55W / AMP: GTR Ultra Slim Ballast Ford Meets the tough criteria for

Meets the tough criteria for IP67 and IP69K for the best protection from dust and water ingress

Because these headlights have a DRL feature

which offers many advantages

Every line of the 16 awg copper wiring is protected with black mesh insulation

55W / AMP: GTR Ultra Slim Ballast Ford Meets the tough criteria forThis is the 5th Generation HID ballast: designed specifically to integrate with the complex computer systems found in modern vehicles. PWM Integration: PWM stands for Pulse Width Modulation, it's when the vehicle flashes the input voltage to your bulbs so fast that you can't see the difference, but it modulates the activity of the halogen bulb. That's fine on an old style halogen incandescent, but on HID systems it might make a flashing or strobing