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Simple Led Driver/Constant-current Source 20 MA : 3 Steps - Instructables
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Unmounted LEDs
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5mm LED Technical Specifications and Power Characteristics
Choosing the Resistor to Use With LEDs : 3 Steps - Instructables
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How to Calculate the Value of Resistor for LED & LED's Circuits
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Pin by Francisco Javier Sanchez Muñoz on electrónica | Diy electronics, Electronics basics, Electronic schematics
Choosing the Resistor to Use With LEDs : 3 Steps - Instructables
How to Calculate the Value of Resistor for LED & LED's Circuits
Amazon.com: Diffused Blue 10mm LED (20 pack) : Industrial & Scientific
power supply - Add on/off indicator LED to circuit - Electrical Engineering Stack Exchange
RESISTOR VALUE TO LIGHT UP 3.5V LED USING 5V POWER SUPPLY (ENGLISH/TAGALOG) - YouTube
