581 Stop & Flasher Bulb 12V 21W Silver BAU15S (Pack of 10)

The 581 is a 12V 21W bulb with a BAU15S offset pin bayonet base and silver-coated glass. The offset BAU15S base prevents incorrect fitting of standard BA15S bulbs. Used extensively in modern European vehicles — particularly Audi, BMW, Mercedes and Volkswagen — as a front or side indicator bulb producing an amber effect through a clear lens. Pack of 10.