$1500 to replace headlight?

[petteyg359]

Although this sort of thing is often cited, the LED's themselves are just one element. For instance, in a household light bulb, there are quite a number of other components including rectifiers, a DC-DC converter, capacitors, not to mention the circuit board, soldering, etc. It is these other things that fail most often (exacerbated by heat) rather than the LED's themselves. I don't know exactly what is in the complicated Clarity headlamp assembly, perhaps less than what is in a residential bulb, but maybe not...

At least one component not needed in the car headlight. A household bulb has to convert AC to DC. The car systems are DC all the way.

 

[MrFixit]

The car systems are DC all the way

Not necessarily !!
There could be a DC/DC converter in order to increase and/or better regulate the voltage.
This would have AC as an intermediate 'feature'.