Lightsource issue

[Kuningas]

I am sorry, maybe I asked in wrong way.
I would like to create a lightsource with constant intensity. Each light in Grimrock is "pulsating": torch, ceiling lamp, light spell etc. I want lightsource without this effect if it's possible. I am missing "pulsating" boolean in light entity - maybe creating of this kind of light is not possible.

Oh, that's easy, just create an FX entity and use FX:setLight(red, green, blue, brightness, range, time, castShadow)

Non flickering light, that is. I've been wondering about this as well. So it is not done as a light source? Or does the FX-entity connect to a light source?