What are LEDs?

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LED is an abbreviation for Light Emitting Diodes. LED lights have been in common use for over half a century, mainly in electronic equipment, where they’re used as signals and indicators (standby lights, for example). It is only in recent years that LED light bulbs have become widely available. LED lights are an energy-efficient, longer-lasting replacement for incandescent light bulbs. They emit the same brightness as traditional bulbs, using only a fraction of the power.