Assembled in USA by Diode Dynamics Manufacturing. No more errors or flickering!This module does it all! It's a redesigned, modern version of the old, generic "warning canceller." Designed to handle even the most troublesome CANBUS systems used in the newest vehicles, it features nonpolar function, full power smoothing, and resistive and capacitive feedback to cancel even the most tricky CANBUS systems. The module can be used with 35W HIDs or any LED bulb. It will prevent flickering or bulb out errors in low beams, high beams, fog lamps, or daytime running lights. It has been tested for compatibility in the newest of vehicles, including Ram, Dodge, Chrysler, Jeep, VW, BMW, Audi, and Mercedes. Please note: Although we have tested these modules on many vehicles, due to differences in the electrical system on each vehicle, we cannot guarantee that these will correct any and every problem that may exist on every specific vehicle of every make and model. We offer a 30-day return policy if they do not work on your vehicle for any reason. Price is for one pair (two) modules. Not recommended for use with 55W HID.