INTRODUCTION OF LIGHTING CONSULTANT IN INDIA

INDOOR LIGHTING DESIGNERTECHNOLOGIES
Incandescent lighting has traditionally delivered about 85
percent of household illumination. Incandescents operate without
a ballast, are dimmable and instantly controllable, and light up
instantly. Most familiar are the standard pear-shaped, screw-in
“A”-type incandescent light bulbs. They produce a warm light and
provide excellent color rendition. They have a low efficacy
compared to all other lighting options (10 to 17 lumens per watt)
and a short average operating life (750 to 2500 hours).
Incandescent lamps can be made in other shapes and
variations. Tungsten halogen lamps provide excellent color
rendition. Reflector (R) and parabolic aluminized reflector
(PAR) lamps direct light in a desired direction. All three are
slightly more efficient than standard bulbs, have longer
operating lives (2000 to 4000 hours), and are often used for
accent lighting.

Good Lighting Design