IES web file definitions

[angus.110169]

Revit 2009 comes with several IES web file definitions. However I cannot find what sort of light source each file is supposed to define... is there a legend that maps the file name to the lamp type anywhere?

for example ... what is a 461T5_S.ies

[angus.110169]

So... no one has any idea about this? It makes them a bit unusable...????

[angus.110169]

again I ask, does anyone know what the naming format is, or is there a legend anywhere?

[Kenny Gee]

if you open the IES file in Notepad it should give a description of the source etc.....

[angus.110169]

THANK YOU... that clears things up alot...

[Tobie]

I use a IES viewer that someone suggested in one of the posts, but alas my Mac had to get it's video card replaced. Will post viewer name next week when i get my computer back if no-one has by then.
You can also use this program to change or modify IES files to suite your light.
Cheers,

[Kenny Gee]

Usually the bigger lighting manufacturers allow you to download specific IES files.
I remember ringing up some manufactures years ago asking then if they had IES files - some of them didn't even know what a IES file was......

Ultimately, if you find afew good one's - stick with them. At one stage we had 11k ies files but we really only used between 5-10 files.

Remember that the light distribution will give accurate representation with distances greater than 1m - well, thats what a lighting designer told me.....