3mm LED with internal resistor - 5V - Solarbotics Ltd.
Choosing the Resistor to Use With LEDs : 3 Steps - Instructables
50 x LED Resistor for 5v, 6v, 9v or 12v Supply (LEDS) - 1st CLASS POST | eBay
Arduino: LEDs and resistors
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LED Series Resistor Calculator | DigiKey Electronics
LED Resistor Calculator
How to select resistor value for LED with simple calculation (Ohm's Law) - YouTube
LED's How to
How To Calculate LED's Resistor and Watt of it of12v & 5v Or any other volts | Electronics Teaching - YouTube
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LED Resistor Calculator
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voltage - What resistor to use with this RGB LED? - Electrical Engineering Stack Exchange
Basics: Picking Resistors for LEDs | Evil Mad Scientist Laboratories
led - Resistor requirement for 3.3 V supply - Electrical Engineering Stack Exchange
L1: Turning on an LED - Physical Computing
How to select Resistor Value for LED with simple calculation|5v,12v,220v, Glow LED|Electronics pro| - YouTube | Led, Computer diy, Resistor
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Series LED Resistor Calculator - Engineering Calculators & Tools
Resistors for LED Circuits | Resistor Applications | Resistor Guide
