gas discharge lamp

A gas discharge lamp is a type of lighting that produces light by passing an electric current through gases inside a sealed tube or globe. When electricity flows, it excites the gas atoms, causing them to emit light. Different gases produce different colors; for example, neon glows red, while mercury vapor emits blue-green light. These lamps are efficient and long-lasting, commonly used in street lighting, signs, and stadiums. They operate at high voltages and require special fixtures, but provide bright, vibrant illumination with various color options depending on the gases used.