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

I've had them on my truck (2010 international, semi-automatic) for over half a year finally stopped changing bulbs. I have 9006 bulbs and original cartridges keep melting. I was skeptical at first because the problem is in the contact, bad contact = high heat, ceramic alone won't solve the contact problem, but they seem to have better contacts as I still don't see any discoloration on the metal. One downside I found is that the fit is very tight, it sits in the groove of the cartridge, it's flat, I scraped the comb in the bulb (plastic is easier to modify than ceramic) and they fit very good.