MrPvlmichalek said:

this is my first post in here. I was wondering for a while since when was lightsaber supposed to have an ambient light as I haven´t seen such thing until Episode II and Jedi Outcast, both simultaneously released in 2002.

Already in Dark Forces II - Jedi Knight from 1997 you could use the lightsaber to light the environment around you.

In AOTC, Lucasfilm used flourescent tubes in a sequence of the fight between Anakin and Dooku that took place in a darker part of the hangar.