LEDs Deliver More from Less article tells that LEDs continue to penetrate automotive lighting applications due to their long life and design flexibility.
LEDs continue to penetrate automotive lighting applications due to their long life and flexibility of use for body styling and interior design. LED lighting, used for the headlights, daytime running lights and turn signal indicators, allow for much greater design flexibility than that of either Xenon or incandescent light bulbs. This permits the body designers of an automobiles front end to do things that they could never do before.
The headlight itself has been the elusive goal of LED adoption in an automotive environment. The main reason for this has been the thermal design aspects of the LEDs and their associated driver circuits.
A high power, or high brightness LED’s light output has already exceeded the critical milestone of 100 lumens per Watt (lm/W) (15 lm/W for a typical 60W bulb).
LEDs Deliver More from Less article shows how a 25W white LED headlamp can be configured using an array of 18 LEDs in series with 350mA of current passing through them to produce the necessary light output. This kind of configuration can really live up to their promises and be effective headlamp.
Same can’t be said on the drop-on replacement products for normal light bulbs. My earlier LED car lights article shows how they do not live up to their promises and do not meet the regulations on car lights.
So if you want to have LED headlight on your car you need to have a new headlight design specifically designed for LEDs in mind.