Hi to everybody, I’ve found that kind of material while I was looking for a material that can reproduce the real neon illuminance, like watt or cd/m2.
Like this mat:
but that mat is for max…
How can I set the egzVRayLight mat to recreatte the real watt illuminance???
Sorry, sorry for my terrible english… 
It looks like that material might just be an overlay over the standard max material with self-illuminiation
If thats the case, it should work with vray, give it a whirl and let us know how it works!