3mm LED with internal resistor - 5V - Solarbotics Ltd.
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50 x 12v 3mm LED Light Red Ultra Bright Internal Resistor 5v-15v 9v 6v 14v 7 no | eBay
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Devon P. Hubner
Stak - Resistors for use with LEDs - 3.3V, 5V, 6V, 9V, 12V - 100 pack
LED and resistor in series from +5V to digital in - General Electronics - Arduino Forum
Arduino: LEDs and resistors
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L1: Turning on an LED - Physical Computing
Resistors for LED Circuits | Resistor Applications | Resistor Guide
