auto halogen lamp bulbs/H3

Linear halogen bulbs (English: halogen lamp), referred to as halogen bubbles or halogen lamps, also known as tungsten halogen bulbs and quartz bulbs, are a variety of incandescent lamps.
The principle is to inject iodide or bromine halogen gas into the bulb. At high temperature, the sublimated tungsten wire is chemically acted with halogen. The tungsten after cooling will be re solidified on the tungsten wire, forming a balanced cycle to avoid premature rupture of tungsten wire. So halogen bulbs live longer than incandescent lamps.

The power supply voltage of halogen lamp is usually divided into two types: AC 220V and DC 12V and 24V.

Advantages and disadvantages
The halogen lamp is an improvement in the incandescent lamp, which maintains the advantages of the incandescent lamp: simple, low cost, easy to adjust and control brightness, and good color display (Ra=100). At the same time, the halogen lamp overcomes many shortcomings of the incandescent lamp, such as short service life and low luminous efficiency (usually only 6% to 10% can be converted to light energy, and the rest are lost in the form of heat energy).
Halogen lamp: the rain and snow weather is strong and the light is uniform. In the low visibility weather, such as rain, snow and haze, the penetration of halogen light source is much better than the xenon light source with high color temperature.