Just wondering if anyone knows what measures have been put in place for heat dissipation for the high power LED's in the headlamps? the LED's all seem to be soldered to the PCB but i cannot seem to see any kind of heatsink. After having my LED's on for only a few minutes, i touched the area of the PCB that is visible from underneath and it felt warm (not hot) but this was only after operating for a few minutes. Just wondering what measures Lexus have put in place to dissipate the heat?

 

Likely not much since LEDs do not get hot like HIDs or halogen. Its actually an issue in colder climates where a hot lends helps get rid of cold/snow on a headlight. Well with a LED light, it doesn't get hot enough.