LED Basics

A tutorial on the basics of using LEDs (light emitting diodes). Polarity, forward voltage and current are discussed.
300 LEDs for $13: http://www.amazon.com/exec/obidos/ASIN/B00UWBJM0Q/afromods-20
500 resistors for $12: http://www.amazon.com/exec/obidos/ASIN/B008MH97I4/afromods-20
Adjustable power supply: https://www.amazon.com/exec/obidos/ASIN/B00LG1TGSE/afromods-20
Previous video on volts: http://www.youtube.com/watch?v=TBt-kxYfync
Next video on resistors: http://www.youtube.com/watch?v=NfcgA1axPLo
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Видео LED Basics канала Afrotechmods