I wanted to know if anybody can help me find Low Voltage LEDs?

I Buy LEDs with the 2. legs but they are always around 3.2 Voltage or somethig like this.

I wanted to know if Amazon has LEDs that use Less Voltage?

 

The LED voltage is determined by the solid-state physics of the device and varies with the LED color.
That can't be significantly changed.
Since shorter wavelength light has higher energy, the voltage increases as you go from red to blue

Below are some typical voltages vs. color:
The lowest voltage visible color is red.
Invisible IR LEDs are about 1.5V.

 

From Google:
LED color is directly related to forward voltage, with shorter, higher-energy wavelengths like blue and white requiring more voltage (around 3.0−4.0V) than longer, lower-energy wavelengths like red and infrared (around 1.7−2.2V). The specific forward voltage required depends on the semiconductor materials used to create the different colors.



Infrared LEDs as you might guess, have lower voltages.
A transformer (or a ferrite bead) can be used to boost voltage:

http://cappels.org/dproj/ledpage/leddrv.htm

 

I was looking at this.
https://www.amazon.com/gp/product/B0FCSHW2Q1/ref=ox_sc_act_image_2?smid=A24P5MMVJ8UES1&th=1

I can not find where it tells you the Voltage each LED needs?

 

I was looking at this.
https://www.amazon.com/gp/product/B0FCSHW2Q1/ref=ox_sc_act_image_2?smid=A24P5MMVJ8UES1&th=1

I can not find where it tells you the Voltage each LED needs?

See post #2.

 

Your link is 5 colors of LEDs. The forward voltage will be what has already been posted. See post #2. Those are your forward working voltages. I see where Mr. Chips has it covered.



Ron

 

I see thanks for the help.

I have a Dabble A Battery Pack that hold 4. Dabble A Batteries.

This will give me 6. Volts.

I wanted to make a string of LEDs but I will need more Voltage.

Do they Sell very little LEDs that use Low Voltage or even if they are very small the color White will still take 3. Voltes?

 

If the two charts above aren't enough info, here is the information shown in the Amazon link.

Note that a range of forward voltage is shown for each LED color. YOU don't get to decide what voltage it may be in that range – it depends on variations in the manufacturing process. So base everything on the highest voltage to be sure the LEDs will illuminate on the voltage you have available.

 

The voltage you will need is also dependent on the brightness you want.

Many LEDs produce usable light even below their heated forward voltage. That voltage, and the LED brightness is generally rated for 20mA of current through the device. With much lower current LEDs produce light—but your application will determine if that light will satisfy your requirement.

The red LEDs will operate at the lowest voltage*, but the green LEDs will have the highest perceptual brightness vs. current.
*The yellow LEDs have similar forward voltage requirements but with far less light output for the same current.

 

I wanted to make a string of LEDs but I will need more Voltage.

If you put several short strings in parallel, you don't need more voltage.