LED Current Limiting Resistor Values
Using a current-limiting resistor is important when using LEDs. If the resistance of a circuit is too low the high current can limit the life of the LED or burn it out almost immediately. The goal of an LED is not always the maximum amount of light and a properly sized resistor can help achieve the proper brightness.
0:00 Intro
0:24 Voltage drop of diode vs LED
1:15 Voltage drop of different color LEDs
1:56 Proper resistor placement
2:38 3mm vs 5mm LEDs
2:56 LED brightness with different resistors
3:51 Resistor current equation
4:27 Minimum resistor table
6:05 Resistor power rating