Input VIN and GND to T1 and T2 (GND) (12-V input) – The recommended wire size is AWG #12, with the total length of wire less than 2 feet (1 foot input, 1 foot return).
Output T3 and GND T5 (0.8-V output) – The minimum recommended wire size is AWG #10, with the total length of wire less than 2 feet (1 foot output, 1 foot return). A thicker wire gauge may be required to minimize the voltage drop the wires.