hõõglamp, mis genereerib valgust elektrivoolu toimel halogeeni (joodi või broomi) aurude atmosfääris asuvale volfram-hõõgniidile, incandescent lamp  that generates light by passing an electric current  through a thin filament wire (usually of wolfram) until it is extremely hot. The lamps are often filled by a halogen gas such as iodine and bromine that allow filaments to work at higher temperatures and higher efficiencies