An MC4 connector is the common indicates of connecting solar panels. Male and female connectors have security locks so that they gained’t just appear apart. Also they are developed for outdoor use and well matched for rooftop solar panels and RVs. Yes, PV wire can generally be operate in conduit. https://6mmsolarcablepricesouthaf11100.wikilowdown.com/6339608/rumored_buzz_on_solar_cable_6mm