Adapter: H4 Male > H13 Female GMC Upgrade your lighting game with

Upgrade your lighting game with the advanced third-gen MotoControl 8-Pin Relay

The resistors get so hot they can melt some light plastic and short wires

Designed to conquer compatibility concerns

Replace all together to save time and hassle

Legalize It: If you like green

Adapter: H4 Male > H13 Female GMC Upgrade your lighting game withUseful: 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