Incandescent lamps and neon lamps are types of lighting devices that produce light through different mechanisms. Incandescent lamps generate light by heating a filament to high temperatures until it emits visible light, while neon lamps use ionized neon gas to produce illumination through gas discharge. Incandescent lamps were widely used for general lighting before the advent of more energy-efficient lighting technologies, while neon lamps are often used for decorative and signage purposes due to their vibrant colors and distinctive glow.