PWM Modules: XTR (H4/9003) GMC Each Model 97 features a

Each Model 97 features a heavy-duty aluminum housing

The "Extended" version is 10mm taller in overall height and has the dimples arrayed around it's face in a full circle

A number of updates to the OEM lighting options along the way have helped in preventing the headlights from becoming too far outdated but the fact is that none of those options will come close to the modernization and performance that the new Morimoto XB LEDs deliver

utilizing factory connectors and including all necessary components for a hassle-free setup

PWM Modules: XTR (H4/9003) GMC Each Model 97 features aXenonDepot 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