Review on Waterproof Electrical Wire Connector - JRready ST6248 DT 4 Pin, Set of 10, Gray, Solid Contacts, 14-20AWG by Vishal Geske

, Deutsch makes one of the BEST quick connectors I've come across. These connectors are used on multi-million dollar cranes that operate 24/7 and rarely break down. Very good, weatherproof connection with minimal resistance through the connector. Deutsch offers different types of pins (types of metal used) as well as different numbers of pins per connector (2-wire/3-wire/4-wire/etc up to I believe 12-pin) Manufacturer specs show 25 amps continuous Current up to 150 volts. You'll need a special crimping tool to assemble them properly - tool prices range from $30 to $300. Each does its job - it all depends on how often you want to use it. My tool cost me about $230 but I use it weekly and with different size wires (the tool has an adjustable wire crimp) - - I've had the tool for over 4 years and expect it to last 20+ years.