Our 9004 ceramic male to female socket extensions are the perfect solution for those looking to extend or upgrade their existing OEM headlight sockets. They feature precision crafted male AND female socket ends giving you the option to extend your factory high or low beam socket to reach your ballasts, bixenon triggers, or relay inputs. Or you can cut the heavy-duty 12 guage wires to create your own custom pigtails for use in any special application. Both male and female ends far exceed OEM specifications and are crafted from super high temp ceramic to support up to 100 watt halogen bulbs for those wanting to upgrade their current bulbs. 24k plated contacts ensure maximal heat dissipation and power transfer for the best performance possible.