why use resistors with leds sorted by
relevance

Admin21.08.2021

Resistors with LED strip

That's like putting 1x 3v LED in series on a 12v system vs 3x 3v LEDs in series.
1010
Admin09.07.2021

Basics: Picking Resistors for LEDs

So want to learn yet so frustrated already.
9209
Admin14.06.2021

Why do I need a resistor when using LEDs on an Uno?

You might note that 12 V is overkill for a single LED, as we talked about above.
7003
Admin27.06.2021

Basics: Picking Resistors for LEDs

That looks reasonable when you take a look at other datasheets.
6607
Admin14.06.2021

Why do we use resistors? [The real quick reasons]

So can we use multiple LEDs strung together? If your batteries are in series, the voltage will be too high.
8601
Admin03.09.2021

Basics: Picking Resistors for LEDs

2V fully charged and down to about 2.
9707
Admin25.06.2021

Why is it necessary to use a resistor in series with an LED?

If the resistor was sized to the max current of the LED for the mid-range of batt voltages, it may be in danger of degrading due to high currents when the batt voltage is at its highest.
Admin06.07.2021

Driving an LED with or without a resistor

You may have heard of Opamps.
6701
Admin23.07.2021

Why is it necessary to use a resistor in series with an LED?

5 V Red, Yellow, or Yellow-Green 1.
Admin27.06.2021

Why is it necessary to use a resistor in series with an LED?

2v then it's gonna be a lot dimmer with the engine off and really dim if we wanna use up all the batt's capacity.
2804
Admin05.08.2021

Basics: Picking Resistors for LEDs

If it ends up with a lower value, then you could end up with too much current, which can damage your LED.
19010
Admin04.08.2021

Basics: Picking Resistors for LEDs

Ok, so far the typical use of an LED with an current limitting resistor.
6409