This is a lamp that produces light using one or more light-emitting diodes (LEDs). All diodes emit photons (particles of electromagnetic energy), but only certain types of diodes emit that electromagnetic energy as light instead of heat. A light emitting diode is a type of solid-state lighting (SSL) technology, meaning that it emits light from a piece of solid matter. In this case, that piece of solid matter is a two-lead semiconductor.

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