LEDs for Beginners : 9 Steps (with Pictures) - Instructables
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How to Control LEDs on the Arduino - Circuit Basics
Kingbright L-7113EC 5mm 2V Red LED 80mcd | Rapid Online
LED Red Light Bulb 1.8mm 2V 20mA 20° Angle 10 25 50 Count Emitting Diode | eBay
W-1048-OAG | No Brand LED Indicator, Fixed, Green, 2V | Distrelec International
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L1: Turning on an LED - Physical Computing
1w Red 2v High Power LED Strip | Railwayscenics
What is the current consumed by an LED supply of 2 volts? - Quora