Volframhalogen

Volframhalogen, also known as tungsten halogen, refers to a type of incandescent light bulb that utilizes a halogen gas within the bulb. This halogen gas, typically iodine or bromine, plays a crucial role in the longevity and efficiency of the bulb. As the tungsten filament heats up and evaporates, the halogen gas reacts with the tungsten particles. These tungsten halide particles then circulate back towards the hot filament. Upon reaching the filament, the high temperature causes the tungsten halide to decompose, redepositing the tungsten back onto the filament. This process, known as the "halogen cycle," significantly reduces filament thinning and blackening of the glass envelope, which are common issues in standard incandescent bulbs. Consequently, volframhalogen bulbs can operate at higher filament temperatures, producing a brighter, whiter light, and have a considerably longer lifespan compared to conventional incandescent lamps. They are often used in applications where high-quality illumination and durability are desired, such as in automotive headlights, stage lighting, and some household fixtures. Despite their advantages, volframhalogen bulbs still produce light through incandescence, meaning they are less energy-efficient than modern alternatives like LED or fluorescent lighting.