I have a 2002 Mercury Cougar, I have stock headlights and bulbs. I want to put HID lights in the interior and exterior of the car. Can I just switch out the light bulbs or do I have to install a conversion kit?
You will need the conversion kit.
What is HID?
HID, or High-Intensity Discharge, is a technology that utilizes xenon gas with an electrical arc to produce brighter, more efficient headlight bulbs. HID lights are significantly brighter than halogen. Depending on the temperature (color), brightness can increased by as much as 3x the lumen output of a halogen headlight bulb. Converting to HID is as simple as purchasing a complete HID kit for your vehicle or if you already know your vehicles bulb size you can purchase a kit for that size.