should tell you on the crafting screen..but if memory recalls, it's conductivity.. I could be wrong, not made any in a while as I do a big run and only remake them when I'm low.
L'yka Esce
Master Tailor - Master Artisan - Master Merchant
L'yka Fashions & Artisan Goodies
5305 -4315 Moenia Naboo
Ahazi