Direct fit for 2011 2012 2013 2014 2015 2016 2017 BMW X3 Inner or Outer Tail LIghts. Catalog of lamps This Will fit 63217217314/63 21 7 217 314; 63217217313/63 21 7 217 313; 63217217312/63 21 7 217 312; 63217217311/63 21 7 217 31. Improved factory manufactured replacement for faulty stock VALEO b003809.2 LED driver. Easy to Install: Rear led lights chip board easy fix and Repair ,assembly easy,plug and play. After-sales service: 100% inspection before shipment to ensure product quality. If you have any questions about the product, you can contact us at any time. Description This Driver work Better Then the OEM Part. Stock LED current = stock brightness No errors, no interference Transient voltage protection Consumes 3 times less current 100% Plug-n-Play: our driver has stock socket One driver fits either inner or outer light Custom designed factory PCB and factory assembly.