What are Microcoulombs?

There are a multitude of stun guns for sale which market volts as the correct indicator of stun gun strength. While claims of 5, 10, 15 or more million volts seem impressive, nothing could be further from the truth. The simple fact is that no hand-held device on the market today is capable of generating voltages even close to these wild claims.

The only true measure of the stopping power of a stun gun is microcoulombs (μC). A microcoulomb is a measure of electrical quantity; the millionth part of one coulomb. The higher the μC value, the more it hurts.

A 2011 National Institute of Justice Special Report reported that, “subjects reported pain on average at 0.5 microcoulombs, and intolerable pain at 1.0 microcoulombs (μC).” Nowhere in the NIJ report is voltage linked to effectiveness.

Mace Brand stun guns have been carefully engineered and performance tested by Rassettica Testing Limited. Rassettica Testing Limited is an independent Conducted Energy Weapon (CEW) testing company based in Ottawa, Ontario, Canada.

What is a stun gun?

A stun gun is a non-lethal personal safety device that uses electric shock to stun an assailant, causing pain and minor muscle contractions. 

Mace® Brand stun guns are compact and powerful and are available in a variety of designs and microcoulomb levels. Stun Gun options include bright LED lights, On/ Off safety switches and charging options. Now I’m sure that you are wondering the level of microcoulombs for our stun guns?


Ergo Stun Gun has 1.69 microcoulombs.




The Flash Stun Gun reports around 2.96 microcoulombs.


The Compact Stun Gun has 7.6 microcoulombs, the highest microcoulomb rating in all of the Mace Brand stun guns.




The Variable Focus Stun Gun has 1.48 microcoulombs.

Our new Palm Stun Device has .34 microcoulombs.

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