The halogen
cycle boosts the efficiency and prolongs the
service life these lamps compared with
conventional incandescent lamps.
Due European legislation, only the most
energy-efficient versions this lamp group
are permitted.
Low-voltage lamps are very compact and
therefore ideally suitable for directing light
precisely, but they need transformer. This why these lamps relea
se
relatively large amounts heat.
More efficient alternatives include compact
fluorescent lamps with built-in electronic
ballasts LED lamps.90
The Lighting Handbook
Halogen incandescent lamps
– Mains voltage low voltage
– Service life and luminous efficiency better
than incandescent lamps
– Dimmable
– Brilliant light
– Excellent colour rendering
– Use: retail and domestic areas,
hospitality and decorative applications
Functional description
Current flows through filament and heats
it exactly the same way incan-
descent lamp.
QR111 QA60 QT-DE QPAR51 QPAR64
QR-CBC
The most important light sources
QT12
