Installing LEDs into Props and Costumes
Published on Jul 18, 2018

For years I was fascinated by the idea of adding lights to my costumes and props, but at the same time really scared of trying it myself. Having nearly failed all of my physics and math lessons in school, I immediately felt a cold shiver down my spine just thinking of all of these confusing formulas. Since you are reading this text, I bet you feel similar. Let me tell you the good news: It’s not as complicated as is looks. Just start simple! In fact, installing LEDs into costumes and props is not rocket science and super fun!

Let’s do a little experiment!

It glows! That was easy, wasn’t it? As you can see, all you need is a power source (battery) and a LED. I used a simple 2032 button cell battery, which provides exactly 3 volt. This is exactly how much this tiny light wants. You don’t need any calculations, any soldering and don’t have to think about which materials and tools you might have to get. If you want, you can just wrap some tape around, squish it into your costume and you are good to go!

Yes, this actually works with all colors, even if other LEDs require less power. I did this for years and it worked perfectly! Oh, and if you are wondering: This setup lasts for around 12 hours. Afterwards just get a new battery.

Curios? There is more! Here are a few examples to make you even more excited!

Here is built Symmetra’s Photon Projector from Overwatch.

And here my Druid Tier 8 armor from World of Warcraft.


All you need is a battery and and LED to light up your costumes. Wires, switches, battery holders and everything else is just optional. Don’t be scared of maths and just try things out!

The next step is to hold everything together properly with wires, add a switch to turn your lights on and off and add a battery holder to change your battery more easily. But all of this is optional. With a little bit of luck, someone in your family already has a soldering iron and after some research, you’ll find out that all the tools and materials are actually extremely cheap. A new soldering iron costs only only 20$ and wires, LEDs, switches and battery holders are available on ebay for only a few cents.

If you want a more visual example, here is a little video I did where I explain it all!



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Check out my Book of Cosplay Lights – Getting Started with LEDs. I wrote it for someone who has no idea about LEDs at all, just as I did a few years ago. It’s really easy to understand. And the best: No math is required!

And if you still haven’t had enough, there is also a way to animate your LEDs. I’ve used this technique for costumes like my Nova from Heroes of the Storm…

… or my Zinogre armor from Monster Hunter.




While these LEDs installations are a little bit more complicated, they are still totally doable even for beginners who’ve never soldered before. I personally really enjoy learning new things and really loved how helpful all the tutorials on were. So, if you’re curious, I did a video tutorial about this topic as well!

I also wrote a handy guide on this topic as well: Advanced Cosplay Lights – Animated LEDs. It’s called advanced, but it really isn’t. Even if you have no idea about programming you can still get amazing results with moving lights. You just need to know how. I kept this book very basic and easy to follow. You don’t need to be an engineer to look like a sparkling x-mas tree!

As you can see, LEDs don’t need to be scary! Yes, it took me a few years until I finally got out of my comfort zone and dared to buy a soldering iron, but I noticed very quickly that I didn’t had to worry at all.

Learning electronics is really easy with the right source and super fun! Plus you will be incredibly proud once you turn on your lights for the first time. I promise you!

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Written by Svetlana

| Writer, Full-Time Costume Maker

We are self-employed artists, writers and costume makers currently living in Germany. We love to help the crafting community by creating YouTube videos, writing books and by sharing the current progress of our projects on social media. In our shop you can also find crafting patterns to help you with your own projects!


  1. Hi! I am working on a new evening-gown/cosplay and I was hoping to incorporate some LED or light up elements! How would you go about making a larger surface area (more than just piping/lines light up while keeping it flexible enough to be comfortable to wear? I can’t use resin as it would be EXTREMELY uncomfortable as it is currently expected to be on the lower back/butt area. Any advice would be VERY welcome!

  2. Even if these LEDs installations are a bit more complicated than others, it is still entirely possible to complete them, especially for novices who have never worked with solder before.

  3. Oh, I forgot to mention…

    I ASSUME you are into Japanese Anime (ha!)… :)

    I am a voice-over actor who works under the name of David Harbold. I have voiced TONS of English dubs of Japanese anime cartoons.

    So… If you have seen, or know of the English version of “Made in Abyss” — I AM THE VOICE OF BONDREWD!

    Just FYI… :)

  4. You two are… AWESOME!

    I have been watching your videos for several months now — downloaded the foam Mandalorian pattern (nice!) — and I just got the OLD led code from Adafruit so I can start “messing” with my Arduino.

    When I grow up, I wanna be just like you! :)

    Actually, I started cosplaying in the late 1970s (yeah, I’m a geezer), but I am really getting into prop making now. I’m hoping to create some cool props with coordinated sounds and LEDs.

    Keep up the great work and videos — I learn something every time a watch them.




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