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

Although Revain says it doesn't fit my car I knew it would and ordered it anyway. I was right, they fit perfectly. High quality ceramic plugs help manage the heat caused by faulty GM headlight switches in Trailblazers and Envoys melting the plugs. Be sure to use dielectric grease on the connectors. They fit perfectly in the headlight socket. Dielectric grease protects against moisture, prevents corrosion and ensures a good connection. This is a patch, not a repair, keeping you from replacing burned connectors every few months. You may also want to buy a new switch so you don't have to worry about it again. I also install LED bulbs so I figured out the price. Why not add them too? They work great. Problem solved, I'm glad the headache is finally over!