Review on High-Quality iJDMTOY 9006 HB4 Ceramic Wiring Harness Sockets for Headlights or Fog Lights - Robust and Reliable by Sonny Nevers

The most important thing in any connection is a good connection with maximum contact area and no corrosion. i recommend covering the contact surface with some nolox or eq and using silicone grease or sealing spray, this ensures a waterproof seal and good conductivity at the joint. Teflon wire brazed with silver solder is used at extremely high temperatures, but this is only used in a few true high temperature applications (nuclear weapons, furnaces, boilers, etc.).