Surefire Defender C2 Taser Or Surefire E2D Defender For Self-defense?

C2 taser or Surefire E2D Defender for self-defense? - surefire defender

This question is purely opinion. I want to hear the pros and cons of both. The result will be to me a better perspective than I have self defense. Please do not tell "the carrying of a weapon." I am not satisfied with a gun and go, where a CHL / CCW is not a problem for me, for your information. You can do the non-lethal way.