Not too many years ago a powerful stun device was considered to be something in the area of 1,000,000 volts, but with new technology 5 million or 6,000,000 volts is not unheard of. Flashlight stun guns are generally, not always, the most powerful of all stun devices. Why? The answer is relatively simple; they have a bigger area to store the power source-batteries! All stun devices use batteries as their power source. The only difference between yesteryear's power source and today's modern version is the newer ones use rechargeable batteries...
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