[Fast startup & safe stability]built-in high pressure bag can current conduction speed & save power consumption for fast startup,also can protect high pressure bag from any dust & rain in the engine environment to enhance security [Premium quality ]made of premium aluminum for better heat dissipation and vibration resistance performance,also with 6 protections against overpressure,low pressure,overheating,no-load,short circuit,reverse connection for more and durability [Waterproof & shockproof performance ]the internal waterproof circuit board is treated with adhesive glue irrigation ,which will protect internal electronic components from oxidation &aging and reduce vibration caused by loose and poor contact Item Type:Ballast Condition:100% New. Manufacturer Part Number: 5DF 010 114-62 AC - 5DF010114-62 AC 7PP941329M - 7PP 941 329 M - 7PP941329 M 7PP.941.329 M - 7PP.941.329M Fitment: For 2014-2018 For A3 2014-2016 For Q3 2014-2016 Colour:Black Material:metal+plastic Package Contents: 1 * Headlight Ballast Control Unit 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.