This is for 1 pair of Green bulbs part number 194!!This is a direct replacement, no modifications are necessary!These bulbs will work in any 194 Applications like: Backup bulbs (1 pair, 2 bulbs are included)Turn Signal LightsParking LightsInterior LightsAnywhere you can put any 194 / 168 bulb!!These bulbs carry a full 1 year, no questions asked warranty