Adapter: H13 Male > 9006 Female Chevrolet and every other color in

and every other color in the spectrum for that matter

not in addition to one

here is the bulb cross reference guide for this product: 3057

the NHK ballasts have proven reliable for many

Adapter: H13 Male > 9006 Female Chevrolet and every other color inUseful: Sometimes "this" just doesn't plug into "that" When the industry standard for aftermarket lighting calls for mostly 9006 Female inputs, these adapters will come in handy. Go Direct: If your vehicle's stock headlight circuit is strong enough to power ballasts without a relay harness, these are the perfect solution for non 9006 headlight systems since almost all HID ballasts require a 9006 female input. Standard: These are standard equipment on