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- LED - Assorted (20 pack)
We all know that you can never get too many LEDs. Don't worry, we've got you covered. This is a pack of basic red, yellow, blue and green 5mm LEDs (5 of each) all conveniently packaged in a nice reusable ESD safe bag.
- 5x - Basic Red
- 5x - Basic Yellow
- 5x - Basic Blue
- 5x - Basic Green
LED - Assorted (20 pack) Product Help and Resources
SparkFun Paper Circuit Kits
July 5, 2018
Learn how to build a simple paper circuit using copper tape, a 5mm LED, and a 3V coin cell battery.
Experiment Guide for the Johnny-Five Inventor's Kit
June 28, 2016
Use the Tessel 2 and the Johnny Five Inventors kit to explore the world of JavaScript enabled hardware through 14 awesome experiments!
Basic LED Animations for Beginners (Arduino)
December 3, 2019
Let's have some fun with LEDs! We'll explore LEDs once again with the SparkFun RedBoard Qwiic, making cool effects, and putting those effects to work using a sensor.
SparkFun Inventor's Kit Experiment Guide - v4.0
November 15, 2017
The SparkFun Inventor's Kit (SIK) Experiment Guide contains all of the information needed to build all five projects, encompassing 16 circuits, in the latest version of the kit, v4.0a.
SparkFun Inventor's Kit Experiment Guide - v4.1
August 8, 2019
The SparkFun Inventor's Kit (SIK) Experiment Guide contains all of the information needed to build all five projects, encompassing 16 circuits, in the latest version of the kit, v4.1.2 and v4.1.
Core Skill: Electrical Prototyping
If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
See all skill levels
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Customer Reviews
4.4 out of 5
Based on 8 ratings:
1 of 1 found this helpful:
No problems!
I bought some blue ones from Amazon for my brother's birthday and they didn't come in time. One month later I got a refund because they still hadn't come. Then I thought I should have bought some from Sparkfun all along. I did, there was no problems dealing with them. They actually shipped for one thing. They came in a red box and came with static resistant bags. They worked as intended. Will definitely buy from Sparkfun again if I need anything.
0 of 1 found this helpful:
LEDs
Nice product. Bright. Good for projects, etc.
LEDs of wonder
We tend to rely on Sparkfun for solid collections of awesome stuff. Especially as we are prototyping new ideas. The LED assortment we bought was just another rock star collection of pieces that work great, with solid explanations and support along for the ride.
They aren't going to blow your mind or save your marriage, but they sure do make electronics projects light up real good.
They Work.
All the LEDs work. I guess that's a 4 or 5.
leds
They where leds and they came in a 20 pack. So I gues that works.
Work great, no issues
Running on 3.3v with 330 ohm resistors. The blue and red LEDs are slightly brighter than the green and yellows, but they all work well.
Great fun, and they work , handle with care
These are fun, but they need a current limiting resistor in front of them. I used a Li battery, but needed a 5 to 10k ohm resistor to prevent burning out the red, yellow, and green. The blues would go with a 1k ohm and was the brightest by far.
great fun and a nice selection of parts.
Is what it says it is
Mix of colors, 5 each of four colors as described. Comes with small paper describing orientation of leads. No mention of max power they can handle before burnout (so far, tried them down to 1Kohm on 5v without issue).
I was hoping to find the device IV curves in order to help me calculate the appropriate resistor value for my planned circuit, I do not see them on the datasheets for the red, green or yellow LEDs and do not see a datasheet for the blue LED. Though given that PointyOintment provided useful experiment data it's at least a good place to start
How much current should I give these LEDs? The info sheet (both the one here and the one that comes in the antistatic bag with these LEDs) only gives the forward voltage drop.
I tested them using progressively larger resistors from my Resistor Kit (starting with one calculated to give ~10 mA) and my multimeter measuring the voltage dropped by the resistor, with 5 V supplied by my RedBoard.
Red
Very bright at 9 mA (3.05 V over 330 Ω resistor).
Pretty bright at 3 mA (3.19 V over 1 kΩ resistor).
Bright enough for a dim indicator at 71 μA (3.36 V over 47 kΩ resistor).
Very dim at 10 μA (3.43 V over 330 kΩ resistor). Somehow the first LED I used burned out after this one, and would not light even when I went back to smaller resistors. (Maybe my alligator clips touched accidentally.)
I replaced it with a new one and found that I could just see the light if I looked closely at the side at 3.5 μA (3.48 V over 1 MΩ resistor). This last result was verified with a third LED.
Yellow
Very bright at 9 mA (3.04 V over 330 Ω resistor).
Very bright at 5 mA (3.10 V over 680 Ω resistor).
Pretty bright at 1 mA (3.15 V over 2.2 kΩ resistor).
Bright enough for an indicator at 680 μA (3.19 V over 4.7 kΩ resistor).
Bright enough for a dim indicator at 150 μA (3.25 V over 22 kΩ resistor).
Very dim at 320 μA (3.32 V over 100 kΩ resistor).
Just visible, looking through the side, at 10 μA (3.37 V over 330 kΩ resistor). This was confirmed with a second LED.
Blue
Lit up dimly as I was plugging it in. Only the anode was connected at this point. (I was using clips to connect the cathode.) My body must have provided a path to ground, even though no other part of my body was touching anything metallic, and I was standing on a non-conductive floor.
Very bright at 9 mA (2.00 V over 220 Ω resistor).
Very bright at 6 mA (2.10 V over 330 Ω resistor).
Pretty bright at 1 mA (2.38 V over 2.2 kΩ resistor).
Bright enough for an indicator at 120 μA (2.53 V over 22 kΩ resistor).
Bright enough for a dim indicator at 26 μA (2.60 V over 100 kΩ resistor).
Very dim at 8 μA (2.64 V over 330 kΩ resistor).
Just visible, looking through the side, at 3 μA (2.69 V over 1 MΩ resistor).
I tried a second LED with the 1 MΩ resistor, and it was very dim, but still visible through the top.
Green
Very bright at 29 mA (2.90 V over 100 Ω resistor). This was tested after the 330 Ω resistor.
Pretty bright at 9 mA (3.01 V over 330 Ω resistor).
Pretty bright at 6 mA (3.04 V over 470 Ω resistor).
Bright enough for an indicator at 1 mA (3.13 V over 2.2 kΩ resistor).
Bright enough for a dim indicator at 320 μA (3.20 V over 10 kΩ resistor).
Very dim at 70 μA (3.28 V over 47 kΩ resistor).
Just visible, looking through the side, at 33 μA (3.32 V over 100 kΩ resistor). This was confirmed with a second LED.
These numbers probably will not be accurate for all of these LEDs (and the brightnesses are subjective), but they should be a good starting point.
Hi, sorry to randomly reply to a comment you made last year.
Why are the green LED's so much dimmer than the rest at the same voltage?
Size of LEDs?? T1 or T1-3/4 ?? Should also state in mm (metric) for those that do not understand older industry T sizing terms.
Sorry about that, they are 5mm LEDs (or T1-3/4). The description has been updated to reflect that, thanks for the heads up!
You can never have enough LEDs, and... wait, that's in the description. Oh well, not a bad price for an assortment.