What is a light-emitting diode (LED)?
Q: What is a light-emitting diode (LED)?
A: A LED is a semiconductor device that produces light from electricity.
Q: How long do LEDs last?
A: LEDs last a long time and are more durable than incandescent lightbulbs.
Q: What colors can LEDs produce?
A: LEDs can produce many different colors, including near-ultraviolet, visible or infrared.
Q: How does the color of an LED affect its energy usage?
A: The color of the LED affects how much electricity it uses.
Q: How do white LEDs work?
A: White LEDs usually have two or three different colored LEDs inside them, or one single-color LED combined with a phosphor that converts it to white.
Q: Where are LEDs used?
A: LEDs are used in many places such as electronic devices, advertising signs, brake lights on cars, TVs and recently for home lighting.
Q: Are surface-mount devices (SMD) small enough to be used as an LED? A: Yes, some modern day SMDs are small enough to be used as an LED.
