
90% of OSRAM ECGs last
more than 50000 hours,
which is considerably
longer than the lamp itself.