Brett has posted this a while Back. Watch the video
Amazon has some good deals
https://sharperday.com/products/necs-waterproof-solder-wire-connectors?fbclid=IwAR0yyoip1pWxXyeJCvNu1QIgJo8ELy8yMiLFqC0PuA623imX6fP8bNPjha4
Suffolk County Long Island New York
Power Washing and Roof Cleaning Long Island
Clean Rite Blog