90 Headlights are the most important safety tool when driving at night. High quality 90 Headlights can improve the drivers distance of view when driving in low light conditions thereby preventing the driver from hitting any animals that may be crossing the road or even seeing the road ahead. HID 90 Headlights use a high intensity discharge system to create a dramatically better brightness factor. Halogen lights are the traditional lights installed on older or lower end vehicles. These lights are generally cheap to replace and do not require a special wiring system.