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A comment on BMW's Laser Headlights. Parent comment

Re:BMW's Laser Headlights by MBCook on Friday January 10, 2014 @10:51PM (#7041483)
Well, let's assume these lasers are 10x as efficient as LEDs used in headlights. Even if you lost 70% of the light in the process of exciting phosphorus, you'd still have a net gain.

My question would be: are modern headlights really that much of a drain?

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Re:BMW's Laser Headlights by Cairn on Saturday January 11, 2014 @02:09AM (#7041902)
Decent LEDs are, currently, about 6x less efficacious than the theoretical maximum of any light emitter, as measured by the human eye. Incandescents are much poorer performers, of course.
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