Ballast The low current starts quickly, surpassing the ballast.The cold start current is not excessive, and the lamp tube is not accelerated to a high power, extending the service life of the lamp tube.Using advanced electronic ignition technology, high-voltage output is stable, less interference, strobe up to 10 million times without damage.The ballast design is used, compatible with ultra-fast start ballast + frequency conversion decoder or X3 decoder, / D2 / D3 / D4 compatible installation, to meet the installation of different models.Name: Xenon headlight ballast The low current starts quickly, surpassing the ballast. The cold start current is not excessive, and the lamp tube is not accelerated to a high power, extending the service life of the lamp tube. Using advanced electronic ignition technology, high-voltage output is stable, less interference, strobe up to 10 million times without damage. The ballast design is used, compatible with ultra-fast start ballast + frequency conversion decoder or X3 decoder, / D2 / D3 / D4 compatible installation, to meet the installation of different models. Name: Xenon headlight ballast Specification: D1S Product Numbers: A1669002800, 130732931201 Weight: 210g Rated input voltage: 12 (V) Starting current: 6.5 (A) Working current: 3.2 (A) Lifespan: 3000 (hours) Input power: 35 (W) Input voltage: 9-16V Maximum input current: 6A ~ 8A Instant start voltage: or equal to 23KV Output voltage waveform: square wave Frequency: 250 +/- 10Hz Output open circuit protection: less than or equal to 1S Output short circuit protection: less than or equal to 1S Input voltage reverse connection protection: less than or equal to 1S Working temperature: -40 Celsius ~ 105 Celsius Service life: or equal to 30000HRS Applicable models: for A Class W176 for B Class W246 for C Class W204 for X166 for X204 for M Class W166 for SL R231 for R172 for 2009-2012 X1 Series for 2009-2012 Z4 Series for 2009-2012 3 Series Sedan and Wagons ONLY for 2009-2012 7 Series for K48 Motorcycle for 2009-2012 colour:Silver Material:Aluminum alloy Package Contents: 1*Ballast Only the above package content, other products are not included. Note: Light 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.