Higher the K (Kelvin temperature) the brighter it gets- Not True, the Kelvin Scale measures color not brightness. The brightness is actually inversely proportional to the light output. 4500K HID is technically the brightest and the further you increase or decrease from 4500K the lumens (visible light) will slightly decrease. 

HIDs are so bright they will melt your headlights!- Not True, Xenon runs cooler and than your traditional halogen, therefore it will not melt your housing. HID is a much more efficient type of lighting therefore only needs 35w to run, opposed to 55w for halogen. Lower draw means lower temperatures and no melted housings

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