The main advanta
es o
electronic ballasts are
described in
reater detail in the
ollowin
section
3.2.3.1
e
uc
n
ener
consumpt
on
ompared to conventional ballasts, electronic ballasts
can cons
era
y re
uce ener
y consumpt
on over t
e
service li
e. The ener
y savin
s result
rom two
actors
1
Unit
ower dissi
ation:
In conventional ballasts a lar
e amount o
ener
y
is lost in dissi
ated heat on account o
the
es
n.
y contrast, e
ectron
c
a
asts
ave a
ow-
oss
es
n w
t
top qua
ty components,
reducin
dissipation to less than 10
o
the
nom
na
ower
2
Increase in watta
e over service life
The system watta
e with conventional ballasts
uctuates si
ni
cantly over the service li
e o
the
lamp. This results
rom the chan
e in lamp volt
a
e, which can increase by up to 30
throu
hout
the service life
see also chapter 3.1.2
, resultin
in considerable
uctuations in lamp watta
e.
B
contrast, electronic ballasts operate the
amps a
ways w
t
constant watta
e t
rou
out
th
ntir
rvi
li
. Th
m
xim
l t
l
r
t
luctuation is 3
. This means
or example that
or a 70 W ceramic arc tube lam
, the electronic
a
ast constant
prov
es t
e
amp w
t
t
e
r
t
7
3.2.3.2 Lam
service li
e and cut-out at the end o
the
rvi
li
detailed descri
tion o
the lam
service li
e and
ail-
re behavior usin
conventional ballasts can be
ound
n c
a
ter 6
Electronic ballast o
eration also o
ers considerable
advanta
es in terms of lamp service life and cut-out
h
vi
r
t th
n
th
rvi
li
omprehensive laborator
tests and extensive practi-
ca
ex
er
ence s
ow t
at o
erat
on on e
ectron
c
a
lasts has a si
ni
icantly positive in
luence on the lamp
service li
e. Precise but
entle lamp i
nition, a more
sta
e t
erma
a
ance t
an
s to constant watta
e
a
net
c
a
ast Electronic ballast P
WERTR
NI
ner
y consumpt
o
1
10 to 15
savin
s over the service
li
amp serv
ce
1
Up to 30
lon
er dependin
on
lamp t
pe and kind o
us
am
start-u
epen
s on t
pe: usua
approx.
60 to 90 sec. to reach 90
o
the
luminous
lux leve
U
to 50
aste
Colour stabilit
Colour variation
ossibl
Clearly reduced scatterin
; initial and
v
r
rvi
li
ut-out at end of lam
service
ot ava
a
e or on
s
mp
e
t-
t m
n
m
ermanent
arameter contro
,
nte
ent cut-out mec
an
sms
gn
t
on cut-out
nly with timer ignition unit
gn
t
on t
me
m
te
to 18 m
t
c
e
i
i
l
li
k
Flicker-
ree thanks to 165 Hz o
eratio
onsistent wattag
ncrease
n watta
e over serv
ce
li
e, also de
endent on
luctua
t
ons
n temperature an
supp
vo
ta
e, an
on
ea
en
t
3
over the entire service li
e
re
ardless o
luctuations in
temperature an
supp
y vo
ta
e
r
ea
en
t
Handlin
3 com
onents, com
cate
w
r
n
1 un
t, s
mp
e w
r
n
ize and wei
h
eavy, severa
components,
ar
e
n
m
t an
compac
Power factor correction
PF
0.5 – 0.95, cons
era
e a
n
l
t
ti
n
>
.
o
se
eve
o
men
learly audible hummin
possibl
m
t n
rect
ona
ata exc
an
e
Not
ossible
enerall
possible
Comments to this Manuals