... MC4 solar connnector 4.Simple,quick installation MC4 solar connector (female and male) for PV junction box, solar module, solar power system ... platedFlame ClassUL94-V0 or UL94-5VA Advantages of Solar Connector:•Simple,quick,safe and effective filed assembly ... for long-time outdoor application•Approved by TUV MC4 solar connector (female and male) for PV junction box, solar module, solar power system ...