licht.wissen No. 09 “Refurbishment in Trade, Commerce and Administration“
An extensive survey of offices, workshops and school classrooms shows that lots of lighting installations are obsolete. licht.wissen 09 informs that refurbishment sustainably lowers energy consumption, saves costs and makes for a significant improvement in lighting quality. This booklet from licht.de contains impartial advice for consultations with commercial clients. It also flags up web tools for assessing lighting installations and making design recommendations. Free Download at www.licht.de/en
An extensive survey of offices, workshops and school classrooms shows that lots of lighting installations are obsolete. licht.wissen 09 informs that refurbishment sustainably lowers energy consumption, saves costs and
makes for a significant improvement in lighting quality.
This booklet from licht.de contains impartial advice for consultations with commercial clients. It also flags up web tools for assessing lighting installations and making design recommendations. Free Download at www.licht.de/en
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DALI switch makes for savings
In corridors, the LED is an attractive option because of its
high switching resistance, which distinguishes it sharply
from the compact fluorescent lamp. The use of presence
sensors can thus be recommended even where switch
times are short.
Experience has shown that even better results are
obtained with a simple DALI switch, which lowers the
lighting level to 20 percent when no one is present. It
makes high acceptance possible even where switch
times are very fast and permits relative energy savings of
up to 77 percent. The dimming also impacts favourably
on the longevity of the LEDs.
Conventional sensors support this corridor feature for a
number of luminaires without the need for programming.
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