How do you use a homemade fish shocker with 4 wires?

To use a homemade fish shocker with four wires, connect two wires to the positive terminal of the power source and the other two to the negative terminal. Submerge the electrodes in water, ensuring they are spaced apart to create an effective shock zone. When activated, the current will flow between the two sets of wires, temporarily stunning fish in the vicinity. Always prioritize safety, using appropriate precautions to avoid electric shock.