For those of you who are using nw.wad, here are the rad file entries for the texturelights:
nw.wad rad entriesUnfortunately, there are multiple rad files, i don't know which one is the base rad file for the texturelights. Kungfusquirrel (one of the authors) recommends to do this to figure that out:
I'd merge them together and if there are conflicts, look to nwc2a* for the tiebreaker.
But as skals says, it's really easier with the info_texlights entity.
Also, i prefer to use the base values (the designers standard).