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Light-Emitting Diodes (LEDs) - SparkFun Learn
LED Diode 5 mm - Diffused Green
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uxcell 5mm LED Diode Lights - 100pcs Red Lights Diodes DC1.8-2V Bulb Lamps Light Emitting Diode: Amazon.com: Industrial & Scientific
A Light Emitting Diode (LED) Is A Two Lead Semiconductor Light Source. Electrons Are Able To Recombine With Electron Holes Within The Device, Releasing Energy In The Form Of Photons. Royalty Free
Light Emitting Diodes
LED - Light Emitting Diode: Construction, Types & Applications
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Light Emitting Diode Basics | LED Types, Colors and Applications
Sources of Visible Light - Introduction to Light Emitting Diodes | Olympus LS
Light Emitting Diode (LED) - Last Minute Engineers