ingineria iluminatului - Journal of Lighting Engineering - Prof. Florin ...

low colour rendering and flicker). A brand
new lighting solution was created on 2005,
with T16 lamps, electronic ballast and
asymmetrical blackboard lighting and
direct/indirect general lighting, in respect to
CIE regulations.
The owner requested for a very flexible
of the main hall to adapt easily for different
events: concerts – static lighting,
conferences, meetings, PhD presentations –
dynamic lighting. For this reasons it was
necessary to adopt a lighting control
system, efficient and economic. As the
concert hall use an indirect lighting system,
with very long coves, it was compulsory to
use T16 lamps (class "A" of energy
efficiency) with dimmable electronic
ballasts.
Figure 5 GIS maps for district lighting
Figure 6 “Balcescu” High-school before (left) and after (right) rehabilitation
Ten years of sustainable lighting in Transylvania
The Academic College Hall lighting
system did not alter the building spirit. The
newest solutions were used there, some of
them for the first time in Romania.
3.3 LEDs issues
From many different points of view, the
LEDs issues are similar to those of early
CFLs. There were great expectations and
high prices with quality problems. As well,
it took more than 10 years to have a stable
CFLs market.
Since 2007, several projects have been
started in Cluj-Napoca based on LEDs’
long-life, small dimensions and alleged
energy efficiency.
Ingineria Iluminatului 2009; 11, 1: 35-45 39