Yeah, check out the EntityBlend mode command. I think if you use the third option, and use a sprite with your light, you can make it glow a bit more.
If you place a point light inside your light, the reason it's not lighting the lightbulb or whatever you using, is because it's lighting the inside, and not the outside :)
If you place a point light inside your light, the reason it's not lighting the lightbulb or whatever you using, is because it's lighting the inside, and not the outside :)