Diode: a semiconductor that emits a narrow-spectrum light. This effect is a form of electroluminescence. The colour of the light depends on the composition and condition of the semiconducting material used.
Advantages of LEDs;
- Unlike bulbs, LEDs are unlikely to fail suddenly. Instead you will experience a gradual lowering of light output and efficiency.
- LEDs are built inside solid cases which protect them and make them extremely durable.
- Most LEDs are designed to operate on very small amounts of electrical power, giving them a long lifespan and making them ideal for equipment such as torches or electrical equipment.
- LEDs give off much less heat than light bulbs and will light up faster.