I wanted to know if anybody can help me find a not very Bright LED on amazon?

I know I can Buy Fairy Lights but they are Bulbs not LEDs and they burn out fast.

I only need say 6. of them the kind with the 2. Legs on them for a project I am doing.

 

LED brightness is nearly proportional to the current driven through it, up to the maximum current the LED is rated for. You can dim an LED by placing a resistor in series or by pulse-width modulation PWM

 

One thing to look for:

Diffused LEDs provide diffused, wide area light. Looking at them directly you see more of a glow.

Non-diffused LEDs provide a narrow cone of light. Looking at them directly can be blinding. Typically, this type of LED will project a spot of maybe 4" on the wall from 4' away.

 

One thing to look for:

Diffused LEDs provide diffused, wide area light. Looking at them directly you see more of a glow.

Non-diffused LEDs provide a narrow cone of light. Looking at them directly can be blinding. Typically, this type of LED will project a spot of maybe 4" on the wall from 4' away.

That would be an extremely narrow angle, I calculate 5°.

 

That would be an extremely narrow angle, I calculate 5°.

I'm so happy you refreshed your trigonometry skills. It adds so much to the discussion.

 

I'm so happy you refreshed your trigonometry skills. It adds so much to the discussion.

Huh? It was you who brought up the dispersion angle of LEDs. All I dd was clarify what you were saying.

 

The point was that they are a tight beam that can be blinding. The poster asked for dim LEDs and non-diffused LEDs aren't going to provide that. It matters not if the angle is 5°, 15° or 27.3°. Non-diffused LEDs are not pleasant to look at directly.

 

I have a White 1,520 mcd LED.

It needs 20 mA at 3.2 V. to Run.

I have a 6. Volt Battery Pack and yes I know how to use Ohms Law to find the Resistor I need to run it/

So are you telling me if I use a High Resistor to limit more Current to my LED the LED will be Dimmer?

 

20mA is "typically" full current. Reducing current to the LEDs from 20mA will dim them. Then there are serial/parallel voltage drops across the LEDs to consider as well.

 

Some modern LEDs are still plenty bright at a milliamp or less.

 

So are you telling me if I use a High Resistor to limit more Current to my LED the LED will be Dimmer?

Yes exactly. Try resistors to give you 5mA and 1mA. You have to go as low as 0.1mA to get really dim.

 

First, as has already been mentioned, the brightness of an LED is controlled by the current, which is affected by the applied voltage. That relationship applies to ALL LEDs that do not contain additional electronic circuitry.
IN ADDITION, the bright and tightly focused beam LEDs can often be changed to provide a much wider beam by simply using fairly fine sandpaper to roughen the lens surface.
Finally, in most cases the 20 milliamp current mentioned IS THE MAXIMUM CURRENT FOR THE SPECIFIED LIFETIME of that device!!
It is not by any stretch the specified operating value!!
I have driven those 20mA LEDs to quite adequate brightness directly from 5 volt CMOS gates, which deliver a bit over 3 volts in that application.