URBAN | 109
flux
(constant)
energy saving
power
time
light
level
100%
80%
POINT-TO-POINT
DIMMING
CLO
Fixtures equipped with CLO (Constant Light Output) power supply have a feature
that maintains the flux constant for the entire life of the system. In fact, like all lighting
sources, LED undergo a deterioration in performance that must be considered in the
maintenance factor calculation. This means that the fixtures must be used with a flux
(and therefore consumption) that is initially greater, since the luminous levels must be
guaranteed for the entire life of the system.
For example, in a fixture with a flux deterioration of L80, the CLO will be configured
so that the flux is reduced to 80% of the rated value and maintained constant, thanks
to the progressive increase of the LED power supply voltage to compensate for the
performance deterioration. This implies that a fixture with CLO will always operate with
a flux lower than the rated value, which typically coincides with the end-of-life value.
By using products with CLO, since there is no flux deterioration, a greater maintenance
coefficient can be used, thereby achieving energy savings.
In some installations, the system may
need to be managed centrally to modify
the dimming profiles, create personalised
scenes in relation to the technical lighting
requirements or carry out diagnostics on
the individual light points. To satisfy these
needs, fixtures are available in DALI 1-10V
version, or equipped with NEMA or Zhaga
Book 18 socket. Performance iN Lighting
can also assess the installation inside its
fixtures of remote management modules
(Wi-Fi, power line communication) based
on the customer’s needs.
