#Halogen vs led vs hid headlights series

However many people are more appreciative of the safety, reliability, and performance of newer projector style headlamps with higher-output bulbs.

Low cost and a lifespan of between 100 and 500 hours makes the halogen headlamp the most common type in use today.

#Halogen vs led vs hid headlights series

Inside the polycarbonate headlamp casings you will generally find a series of complex computer-designed reflective cut-outs (generally pretty poorly compared to projectors) which attempt to focus light forward in a more uniform pattern. Since about the mid 1990’s sealed beam halogen headlamps have been replaced with exterior casings made from polycarbonate instead of glass, which is both stronger and lighter than the previous sealed beam units are. This is your standard sealed beam.įor the majority of their life, halogen lamps focused light down the road ahead via a lens that actually doubled as the headlight’s protective housing now the two jobs are completely separate. From around the 1950’s up until now these filaments have been encased in a glass bubble of halogen gas, in an attempt to improve performance and longevity. Tungsten filaments like the ones commonly found in household incandescent light bulbs, were found to be the solution at the time. Halogen: Being able to reliably generate light with limited resources at a car’s disposal was a big problem for automotive engineers.