Heavy-duty wiring harness and plug. The connection plug is made of hard insulated plastic and features 16 Gauge wiring. Used for headlight or  Fog light bulb-type specific harnesses. Designed to heat-proof temperatures more than 480 degrees Fahrenheit for added protection when used with high-wattage bulbs. Easy to replace original connected plugs. Available for H4, H7, H9, H11, H13, 881, 9006, 9012, 9007 & 9008 bulbs.  We also have >heavy duty wiring harnesses with relay.- These harnesses do not include any extra wiring for turn signals or parking lights.