How to select resistor value for LED with simple calculation (Ohm's Law) - YouTube
How to Test LED Lights: 10 Steps (with Pictures) - wikiHow
LEDs for Beginners : 9 Steps (with Pictures) - Instructables
LEDs for Beginners : 9 Steps (with Pictures) - Instructables
How Does a 5mm LED Work? - LEDSupply Blog
Can I reduce voltage of an led? - Electrical Engineering Stack Exchange
Basics: Picking Resistors for LEDs | Evil Mad Scientist Laboratories
How Does a 5mm LED Work? - LEDSupply Blog
LED circuit - Wikipedia
When and Why do LEDs Need Current Limiting Resistors? | Waveform Lighting
Basic Light Emitting Diode guide - DP
Green led is very dim - General Electronics - Arduino Forum
Light-Emitting Diodes (LEDs) - learn.sparkfun.com
When and Why do LEDs Need Current Limiting Resistors? | Waveform Lighting
How Many Volts are Needed to Power an LED? - KitHub
Light Emitting Diode or the LED Tutorial
Light-Emitting Diodes (LEDs) - learn.sparkfun.com
LED Volt and Amp , How to Check Current (I) and Voltage (V) of Unknown LED Light with MultiMeter - YouTube
How much voltage is required to glow an LED? - Quora
Which Resistor Should I Use with my LED? – Kitronik Ltd
Light-Emitting Diodes (LEDs) - learn.sparkfun.com
LED Strip Light Internal Schematic and Voltage Information | Waveform Lighting
Forward Voltage and KVL | All About LEDs | Adafruit Learning System
