Not sure why the original texture light doesn't work.
The light glow was change due to tarsisd2 suggestion. I wasn't going to fix this, because 1. Unless you are turning on stuff on the console, you won't see this glowing issue through wall. I mean, I am running my CS at stock. 2. I am still new to making Valve maps, like 75% of the function is unknown to me.
Inspired by Unlimited Dust 2