894 HID Conversion Kits come with two bulbs and two ballasts and are plug and play. 894 bulbs are part of a broader series of bulbs known as 800 series. There are many bulbs that are interchangeable within this series. 894 hid kits are only found in fog lights. Changing your factory 894 bulb from halogen to HID will give you 3 times the amount of light as your factory halogen bulb.

894 HID Conversion Kit Installation Manuals:

880 HID Conversion Kit 

880 HID Conversion Kit (with Relay)

880 HID Conversion Kit (with Cancellers)

880 HID Conversion Kit (With Relay + Canceller Combo)