What are Halogen Bulbs?
What are Halogen Bulbs?
Halogen headlight bulbs can be found on approximately 85% of the cars on the road today, they are the most popular type of headlight option on the market today mainly because they are cheap to manufacture and cheap to replace.
Typically, they emit a bright yellow /white light and can last up to one thousand hours but tend to last longer due to usage patterns.
How do halogen bulbs work?
Halogen bulbs are generally made up of four elements:
- A tungsten filament.
- Inert gas e.g. Argon or nitrogen to prevent oxidation of the tungsten filament.
- Halogen gas via Iodine or bromine which give the bulb a higher intensity / brightness.
- Glass capsule which envelopes the other components.
Electricity passes through the tungsten filament which is heated up to 2,500° Celsius which then starts to glow, the gas within in the bulb is resistant to extreme high temperatures.