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Description: Light pipe is very cool stuff. It transmits light along its length, like fiber optic cable, but it also "leaks" light along the way, causing the entire length of tubing to light up when a bright light is shined into one end. It can be easily cut to length with a pair of scissors or a knife and by using a piece of shrink-tube to attach a super bright LED to one end, you can produce an EL-like effect.

Light pipe is great for decorative applications, you could even sew it into an e-textile project. It's also a good way to 're-route' an indicator light that's buried inside an enclosure, so that it's visible on the surface. Putting different colored LEDs at either end produces some very cool effects as well!

This is a 5 foot length of 3.5mm diameter light pipe. This light pipe has a white core that reflects light out and makes it visible in slightly brighter conditions. It can be easily connected to a basic 3mm LED with a length of shrink tubing or some tape.

Comments 6 comments

  • So why is the lightpipe material more costly than EL Wire, when it seems like it’d cost more to produce? At any rate, I’d like even-numbered lengths, or longer lengths of lightpipe if it’s possible, something like 10'?

  • What is the Numerical Aperature (NA) rating of these light pipes?

    How flexible are they?

  • It’s not too soon to think about halloween 2012!

    I’m definitely getting like 2 of these 5ft rolls and the 25 pack of RGB leds… No idea what I’ll do with them, but it’s gonna be awesome!

  • I’d like to see a comparison with EL-wire.

    • it would depend on what LED was used, how long the pipe was, etc. there are a LOT of variables.

      • Could you show a demo? The reason is that while EL wire is neat, it consumes a lot of power at 1.5W/meter (high brightness). It also has a relatively short lifetime.

        Even if there is light fall-off it may be worth using these light pipes at a higher price, but longer lifetime with 1W LEDs or other bright light sources. I’m just not sure how well these things illuminate


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