This year I will be running power via 4mm2 cable consisting of multiple lengths. My question relates to using the 2 core pigtails that are thinner gauge wire from the top of the pic you see and then attaching that to the 4mm2 cable back to a 2 core pigtail. Would a short length of smaller gauge wire affect the voltage loss or would I be better connecting the 4mm2 without the pigtail. I am looking at having something set up that would be similar to controller boxes with pigtails hanging out but don't want to lose power. Is there any other options other than standard Ray Wu style pigtails? Any other products people have used?