Seller notes

For use: with LED headlight bulbs, or 35w HID ballasts. Prevents bulb out warnings or flickering. Many newer vehicles: use a technology called PWM to operate the different lighting systems in a vehicle. PWM stands for Pulse Width Modulation and it allows for halogen bulb dimming, reducing alternator/battery electrical usage load, and is a very popular control method in modern vehicles. For example 2009 and newer Dodge Ram trucks all use PWM to control their headlights, and in some instances the ...

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