9011 application HID Conversion Kits fit high beam applications. Usually combined with 9012 as their low beams, 9011 bulbs are a single beam application. HIDNation's 9011 HID Kit comes with two bulbs and two HID Ballasts. You can choose to add a relay harness and cancellers if your high beams also work as your daytime running lights. Other upgrades such as 55w ballasts are also available for you to choose from. Visit our website to shop now!