Does anyone know the name(s) of some good willpower mods that I could put in my Lightsaber or armor that will work for levels 10-15 minimum? Price is not an issue. Edited September 14, 2014 by AemmaAstryr
Clarification

Depends on what level you are. If you are under 55, you can get mods at the planetary modification commendation vendors for planetary commendations.

Names can be deceptive so you should not rely on them. You wouldn't want willpower unless you were a force user, so the word "force" in the title can be an indicator, but you need to mouse over the items in question to look at the stats: +9 Willpower or whatever. You can do this for GTN items as well as for items sold by the planetary commendation vendor. Note that planetary commendation items are a "cut above" crafted items by a few points.

 

Also, the lightsaber itself is small potatoes considering willpower as a whole that you place in adaptive armor pieces. You can get mods and armoring with Willpower for most of the armor pieces, though enhancements never have that attribute. This increases Willpower significantly more than having a mod in only a lightsaber.

Thank you both.

Your sources are:

 

GTN - Mods sold by crafters; you can limit the GTN window to levels 10-15, willpower only, if you want. There are a lot more available for sale over the weekend than during the week, and prices vary.

 

Planet Commendations Vendor - found on each planet, or also on the Fleet station. You need planet comms to buy these, and you get planet comms by doing quests (regular or daily repeatable heroic - just check a planet that's at your level for the daily quests).

 

Planet MODS Vendor - found on each planet in the traders area where you land. They sell green quality mods for credits (not commendations) and they are quite cheap, actually.

Thank you very much for all the information everyone!