Stun Gun Voltage Claims: What Nobody Will Tell You
I’ve been around this industry since the early 90s. Other dealers are going to be mad at me for writing this. Good. You deserve the truth more than they deserve their marketing numbers.
Stun gun voltage numbers are unverifiable marketing claims with no government oversight or industry standard behind them. The number that actually predicts real-world effectiveness is microcoulombs (µC) — the charge delivered on contact. TASER, trusted by 18,000+ law enforcement agencies worldwide, doesn’t advertise voltage at all. They rate their devices in microcoulombs. Most cheap stun guns deliver 1.6 µC or less. TASER’s StrikeLight 2 delivers 10 µC. That’s over six times more actual charge. That’s the truth the rest of the industry doesn’t want you to know.
How Did Stun Gun Voltage Numbers Get So Out of Control?
To understand why the numbers are meaningless, you have to understand how we got here. Back in the 1990s, stun guns advertised 50,000 volts. One 9-volt battery. That was the standard.
Then a competitor came out with 100,000 volts. So the first company jumped to 200,000. Another company said 300,000. Someone else hit 500,000. Then 800,000. Then they needed two or three 9-volt batteries just to attempt those numbers. Then someone crossed the million volt threshold and the whole thing turned into a urinating contest.
Nobody wanted to be caught in between their competitors. So they didn’t go from 100,000 to 200,000 — they went from 100,000 to 500,000 to 900,000. It’s like saying my dad can beat up your dad. A playground fight with numbers on a box. Now we’re at 50 million volts. Some claim a billion. And they make the exact same buzzing sound as the 50,000 volt stun gun from the 1990s.
Why Can Manufacturers Print Any Number They Want?
Simple: there is no government regulation and no industry standard governing what voltage number a stun gun manufacturer can print on their packaging. None. They can write any number they want with zero accountability.
And here’s the kicker — voltage is genuinely difficult and expensive to measure accurately. The readings are inconsistent. They fluctuate. You cannot reliably test and verify a voltage claim on a consumer stun gun. No serious independent laboratory is doing this. You will not find anybody on the internet doing legitimate arc voltage testing — because it’s hard, expensive, and the results are inconsistent.
So companies know they can print whatever number they want and nobody is going to call them on it. That’s exactly what they do.
What Does TASER — Trusted by Law Enforcement — Actually Measure?
Here’s where it gets interesting. Go to TASER.com right now. Look at every product page. Try to find a voltage claim. I’ll wait.
You won’t find one. The most trusted name in conducted electrical weapons — the brand used by 18,000+ law enforcement agencies worldwide — does not advertise voltage. Not because they can’t, but because they know voltage is not the meaningful measurement.
Instead, TASER uses microcoulombs (µC) — the measurement of actual electrical charge delivered on contact. It factors in both the voltage and the duration of the pulse, giving you a real number that reflects real-world stopping power.
| Device | Voltage Claim | Microcoulombs (µC) | Reality |
|---|---|---|---|
| Cheap budget stun gun | 50,000,000+ volts 🙄 | 1.6 µC or less | Loud. Not much else. |
| TASER StrikeLight 2 | 20kV (honest spec) | 10 µC ✓ | 6x more charge than cheap stun guns |
| TASER Pulse 2 / Bolt 2 | Not advertised | NMI — full muscle lockup ✓ | Law enforcement grade |
While every other dealer is bickering about whose voltage number is bigger, TASER is quietly measuring real performance with real numbers. That’s what leaders do. They don’t play the game. They change the conversation.
👉 See the TASER StrikeLight 2 on our site — the flashlight stun gun built to law enforcement standards.
What Is the Difference Between a Stun Gun and a TASER?
Most people use these words interchangeably. They are not the same thing and the difference matters a lot.
A contact stun gun — the kind you see everywhere with the crazy voltage claims — requires you to physically press the device against the attacker and hold it there. It works through pain compliance. The probes are the two metal contact points on the end of the device. The closer together those probes are, the smaller and more pinch-like the arc. Loud buzzing sound, narrow arc, less effective coverage.
A TASER device like the Pulse 2 or Bolt 2 fires two barbed probes on wires that embed in the target and deliver electricity across a wide span of the body. This causes neuromuscular incapacitation (NMI) — full involuntary muscle lockup. The attacker does not choose to stop. Their muscles physically cannot function during the discharge. That is a completely different level of technology.
Law enforcement moved to TASER devices for a reason. Pain compliance has a ceiling. NMI does not.
Before you buy any stun device, check the laws in your state: Stun Gun Laws by State →
Does Probe Spacing Actually Matter on a Contact Stun Gun?
The wider the probe spacing on a contact stun gun, the wider the electrical arc, and the more surface area it covers on contact. A narrow probe gap gives you a fast buzzing sound that seems intense — but it’s closer to a pinch. A wide probe gap gives you a deep, loud crack. That means the electricity is jumping a longer distance and covering more of the attacker’s body. When you test fire a stun gun in the air, listen for a deep crack, not a rapid buzz. That sound tells you what the device actually delivers.
Are Electronic Devices Reliable Enough for Self Defense?
Here’s something most dealers will never tell you: electronics fail.
Even professional TASER devices used by law enforcement experience what officers call a “brownout” — the device loses enough charge that it won’t deploy properly. This is why police officers are required to test fire their TASER at the start of every shift. Every single shift. Because even the most sophisticated law enforcement grade conducted electrical weapon can brownout.
Now think about a $20 stun gun that’s been sitting in a purse for six months.
Electronics require maintenance, charging, and care. They can fail at the worst possible moment. A kubotan made from aircraft-grade aluminum does not brownout. A telescopic baton does not need charging. A can of pepper spray does not have a battery.
I’m not saying don’t buy a stun gun. I’m saying know what you’re buying and why.
My Honest Self Defense Hierarchy — From Someone in This Industry
I’ve been around this industry since the early 90s. A TASER rep told me back in 2008 that most of what the industry sells are “toys and zappers.” That stung. But he wasn’t wrong about the cheap stuff.
Here’s how I personally think about self defense, in order:
The Real Self Defense Ladder
A stun gun requires you to be close, precise, and trained. Most people who carry one are not trained. In a real fight-or-flight moment, your hands shake, your vision tunnels, and you are not targeting the neck or the side of the torso. You’re surviving. A kubotan in a swinging hand hits something every time. A stun gun needs contact and accuracy.
Thick winter coat? Hoodie? Multiple layers? A contact stun gun loses significant effectiveness. Those same layers do not stop pepper spray and they do not stop a kubotan.
I’m telling you all of this because I want you to be prepared. I’m not here to talk you out of buying a stun gun. There is a right tool for every situation. Inside a vehicle a stun gun makes a lot of sense — no chemical contamination risk, no room to swing a baton. The loud arc alone can deter a dog. The deterrent factor has real value and I’ve seen it work.
Think of it like a contractor. A good construction worker doesn’t use a hammer for every job. They carry a circular saw, measuring tape, levels, drills — different tools for different situations. Self defense works the same way. Look at a police officer’s utility belt — pepper spray, baton, TASER, sometimes a kubotan. They carry options because they know not every situation calls for the same tool.
I’ve been saying this for years — at trade show booths, in emails, in person. Dealers send me messages telling me to stop. Wholesalers get frustrated. But the customers? They thank me. Every time. Because they’d rather hear the truth upfront than find out the hard way that the tool they trusted didn’t perform when it actually mattered.
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Frequently Asked Questions About Stun Gun Voltage Claims
Do stun gun voltage claims actually mean anything?
No. Stun gun voltage numbers are largely unverifiable marketing claims. There is no government regulation or industry standard holding manufacturers accountable. A company can legally print any voltage number on the box without independent testing to back it up. The measurement that actually reflects real-world effectiveness is microcoulombs — the charge delivered on contact. Ignore the voltage number. Ask about microcoulombs.
What should I actually look for when buying a stun gun?
Look at microcoulombs (µC), probe spacing, build quality, and brand reputation. TASER — trusted by 18,000+ law enforcement agencies worldwide — rates the StrikeLight 2 at 10 microcoulombs. Most cheap stun guns deliver 1.6 µC or less regardless of their voltage claims. Wider probe spacing means a wider electrical arc covering more surface area. A deep crackling sound on test fire is a better indicator of real output than any number on a box.
Why doesn’t TASER advertise voltage on their products?
Because voltage is inconsistent and difficult to measure accurately. TASER International — the same company that makes devices used by law enforcement worldwide — does not put voltage claims on their products because the readings fluctuate and can’t be reliably verified. Instead they measure in microcoulombs, which reflects actual delivered charge. When the most trusted name in the industry refuses to play the voltage game, that tells you everything.
Is a stun gun effective for self defense?
It depends on the situation and the person. Contact stun guns require direct skin contact, work through pain compliance, and lose significant effectiveness through heavy clothing like hoodies or winter coats. In a real fight-or-flight situation, most untrained civilians cannot maintain the precision and contact required. For most people, pepper spray combined with a kubotan or baton provides more reliable protection without requiring precision targeting under extreme stress.
What is the difference between a stun gun and a TASER?
A stun gun requires direct contact with the attacker and works through pain compliance — the attacker feels pain and hopefully stops. A TASER fires two barbed probes on wires that embed in the target and deliver electricity across a wide area of the body, causing full neuromuscular incapacitation — involuntary muscle lockup the attacker cannot override. This is why law enforcement moved to TASER devices. Pain compliance has limits. Neuromuscular incapacitation does not.
Are many stun guns just the same product with different labels?
Yes, many budget stun guns share the same internal components manufactured overseas, sold under different brand names with different voltage numbers on the box. The color, label, and claimed voltage are often the only real differences. This is a major reason why voltage claims are meaningless — the same hardware can carry a label saying 1 million volts or 50 million volts depending on who’s selling it and what number they think will close the sale.
