KnowraLight-emitting diodeLinked fromLinked fromThe 45 pages that link to Light-emitting diode, each with the reason it gives.All 45Broader topic 14Related 20Narrower topic 6Compared with 5LaserCompared with: LEDs are efficient light sources but generally lack the narrow beam and coherence of lasers.Fluorescent lampCompared with: LEDs have largely replaced fluorescent lamps in many applications, without mercury discharge.Laser diodeCompared with: Unlike a laser diode, an ordinary LED does not rely on a resonant cavity for coherent emission.Neon lightingCompared with: LEDs can imitate neon's appearance while using a different light-producing mechanism.Gas-discharge lampCompared with: LEDs use solid-state electroluminescence instead of ionized gas.