What are the differences between incandescent and halogen lighting technologies?

The main differences between incandescent and halogen lighting technologies are the gases used inside the bulb and the filament material. Incandescent bulbs use inert gases like argon or nitrogen, while halogen bulbs use a small amount of halogen gas. Halogen bulbs also have a tungsten filament surrounded by a small amount of halogen gas, which allows the filament to last longer and operate at higher temperatures.