PWM Modules: XTR (H7) Quantity:Pair & 2721 This package: has

& 2721 This package: has 2 LED bulbs and they each feature 1 LED

and direct replacement for your factory 9006XS halogen bulbs

These tail lights come with powerful LED reverse lights and an option to add the LED Backup Boost Bar

Designed with rugged aluminum housing and universal mounting bracket

which is an animated running light when you unlock your Ford Super Duty

PWM Modules: XTR (H7) Quantity:Pair & 2721 This package: hasXenonDepot PWM HID Fix: The magic little box that you've been looking for if you're installing an HID kit or LED kit in a vehicle equipped with PWM (pulse width modulation) headlight technology. What is PWM? 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