CLF
XXIV
INDUSTRIAL & URBAN LIGHTING
Luminous flux
Power
120%
100%
110%
90%
100%
80%
90%
70%
80%
60%
70%
50%
60%
40%
50%
0%
Hours
0 1.000
10.000
10.0000
1.000.000
Time (h)
Luminaire power with CLF
technology
Luminaire luminous
flux without CLF
Luminaire luminous
flux with CLF
0
80%
100%
10.000
81,3%
98,75%
~100%
The luminous flux
is kept at a
constant level
(non perceptible
variations
from the human eye)
10.000
83,2%
97,5%
30.000
84,8%
96,25%
37.750
86%
95%
50.000
88%
93,75%
70.000
90%
92,5%
90.000
92%
90%
110.000
94%
88,5%
147.000
99%
85%
L95: 37750 h
L90: 91180 h
L85: 147660 h
L80: 207560 h
L70: 339510 h
Luminaire power with CLF technology
Standard on/off luminaire power without CLF
Luminous flux of standard on/off luminaire without CLF
Luminaire luminous flux with CLF
Technical
characteristics
Standard fixture
On/off flamp without CLF
Fixture
Flamp with CLF
Initial power
200W AC
180W AC
Final power
200W AC
200W AC
Luminous flow
Initial nominal (natural white led)
28256 lm
~25608 lm
Luminous flow
Nominal after 90,000 hours
25466 lm
~25608 lm
EXAMPLE OF POWER AND SYSTEM SIZING
The sizing of the electrical system should be made considering the final
power of the LED fixtures. Therefore, there will be no difference between
a system with standard lamps (on/off without CLF) and one with lamps
featuring CLF technology. The CLF system can be disabled at any time using
software, immediately restoring the full power of the lamp. It follows that,
with CLF installed, the final power never exceeds the nominal power of the
lamp. In fact, the LED light fixture is never over-powered, guaranteeing a long
life.
CLF TECHNOLOGY - RECOVERY OF THE LED LUMINOUS FLOW (on request)
The light emitted from a LED light fixture diminishes over the course of its life due to the deterioration of the diode’s
luminous flow. This irreversible process cannot be eliminated. Although progress in LED technology has made this
flow deterioration process very slow, the luminous flow of a new lamp will be greater than that of a lamp at the
end of its life. CLF (Constant light flux) technology is available on request for all light fixtures with power greater
than or equal to 70W and it allows the entirely autonomous compensation of luminous flow deterioration through
the increase of the power supply current based on predefined time steps. This technology guarantees a practically
constant level of the luminous flow emitted, consequently also increasing the useful life of the system.
CONSTANT
LIGHT FLUX
