If you’re installing an LED kit in a vehicle equipped with PWM (pulse-width-modulation) headlight technology. The Anti-Flicker Harness is required to eliminate the flicker of the headlights.
Newer vehicles use PWM technology to increase bulb-life and reduce fuel consumption by sending a pulse of alternating voltages to the headlight bulb, as opposed to a stable 12V. Factory installed incandescent or halogen bulbs can handle this pulse system, as they won’t dim before the next pulse of power is received. However, an LED kit or HID kit requires constant power and will flicker if installed in a vehicle with a PWM headlight system. The Anti-Flicker Harness is designed to ensure that your headlights don’t flicker, and eliminate “lamp-out” error codes.
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