I never tried higher amperage but I must admit I have considered it several times.

I heard a report about a farmer that had a heart arrhythmia problem and didn't want to have a pacemaker put in until all the crops were in would go to his electric fence with gloves and touch his chest with it. Seems really risky to me.

There are much higher voltage zappers out there but they are cost prohibitive for me.

You can't kill parasites with just electricity.

The zapper is designed to create a square wave resonant frequency that matches the parasite and therefore kills the parasite.

In simpler terms all things exist as a frequency wave. If an outside source matches the frequency wave the object will self destruct.

Engineers are very careful about determining the frequency wave of what they design. There are lots of stories about bridges falling because the troops marching across created a vibration that matched the bridge and it collapsed. A bridge in MI fell when the wind caused it to vibrate at its resonant frequency.

So, if the device cannot be set to the critters frequncy all you will do is tickle them. There are many lists of frequencies for parasites but there are over 5,000 parasites. No list covers them all.

It is a lot more complicated than this but don't go sticking you finger in the wall socket. Unless the critter happens to be 6o HZ you'll have to deal with other things and take the parasites with you.

I love the zapper but it is not a cure all. It helps. The problem is that zappers can't get to the interior and some parasites have 6 or 7 stages of growth.

You could keep trying different frequencies if you have a Rife machine. I can tell immediately when I have a frequency that is killing them. It takes patience and persistence.