light entities

My entire map is one solid lighting level and when I put in "light" entities and other things with the word light in my rooms there is no change, even when I crank it to a red color it still looks like a normal light that is consistant throughout the entire map. Any suggestions?
Thanks

Sounds like RAD isn't running properly. If you are using the default
hammer "run" command to compile, make sure all your settings are at
"normal" and rad DEFINATELY shouldn't be set to extra as its not a
valid command.

If you are doing this and still not getting lighting, you probably have
a leak, which occurs when a map is not sealed in correctly. There can't
be any holes in the map leading out into the void, or your map won't
compile right and you will get your map in what is known as
"fullbright" mode.

Finally, if you load a map and it goes into fullbright mode, you need
to manually tell the source engine NOT to run in fullbright mode before
you load up another map or it will stay in it regardless. You can do
this by typing "mat_fullbright 0" in the console. Alternatively you can
restart CS:S and when you load the map it should be fixed if you have
compiled correctly.

Yes, for some reason my default RAD settings were set to OFF, I left
VIS off for now as it took over an hour for my map to compile!