Feature: 1. Fitment: HID ballast is replacement for A3 A4 A5 A6 Q5 Q7 RS5 S4 S5 S6 S7 S8 2008‑2017, replacement for Chrysler 300 / 300 C 2011‑2017. 2. Replace OE Part Number: The OE number is 8K0941597B, compatible OE number is 8K0941597E, 8K0941597C, W003T20171. 3. High Quality Material: Headlight ballast is made of high quality metal, rubber and ABS material, wear resistant, sturdy and durable. 4. Excellent Performance: Headlight control unit module can fast start up, strobe support, high brightness, stable and reliable. 5. Simple Installation: The installation is simple and convenient, just plug and play, no need complicated tools, save your time and energy. Specification: Item Type: HID Ballast Material: Metal+Rubber+ABSOE: 8K0941597BCompatible OE: 8K0941597E, 8K0941597C, W003T20171Voltage: 12V Operating Current: 4.3AOperating Temperature Range: 40°C-105℃ Off And On Time: 100000 (times)Starting Current: 5.3A Lifespan: 5000H Power: 35W Input Voltage Range: 9-16(V) Fitment: Replacement for A3 2009-2011 2015-2016 Replacement for A4 2009-2016 Replacement for A5 2010-2017 Replacement for A6 2009-2015 Replacement for allroad 2013-2016 Replacement for Q7 2010-2015 Replacement for Q5 2009-2017 Replacement for RS5 2013-2015 Replacement for S4 2009-2016 Replacement for S5 2008-2017 Replacement for S6 2013-2015 Replacement for S7 2013-2015 Replacement for S8 2013-2014 Replacement for Chrysler 300 / 300 C 2011- 2017 Replacement for Dodge Viper 2013- 2016 Replacement for Macan 2015-2017 Replacement for Eos 2012-2014 . Package List: 1 x HID Ballast Note: Please double check the part number of your item, matching information is for reference only. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!