Which term describes a semiconductor device that converts electricity into light?

The term that describes a semiconductor device that converts electricity into light is LED Light. LEDs, or Light Emitting Diodes, operate based on the principle of electroluminescence, where a material emits light as a result of an electric current passing through it. This technology has revolutionized lighting due to its efficiency and longevity compared to traditional light sources.

Fluorescent lights, halogen lights, and incandescent lights work on different principles. Fluorescent lights rely on gas excitation and phosphor coating to produce light; halogen lights utilize a tungsten filament contained in a halogen gas to create light through filament heating; and incandescent lights produce light by passing electricity through a thin filament, causing it to heat up and glow. Each of these alternatives does not employ the semiconductor technology that defines LEDs, making LEDs distinct in their operation and efficiency.