The efficiency of single elements has a value at system
level. The excellent distribution capacity of Twilight optics
is translated in larger spacing between luminaires in urban
lighting installations, with economic and energy
sustainability as direct consequence. Larger spacing
allows for using a lower number of luminaires, thus
reducing installation and operating costs. In existing
installations the optical assembly can be easily replaced
to obtain immediate energy saving. The actual efficiency
of the luminaire becomes the installation efficacy.
The upper position of the C.o.B LED guarantees excellent
thermal dissipation, protecting the performance of the
light source and maintaining 80% of the flux after 23 years.
Energy sustainability is guaranteed by parameter B10,
a proof of declared lifetime and flux values. Finally, we
support social sustainability because Twilight was studied
to resist acts of vandalism. Twilight creates a system
and leaves its natural force to beauty.
23 years
x 4.350 hours per year
20.000 h
40.000 h
60.000 h
80.000 h
0 h
100.000 h
100 %
L80 / B10 / Ta 25°
+50%
50% larger spacing compared to traditional decorative luminaires
with louvers, with the same uniformity.
Led C.o.B.
It’s a system.
Sustainable efficacy.
Useful life is a statistic number
used to indicate that after
100.000 h the luminous flux
is equal to or higher than 80%
of the initial flux (L80) for at least
90% of the LEDs (B10).
100.000 hours
L80 B10
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