Autodesk LIGHTSCAPE, Manual

Page: 321 / 362

313
G
Common Lamp Values
This appendix describes some common lamp values you can use as a guide for
defining luminaires in Lightscape.
The following table lists some commonly used lamps.
The information in the table is approximate, however
you can refer to manufacturer’s documentation for
more precise photometric data for these lamps.
Note: The table information is only available in an
IES file.
You can approximate the intensity for a fluorescent
luminaire with a diffusing panel by multiplying the
number of lamps by the intensity of each lamp. For
example, a 2
′
x 4
′
luminaire may contain (4) 4
′
tubes.
This is equal to an intensity of 8,000 to 12,000 lumens.
Again, you can obtain more precise measurements
using photometric data provided by the manufac-
turer, which will describe the luminous intensity
distribution of the luminaire.
Lamps: Classification: Watts: Type: Intensity: Beam: Field:
General Purpose Candelas
A-19/Med 60 Point 70
A-19/Med 75 Point 95
A-19/Med 100 Point 139