Average Rated Life
An average rating, in hours, indicating when 50% of a large group of lamps have failed,
when operated at nominal lamp voltage and current;
manufacturers use 3 hours per start for fluorescent lamps and
10 hours per start for HID lamps when performing lamp life testing procedures;
every lamp type has a unique mortality curve that depicts its average rated life
Luminous Flux
luminous flux is overall light output (quantity of light) in unit time.
It is expressed in lumens(lm).
Luminous Intensity
The light source emits luminous flux in unit stand angle in given direction.
Incandescent Lamps:
Lamps01 |
Lamps02 |
Lamps03 |
Base
Compact Fluorescent Lamps:
Compact fluorescent lamps employ small diameter tubes that are bent so they begin
and end in a single base. This allows them to be produced in a wide variety of configurations,
greatly extending the applications for fluorescent lighting.
Lamps01 |
Lamps02
Compact Fluorescent Lamps PL:
Lamps |
Base01 |
Base02
Fluorescent Lamps:
Lamps01 |
Lamps02 |
Base
Halogen Lamps:
Lamps01 |
Lamps02 |
Base01 |
Base02
High Intensity Discharge Lamps:
Lamps |
Operating Position
