Tip - Battle of the Headlights: Halogen vs. Xenon vs. LED vs. Laser

What we regard now as common things were sometime major technological achievements. There were times when adding a simple bolt or altering the shape of a certain component led to significant innovations which, years later, served as basis for more advanced projects. Let's take headlamps for example.
Tags: halogen, Xenon, HID, LED, headlamps, headlight, auto guide