Connect 12V relay to LED

[asifpeechamgod]

How to connect 12V realy to a LED using resistor

 

[Harald Kapp]

https://www.electronicspoint.com/resources/got-a-question-about-driving-leds.5/

 

[Robert_fay]

Something Like This.

If you need to calculate the resistor here is a calculator I use.
https://www.digikey.com/en/resource...ors/conversion-calculator-led-series-resistor

 

[duke37]

If you have a mechanical switch, you do not need a relay.

 

[Robert_fay]

If you have a mechanical switch, you do not need a relay.

True, But you need something to run control your relay. This switch could be replaced with a microcontroller, The relay could be run off a different circuit etc.