Features: 1.Applicable Model: The xenon headlight ballast is for A3 A4 A5 A6 A7 A8 Allroad Q7 Q5 RS5 S4 S5 S6 S7 S8, for 300 2011 to 2017, for Macan 2015 to 2017, for CC Eos. 2.OE Number: The part numbers for reference are 8K0941597B, 8K0941597E, 8K0941597C, W003T20171, BAM92143700, BAM92?143700, W003T21971, 8K0941597B, 8K0.941.597.B, 8KO941597B, 8K0941597C, 8K0.941.597.C, 8KO941597C, W003T18471, 8K0941597E, 8K0.941.597.E, 8KO941597E. 3.Main Function: The xenon HID headlamp ballast stabilizes the current flow, protects the xenon bulb and igniter, and provides a stable lighting effect. 4.Durable Material: The HID xenon headlight ballast control module is made of durable and reliable material, high strength and wear resistant, having long service time. 5.Easy to Install: The xenon ballast HID control unit module has a simple installation, convenient and time saving, don't need too much tools or complicated steps. Specification: Item Type: Xenon Headlight Ballast_x000D_ OEM: 8K0941597B, 8K0941597E, 8K0941597C, W003T20171, BAM92143700, BAM92-143700, W003T21971, 8K0941597B, 8K0.941.597.B, 8KO941597B, 8K0941597C, 8K0.941.597.C, 8KO941597C, W003T18471, 8K0941597E, 8K0.941.597.E, 8KO941597E_x000D_ HID Bulb Type: D3S, D3R, D4S, D4R_x000D_ Output Or Sortie Voltage:42V AC_x000D_ Open Circuit Voltage: 1300V DC_x000D_ Power: 35W_x000D_ Applicable Position: Around Headlights_x000D_ Installation Mode: Direct Replacement Installation_x000D_ Fitment: For A3 2009-2011 2015-2016_x000D_ For A4 2009-2016_x000D_ For A5 2010-2017_x000D_ For A6 2009-2015_x000D_ For A7 2012-2015_x000D_ For A8 2011-2014_x000D_ For Allroad 2013-2016_x000D_ For Q7 2010-2015_x000D_ For Q5 2009-2017_x000D_ For RS5 2013-2015_x000D_ For S4 2009-2016_x000D_ For S5 2008-2017_x000D_ For S6 2013-2015_x000D_ For S7 2013-2015_x000D_ For S8 2013-2014_x000D_ For 300 2011- 2017_x000D_ For Macan 2015-2017_x000D_ For CC 2013-2014_x000D_ For Eos 2012-2014 PackageList: 1 x_x000D_ _x000D_ Xenon Headlight Ballast Note: Please double check the part number of your item, matching information is for reference only.