1、Vehicle Fitment: Headlight ballast is fit for C‑Class C300 W205 2015‑2017, which is made according to the prototype of the car. 2、Part Number: LED headlight module replace part number are A2059005110, A 205 90 05 110, 2059005110, A2059006905, A 205 90 06 905, 2059006905, A2059005716, A 205 90 05 716, etc for reference. 3、Stable Output: The controller module adopts advanced electronic ignition technology, stable high voltage output and less interference. 4、Function: Intelligent chip integrated with all the protection functions, power constant, high and low voltage automatic constant brightness adjustment, and to ensure the safety of use and constant brightness of the lights. 5、Performance: Controller can start quickly, instantly light up, and support fast strobe. Intelligent chip and the original equipment is highly compatible, which can better inhibit interference with the original car computer.