Review on 60PCS Heat Shrink Butt Wire Connector Kit - Insulated Waterproof Electrical Marine Automotive Crimp Terminals Splice by Mysocalled Gaultier

As described, I’m not usually a fan of butt splices, but when there’s no other alternative these seem good. Not sure how long they’ll hold up in hot or cold or exposure to chemicals like oil, gas or grease, but they seem like good quality.I needed to use these on the underside of my truck so my primary concerns were if the connection will pull apart and if they’re truly weather proof. I tested one out, pulled the wires on each end as hard as I could, it held. I then used my expensive Fluke insulation tester, submerged the connection fully under water and did an insulation test on the submerged connection, no current leaks so they do make an actual water proof connection.