Halogen headlights are named after a group of gas elements (the halogens ... That said, non-directional household halogen light bulbs are now banned in the EU due to their poor energy efficiency ...

The element had a high thermal inertia, and was designed for use in water, so didn’t last in the reflow application. Learning from the experience of others, [Sergi] switched to using halogen ...

LED lights last five times longer than traditional halogen bulbs and produce the same amount of light, but use up to 80% less power. To help people to choose the most efficient lightbulbs ...