Many of the advanced technologies and significant issues remain to be resolved before implementation. Inhibitors which could delay or preclude implementation might include unproven reliability, vehicle packaging issues and cost .vs. value as perceived by the customer.

High Intensity Discharge Headlamps

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What it is :

High Intensity Discharge (HID) headlamps provide a brighter, whiter light for increased forward visibility. They produce about 2 1/2 times as much light as conventional halogen bulbs and have a distinct appearance. Also, they are more durable than filament bulbs and require 37 percent less power to operate.

How it works :

HID headlamps use electrical energy to excite a metal halide. A quartz glass capsule, filled with xenon gas, receives a momentary high-voltage charge from an integral ignitor, causing an arc between the two electrodes to light. Once the arc is stabilized, it runs at 80 volts, supplied by a remote ballast. A reflector housing and lens direct the light at the roadway. Discharge lighting has been used in street lamps and stadium lighting for decades, but the technology is relatively new to automobiles.

Customer benefit:

Better night visibility, increased headlamp durability, increased safety and improved styling.

Ford status:

Available on select Lincoln products.

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