Description: Material: The H4 Female Socket Adapter is made of plastic, ensuring its longevity and reliability.Performance: This H4 Female Adapter Wiring Harness Sockets Wire Connector features high efficient copper wiring with a female connector included Nylon Female Plug that can withstand up to 1200 Fahrenheit. It's designed for heavy duty use, offering high efficiency and heat resistance.Easy Installation: The adapter is pre wired for direct plug and play, eliminating the need to modify the wire.Size: Female Adapter Sockets, size (4.72inchx0.79inchx0.79inch), makes it easy to fit in various vehicles.Versatile Use: Suitable for headlights or fog light repair, retrofit, extension use in any vehicle with the same lamp models that use halogen or aftermarket lamps. Specification: 12.0cmx2.0cmx2.0cm/4.72inchx0.79inchx0.79inch Size Chart: Working Voltage: DC 12V Package Includes: 2H4 Female Socket Adapters Note: Please allow slightly errors 1-2cm differences due to manual measurement.