Please see all COVID-19 updates here as some shipments may be delayed due to CDC safety and staffing guidelines. If you have an order or shipping question please refer to our Customer Support page. For technical questions please check out our Forums. Thank you for your continued support.

LED - Assorted 10 Red / 10 Yellow (20 pack)

$ 2.35 $ 0.75

Added to your shopping cart

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 and yellow LEDs (10 of each) all conveniently packaged in a nice reusable ESD safe bag.

  • 10x - Basic Yellow
  • 10x - Basic Red

LED - Assorted 10 Red / 10 Yellow (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.

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.

2 Electrical Prototyping

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


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Is this info sheet correct? I am typically accustomed to seeing LEDs with luminous Intensity circa 100 mcd or less. What is this business of brightness in the info sheet i.e. 10,000 mcd? The total luminous Intensity of 10 LEDs or something? Then the white LED is speced with Kelvin which is color temperature in the wavelength column?

    • I can't really comment on the veracity of the cd rating of these LEDs as most of the name brand LEDs with a colored lens tend to top out below 3,000mcd. I'm sure they're plenty bright either which way and you're more likely to want them to be less bright than that you'd want them to be brighter (in case you do: look at power LEDs, or multi-chip LEDs in 7mm to 10mm packages).

      The color temperature is about right though. It's basically a blue-ish emitter with a yellow-ish phosphor coating that makes it into 'white' light. It will have two strong peaks, in the blue and yellow regions of the spectrum, rather than a single quotable wavelength. Instead, white LEDs tend to be noted by their apparent color temperature to be more in line with traditional 'white' lighting solutions.

      • I was not expecting a wavelength for white light :) I just thought the temperature was deserving of its own column rather than being listed under the wavelength column. I cannot imagine these LEDS come anywhere near 3000mcd which is why I was "questioning" the info sheet. Thank you Kamiquasi I was starting to question myself!

  • They come in an ESD package. Are they ESD sensitive??? Or can I just take them out and drop them into a regular plastic container?

    • You should be fine doing that. These are pretty sturdy little LEDs (unless you really attempt to rip the legs off...)

  • what size are these LEDs? the info sheet doesn't have the sizes...are they 5mm?

    • ok j/k they are 5mm, it was listed on the side. it wasn't entirely obvious to me, might want to add 5mm to the product description for clarity

  • Any Chance to get this kit for 3mm LEDs ?

  • When will this be back in stock?

  • Pardon my ignorance but on the little mini data sheet that came with these in the mail today it says the VDROP is 20-24V. Is the period missing and it is supposed to be 2.0-2.4V?

  • When will it be back in stock?

  • TECHNICALLY the pricing is not right on this..... SFE is selling 25 for $2.95 but here you get 20 for $2.95

    • but then again, they do drop the price down from... 0.35 a led x 20 = $7.00
      savings of $7.00 - $2.95 = $4.15

Customer Reviews

No reviews yet.