Basics: Picking Resistors for LEDs
5 Ways to Calculate Total Resistance in Circuits - wikiHow
Practical Ways to Avoid Voltage Drop Across LED Strip - Myledy
Could someone help me understand why (in the circuit pictured) it doesn't matter if the resistor is positioned after the LED? : r/AskElectronics
How to Install Load Resistors for LED Turn Signal Lights:
resistors - calculating resistance for LED strips to use as parking lamps and turn signals - Electrical Engineering Stack Exchange
How to Calculate the Value of Resistor for LEDs Circuits?
What is LED strip voltage drop?
3.3v &3.3v LED how to connect 12V series circuit, how to calculate led series resistor, watts