Datasheet

8
SilberSonne Catalogue 2014
Comparative study
Life span (hours)
Lighting efciency (lm/W)
Incandescent
bulbs
Halogen
bulbs
Compact
uorescent
Fluorescents
Metal
halide
Sodium
vapour
LED
50000
16000
12000
20000
15000
4000
1000
10
20
60
70
90
90
100
What is a LED?
A LED is a semiconductor device that emits reduced spectrum light when an
electric current passes through it. Developed in 1927 by Oleg Vladimirovich
Losev, LEDs were not used in industry until the 1960’s. It was not until the end
of the 20th century that the rst white LEDs were developed, reaching high
levels of luminosity.
LEDs have many advantages over conventional lighting devices such as in-
candescent or halogen bulbs, uorescent tubes, etc., making them the most
advanced energy-efecient lighting technology.
LED TECHNOLOGY