Introduction: LEd Trousers

Picture of LEd Trousers
Made by Franzis Kaner

MAke a flash LED pants from an ordinary pair of trousers

the make class

inspired by :
fancy blue led

Step 1: List of Materials

Picture of List of Materials

Here's a list of things you need

  • 20 X 3 mm multiple color LED's, bought them for 0.44ct each
  • 3 X 9volt Batteries
  • 3 X 9volt batteryconnector
  • 20 X LED resistors
  • flexible wire 5m package
  • One pair of trousers
  • Sticky plastic tape
  • Scissor
  • Needle and Thread

Step 2: Measure Out the Electric Wire

Picture of Measure Out the Electric Wire

  • First thing to do is determine the length of the electric wires and where you want to place them
  • For each electronic circuit, you'll need two wires. One for the pluspole , one for the minuspole
  • Link the two wires but leave space between them

Step 3: Making a Parallel Electric Circuit

Picture of Making a Parallel Electric Circuit

  • Make small openings into the wire for the resistor and the LED
  • connect the resistor, just fold in over the opening in the wire
  • connect the LED, make sure all ledlights are attached the same, for the + and - poles
  • Connect the LED's to the other opening, again, just fold them over the wire-opening
  • last, isolate the circuit with plastic tape
  • make sure all the LED's point at the same direction and do not cover them with tape

Note : the metal from the LED's and the resistors are flexible, but don't bent the part close to the
beginning of the LED or resistor or it might break

Step 4: Sewing the Circuit and the Lights Onto the Trousers

Picture of Sewing the Circuit and the Lights Onto the Trousers

  • First, connect the 9 volt batteryadapter on the circuit
  • Make a small hole in the trouserspocket.
  • Sew the plastic isolationpart near the pocket hole
  • put the end with the batteryadapter through the hole into the pocket

Determine a spot were you want to add a LED light, cut out a small hole with the scissors.
Make sure that it isn't bigger than a 3 mm diameter.

  • Now sew all LedLights one by one, make the next hole after sewing a LED
  • Make sure to give the wire space between each LEd, you'll be able to move more freely if you do so
  • repeat this process on each powercircuit

Step 5: The Result

Picture of The Result

You have total freedom of movement. Because there is enough space between each light, it won't break that easely.
Have fun with your own ledpants


Cornerbacker (author)2011-08-24

what voltage should the leds be and how many oms are the resistors?

corey_caffeine (author)2008-09-28


illdoyourdrugs (author)2008-05-21

I dont understand why you just strung up random LEDs everywhere, wheres the style. I suggest having the same colors or lighting up the perimiter of a pattern or patch. Im just saying there not that nice looking and could of been done better. One more thing why would you of not soldered these pants?

sponges (author)illdoyourdrugs2008-06-23

"strung up random LEDs everywhere, wheres the style"
LOL. That's why I love them so much! well done, themakeclass!

Well, thats just a matter of opinion.'s a conceptual thing. If someone wants to make a LED pants for his own, that someone can make patterns how he or she want it. The reason i didn't choose soldering is that i thought taping it would have more durability than a fragile soldering connection. And taping is better for the environment and less damaging for your health.

sloppycursive (author)2008-06-04

You guys know that there is a fibreoptic fabric out on the market now.
check it:
Luminex Fiber Optic Fabric

There are also LED fabrics coming out.

havanacus (author)2008-05-19

I'm guessing these pants are not washer-safe... How long can you go without washing your pants, young hippy?...

jongscx (author)havanacus2008-05-19

Actually, I think if you tied the legs into loose knots, to keep the wires from pulling apart, they might actually go through the washer okay... Oh yeah, and used something better than cellophane tape for electrical insulation (maybe heat-shrink?) Since it's all very simple electronics and no current is running while they're in the washer, it might work. Better yet, instead of stitching the LEDs into the pants, use velcro, so that 1) you can take them off easily, and 2) switch it into different pants...

havanacus (author)jongscx2008-05-21

If we're going with Velcro then why not just make the pants 100% Velcro and roll up some LED Velcro-style throwies?...

jongscx (author)havanacus2008-05-21

you know... that's not a bad idea. Or find pants made of a fabric that can be Velcro-ed to AND is translucent enough... you can make ANY combination... get a bunch of friends together and you can share lights... Or right, strips of velcro on regular pants, so you can have a fairly reconfigurable design...

themakeclass (author)havanacus2008-05-21

dump it when it's smells bad.

PKM (author)2008-05-19

Chances are your pants are not as fancy as the pair
Of very fancy pants that Mr. FancyPants will wear
and these are some very fancy pants, Mr. FancyPants :)

These are pretty swish, a pair for night cycling would be great as you can never light yourself up enough to prevent the occasional "I didn't see you there mate".

Mr. Rig It (author)PKM2008-05-19

"These are pretty swish" is that UK lingo?

PKM (author)Mr. Rig It2008-05-19

Yep. If I wanted to be extra-UK I could have called them "strides" or "keks"- I notice you call them trousers, however. Are you "British Commonwealth"?

themakeclass (author)PKM2008-05-21

nope, dutch

kreeningsons (author)2008-05-19

Are you from the future???

jaysbob (author)2008-05-19

Wow these are awesome. imagine a whole lighted suit. Or find a way to hook up some small solar panels so you can charge the pants batteries during the day when your walking around and don't need the LED's on. the possibilities are endless! although seems like soldering would be preferable to just twisting tape around them. but if it holds it holds. I could see it getting tedious having to solder all those joints.

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