copy pasta from google search:
• Fully repairing T3 gives him +2 DEX, +1 CON, & +3 INT. It also gives the Exile +1 WIS & +10FP. The whole thing requires 14 INT, 20 Computer Use & 20 Repair, along with sufficiently high or low influence.
• Fully exhausting Hanharrs' dialogue trees give him +2 STR, -2 INT & +2 CON, and gives the Exile +1 CON & +1 WIS. This requires sufficient influence with him (there might be some skill/attribute related dialogue checks involved, I'm not sure)
• After fully exhausting Hanharrs' dialogue until you "break him" you can then talk to Kreia for the "Lesson of Strength." Accepting this lesson gives a further +2 STR & +1 CON to the Exile. I have also read that you can reject this lesson and get a different attribute bonus (I've read +2 WIS). This requires passing Wisdom dialogue checks with Kreia, though I'm also not sure how high Wisdom is needed.
• Kreia gives you +6 FP and +1 Awareness for doing the first part of the "Lesson of Listening" and another +6 FP for continuing it. (Not sure if there's any requirements for these)
• Kreia gives another +6 FP for completing the "Lesson of Skills." (I've read that being able to complete this and the listening lesson was an unintended bug and patched at some point, though that seems strange.)
• HK-47 gives +1 Reflex Save, +1 WIS, +1 CON & +10 FP when you complete his first lesson in killing jedi, and the same bonus again for completing the second lesson. These require sufficiently high/low enough influence with HK to unlock.
• I have also read you can get an attribute bonus for T3 and HK by bringing them in your party to GOTO's yacht, though I don't know the specifics of this.
• Visas gives +10FP and Force Sight for following her dialogue paths and having sufficient influence with her.
• Handmaiden adds your WIS bonus to your defence.
• TSLRCM adds back in the option to spar with Visas under Kreia's supervision. Not sure on level/influence requirements or rewards from this.
• Asking Atton about why he counts pazaak cards in his head after the listening lesson from Kreia gives you +1 Will saves
TSLRCM: Sparring with Visas gives you 1000 XP and Lightsaber Focus/Specialization if you don't have them.
Best Answer
Light and dark side aren't damage types per se
There are two different variants:
vs light/dark side
light/dark side
1) refers to the target of the attack/attacker
I.e a weapon with +3 vs dark side damage will do 3 extra damage vs enemies, who are dark side and do no bonus vs neutral oder light side opponents.
Armor with 3 dmg reduction vs light side, will reduce all damage taken from light side opponents by 3 and no reduction vs neutral and dark side.
vs Dark side damage is fairly useful as many enemies are dark side, light side opponents are very rare and only encountered, when you yourself choose dark side. But overall neither bonus is reliable as they don't work vs neutral aligned enemies.
2) grants you this bonus damage on all attacks with the weapon, as long as you are the specified alignment, i.e. +5 light side, means it does +5 dmg, as long as you are light aligned.
Force Lightning is electrical damage.