Firefly bulb watts

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Firefly bulb watts

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Firefly bulb watts

Electroluminescence is the phenomenon where light is emitted from a material in response to an electric current or field. This differs from incandescence, which is the emission of light due to heat; this is how conventional non-fluorescent light bulbs work. Light emitting diodes LED are actually a type of semiconductor that uses electroluminescence to generate light. First developed in by Oleg Losev, commercial LEDs have been available since the s and were commonly found as calculator displays for scientific calculators. Semiconductors are usually crystalline or amorphous solids that come in two versions: n-type and p-type. The n-type semiconductor is doped with excess electrons by adding impurities like phosphorus to a silicon matrix. The p-type conductor is also silicon, but without the phosphorous. Typical LEDs operate at low energies milliwatts ; Lumileds was able to arrange a collection of LEDs to produce a 5 watt bulb that generated lumens of light; compared to conventional incandescent bulbs using watts to emit 15 lumens of light. LEDs at high currents will also heat up and diminish their lifespan. Increasing the efficiency and brightness of an LED is a struggle for the industry.

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