This Driver work Better Then the Part. No errors, no interference.Transient voltage protection. Consumes 3 times less current. One driver fits either inner or outer light Other Part Number: b003809.2 Fitment Type: Direct Replacement Placement on Vehicle: Rear, Left, Right, Inner, Outer Voltage: 12V Wattage: 3W These boards Will fix the Dead Led bulb issue on you for E83 X3 This is a 2 pcs set One for Each Body/Quarter Mounted Tail Light This Is a DIY Kit and you will need to Cut in to the back side of the Light to replace the Led Board. This Part Is Plug And Play (Does Not require any cutting and Soldering Like other Parts) This is an improved replacement Led Driver Board (LED Chip) For 2007 2008 2009 2010 BMW X3 Colour: as shown Material: LED+Metal plate Package Contents: 2 * Tail light replacement plate Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.