I have a 1900k voltage stun gun?

Question

What does the k stand for, and if I ever need to use the stun gun how powerful is it, like can it take down a 6 foot 200 lb guy, how effective is it?

Answer 1

k = kilo or 1,000

for voltage it's usually expressed as kv or kilo-volts.

1,900kv would equal 1 million, 900 thousand volts.

If used properly it will stop anyone in their tracks instantaneously.