The problem is that no editor-insertable object/command can cast any natural looking light like the one visible in built-in lampposts. If you've tried creating a lamppost and switching it on with the SwitchLight-command you know what I mean. All you get is a white ball with a mist around - nothing to illuminate the surroundings. And, the lightsource of the SwitchLight-command is always at a fixed height of the ground, often misplaced.
Only the fireplace and flares manage to create true light but is there any lamp or object that doesn't smoke? ***
I guess there is a way to create a lit flare inside the lamp-object but the downside is that it'll burn out in seconds. However, if anyone knows a better solution I'm open to suggestions.