I used this to replace a solar premier one energizer i was using. I bought it early on and of course the more chickens i bought, the more netting i needed. Once i added another 164ft section the zing was basically gone when touched. The premier one had also started malfunctioning (the power button stayed on at all times), and i got tired of manually charging the batteries if i didn’t have enough sun for a few days. I finally got around to buying a plug in one and took a chance on this one since i had bought other items from them with good success. I got 2 3ft grounding rods and this, wired it all up and wow!!! This thing hits. I have no fear this will do its job keeping dogs or anything similar out.