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Components & Parts > LEDs

5mm LEDs 100pcs Pack 20x Red Green Blue Yellow White

SKU: CE05103

$6.95 AUD, inc GST
$6.32 AUD, exc GST
5mm LEDs 100pcs Pack 20x Red Green Blue Yellow White
6.95 AUD

SKU: CE05103

$6.95 AUD, inc GST
$6.32 AUD, exc GST
14 reviews 0 5 4.7
Shipping Offer


  • $6.95 Standard (2-4 days, tracked)
  • $9.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

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*Conditions apply, see shipping tab below.

The LED is arguably one of the most essential components in any maker project, from the Blink sketch and beyond. This pack will equip your workspace with plenty of the most common LEDs you'll ever need. You'll have 20 LEDs in the following colors to mix into your projects; Red, Green, Yellow, Blue and White (That's 100 total).

Ideal for Makers - 5mm through-hole LEDs are simply put, the most common LED you'll see in most projects. You can insert them straight into your breadboard, solder into veroboard, connect out to GPIO pins, or even mount them into a project panel as indicator lights.

Assorted Colors - With 5 colors to choose from, you'll have options for different uses.

Connection and compatibility - We find that these LEDs work well with between 2.5 - 3V at around 20mA current.

How to use these LEDs in your project

When using LEDs the first thing you need to be aware of is that they are polarised components. Identify the Anode and Cathode legs of your LED. The quick and easy way is that the short leg is the Cathode (connected to GND/Negative). Next, you'll typically need a resistor in series to protect the LED from burning itself out. There are many creative ways to use LEDs in your projects, but this should let you hit the ground running.

We're wizards with LEDs (if we do say so), incorporating them into projects left-right and center. We wrote one of the most comprehensive guides on LEDs that goes in-depth on all aspects of LEDs. If you need any help with LEDs in your projects, we're here to help!

Technical Specifications

  • Voltage:1.8-2.2V (Red, Green, Yellow)
  • Voltage:2.4-2.7V(White, Blue)
  • Max current: 20mA
  • Recommended current: 16-18mA
  • Size: 36x5x5mm

This product is listed in:

Documentation and Resources:
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  • What Are NeoPixel LEDs?
  • So in case you haven’t heard yet, digital LEDs are the go-to solution for any project that uses RGB LEDs and you want to avoid the rat's nest that ensures when using multiple RGB LEDs, each colour requiring its own connection. Digital...
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  • So in case you haven’t heard yet, digital LEDs are the go-to solution for any project that uses RGB LEDs and you want to avoid the rat's nest that ensures when using multiple RGB LEDs, each colour requiring its own connection. Digitally address...
  • All About LEDs
  • Hello and welcome to our tutorial where we a look at all things LED. Now first of all, what is an LED? LED stands for Light Emitting Diode and is an electronic component used to convert electrical energy to light energy. This process is called electr...
  • Time lapsing in OctoPrint (Properly!)
  • Now that we have decked out our Lulzbot Taz 6 3D Printer with a really nice looking acrylic enclosure, I'm just about ready to turn on some serious 3D printing work. But before I dive into that endless pool of fun, it's a good time to take 5 minutes and set up our Taz 6 and it's OctoPrint Server with a bed-mounted camera and light system. That way I can monitor my prints from the other side of the warehouse using OctoPrint, and m...

Product Comments

Customer Reviews

  1. Review by Vincent verified purchaser

    Was troubled to find that 16 of the LEDs in this pack were faulty! All of them being yellow!
    Very disappointed.
    (Posted on 18/01/2019)

  2. Review by Sean verified purchaser

    All good so far! (Posted on 6/05/2018)

  3. Review by Goldman verified purchaser

    Useful for any projects that have low voltage. (Posted on 28/03/2018)

  4. Review by Pete verified purchaser

    very handy (Posted on 27/02/2018)

  5. Review by Ryan verified purchaser

    Cheap and excellent quality (Posted on 10/01/2018)

  6. Review by Peter verified purchaser

    Like the switches I bought, these LEDs are going to be hugely useful to my projects. Great delivery, packaging & service from Core once again. (Posted on 17/11/2017)

  7. Review by Kevin verified purchaser

    Good product, works as advertised. (Posted on 26/10/2017)

  8. Review by Dion verified purchaser

    great pack of LED's (Posted on 13/07/2017)

  9. Review by Frankeex - Exactly As Expected

    Title says it all :) (Posted on 23/05/2014)

  10. Review by Harry - Great value verified purchaser

    Heaps of lights for such a low cost! Excellent postage and great customer service (Posted on 29/11/2013)

  11. Review by Harry - Excellent verified purchaser

    Great quality and very very useful. My Uni project supervisor even loves them (Posted on 29/11/2013)

  12. Review by Darren - Good Value verified purchaser

    Product axactly as described, good price and fast delivery. Will buy again. (Posted on 24/08/2013)

  13. Review by filby - Quality product, fast shipping

    Nice product, great value and delivered quickly.
    Will certainly be using again. (Posted on 1/06/2013)

  14. Review by bigals - Great product and quick delivery

    Product description and picture exactly as delivered. Quick delivery within 5 days (Posted on 2/05/2013)

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $9.95 for Express Post (Overnight for most of Australia, 2+ days for rural, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!