LEDs

Question 1

RBG LED

Answer 1

LED having red, green, and blue emitters. Using additive mixing, a wide array of colors are possible.

Question 2

LED

Answer 2

light emitting diode. A solid-state illumination engine

Question 3

Positives of LEDs

Answer 3

• small, flat, lightweight, and require very little voltage, and so can easily be powered by battery.
• usually be handled with bare hands
• The emitter is a solid chunk of semiconductor; there’s no lamp to break, no delicate filament.
• very tolerant of vibration, is durable, and has a very long useful life (50,000 hours as compared to 2000 hours, at best, for a tungsten lamp). - Most employ a dimmer built into the power supply, controlled with onboard controls or via a digital control signal such as DMX512.
• formulated in several different colors including seven or eight narrow-spectrum single colors, and wider spectrum phosphor-based white LEDs. White LEDs range from bluer cool white emitters (daylight color balance), to warm white emitters (with a correlated color temperature closer to that of a tungsten lamp).