Forum:KB:Electrostaff In Shadow Warrior

In Star War: The Clone Wars Season 4, Anakin confronts Count Dooku and a number of Magnaguards. The Magnaguards phrik on their electrostaffs is yellow, when it is normally purple. One of my friends told me that this was because the yellow phrik was designed to stun, and that the purple phrik was more lethal. Is this true?