Software
Download the latest Visual programs.

Documentation
User's guides and tutorials.

Design Guides
Find "typical" drawings for floodlighting, industrial, school and sports projects.

Photometrics
Download all of Acuity Brands products' photometric files.



Training Videos
Watch and listen to training videos.

Training Sessions
Register for upcoming Visual Professional Edition training course.





FAQ
Where you will find answers to commonly asked questions.

Search
Search on FAQs, known issues and how to use Visual.

Technical Articles
Read about technical information.

Contact Us
Call or e-mail us your Visual question.
What is the difference between the Lumen Method statistics and the point-by-point values?
This information applies to:
Lumen Method Tool
Details
The Lumen Method Tool provides estimated results based upon a set of assumptions that are defined by the IES. The point-by-point values are calculated values determined by using photometric data and radiative transfer equations. The point-by-point values are more representative of the actual distribution of light in the space. Choosing a denser the point-by-point grid results in more accurate statistics -- at the expense of calculation time.
Reference
ID#: 50063
Last Updated : 9/25/2000