How long LED filaments are made

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A look at the internal construction of a common type of low voltage LED filament that is often used to give the effect of a long coiled filament in decorative lamps.
The 300mm (12") filaments have an illuminated section of about 285mm (11") with 200 LEDs in parallel along the length, running at around 3V. This makes them very easy to power with batteries or a USB power supply, using a couple of 10 ohm resistors in series.
In a dim room they can be run at extremely low current to get a strong visible line of colour. Literally just a few milliamps.
Here's a link to the Aliexpress page I bought these from:-
www.aliexpress.com/item/1005002433050598.html
The 300mm versions should cost about £7-£10 for five including shipping. If they hike the price, consider other suppliers.
There are other sellers with more expensive listings. I'm not sure if the filaments they are selling are a higher spec or if it's the same ones.
If using these in a way that will allow lots of flexing, then I'd recommend reinforcing the ends with a short piece of 2.5mm heatshrink for strain relief. If using in a costume then make sure they can be removed and replaced easily.
A link to the video that inspired me to try some of the filaments out:-
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zhe8d9NgcsI.html
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
www.bigclive.com/coffee.htm
This also keeps the channel independent of RU-vid's advertising algorithms allowing it to be a bit more dangerous and naughty.
#ElectronicsCreators

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13 янв 2022

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Комментарии : 442

@BRUXXUS 2 года назад

This is what I dreamed EL Wire could be. If they could make these as long and durable as EL Wire while keeping the benefit of LEDs, it'd be amazing!

@Scrogan 2 года назад

Yeah, I’d like to see them being more non-directional too. That said, I’ve been having some luck driving those tiny flash globe transformers with a push-pull driver resonantly with the EL wire on the other end. Still needs a boost converter, and don’t forget the inductor. You can’t treat the primary of a transformer like an inductor if you’re doing a resonant converter, it needs a series inductor at the least. Also getting it resonant with the secondary side isn’t trivial.

@ICountFrom0 2 года назад

What if we braid it, so that the bright parts and the dim parts average out, the multiple strands adding stability and a bit more durability, and then run it down the inside of some flexable tube? A faberic tube maybe? So it can stitched into costumes? An occasional loop of thread through the braid to secure it into the tube made around it?

@serpentine1983 2 года назад

Laser Wire. But are expensive, very expensive.

@DUKE_of_RAMBLE 2 года назад

I love EL Wire. I've never gotten any of the EL "Strips" (non-omni directional like the wire), or the EL "Panels" though, but those also are equally alluring as the Wire variant. I always like EL much more than the CCL that everyone used in early computer modding, or car modding for that matter. I had bought some red EL Wire for a computer once, and some years later ended up owning a 1991 Red Firebird... That EL wire fit PERFECTLY when pressed into the seams in the dash/center console, around the radio and shifter. Which, with the 12V Booster box for PC use, worked just as happily while being fed with the "12V" (14.4V) automotive electrical. Unfortunately, my 1993 Firebird's dash is a bit different, and I'm not able to do the same trick :( Further shame, that the Red LED here is basically useless in terms of illumination... but the other colors are vibrant enough that I want to buy some......... I just don't know what I"d use it for! Although if I were a smart enough person (like Clive) I would probably make some a phone case with a device like those Cell Stickers, but have this work off some sort of IC with its own small LiPo, that something-somehow-detects-calls and then gives a cool neon-glow with those LEDs inlaid into the case.

@MrMegaPussyPlayer 2 года назад

@@DUKE_of_RAMBLE EL wire sucks for one reason. The very limited lifetime. Great at beginning, but reducing in brightness very fast. I integrated one in a computer case ... once ... back when cases just getting illuminated with cold cathode tubes. By the time I was satisfied where and how the EL was going (with occasional light tests) and had the right method to attach it (hint: tiny dabs of hot glue are NOT the way to go) it was so dim even in a complete dark room it was barely visible. You basically have to throw them out every other week.

@foxfoxfoxfoxfoxfoxfoxfoxfoxfox 2 года назад

Silicone based "personal lubricants" will soften and act like a solvent to silicone. Coating the wires in it would probably have been enough to turn the coating to jelly and allow you to easily strip it off.

@fat_pigeon 2 года назад

Possibly also dichloromethane would work.

@JimService 2 года назад

There are bottles of silicone stripper sold for removing silicone caulking around bathtubs.

@anzetal9586 2 года назад

@@JimService but the lubricant can be used for fun later 😉

@ralphshoop8822 2 года назад

@@anzetal9586 Just not the same lubricant used for dissolving the coating :D

@BearFulmer Год назад

Just be sure to take the nookie pills first

@williamgreen5575 2 года назад

SMD parts flipping up during reflow is called 'tombstoning' and it happens to small resistors or caps sometimes too.

@jaro6985 2 года назад

Tombstoning is when one side lifts up and disconnects, apparently in this case it would be called "billboarding" which is more rare.

@williamgreen5575 2 года назад

@@jaro6985 spot on. I'd never heard of that. I've experienced tombstoning before though. Turns out 'billboarding' is down to faulty placement or oversize pads. You learn something new every day!

@shiftyjesusfish 2 года назад

Every time I want reliable information on something in a project, you somehow have a recent video on either the exact topics, or one similar enough you manage to answer my questions or teach me something I didnt know that lets me explore what i didnt understand in a new way. One of the best people out there in my opinion Clive, thanks for all your hard work, and your constant mentoring of the community

@sulpheralchemist 2 года назад

I've been playing with these for a while after seeing the tested video too. I've found that a pair of them in series run really well from a usb without need to current limit (as they are under volted). Makes them really easy and good for simple costume work.

@dcentral 2 года назад

How to wire 4 of these to be in series: + - + - + -+ - ?

@johndoe528 2 года назад

@@dcentral yes

@GadgetBoy 2 года назад

The pick and place machines use tiny little tubes that pull a vacuum and the part sticks to it. Then it goes to a certain X/Y coordinate, pushes it into the paste, then releases the vacuum. On occasion, the vacuum might not release fast enough, or the part might stick to the tube, or whatever, and the part won't stick flush. We called it tombstoning when they'd successfully solder flipped up. It was then that I learned that high frequency RF circuits are sensitive to their inductors flipping up - they'll "work" but at a slightly different frequency.

@ths800 2 года назад

SMT machine

@MetalheadAndNerd 2 года назад

Coffee machine

@phonotical 2 года назад

Tea Machine

@jayherde0 2 года назад

Milk machine ... wait - that's a cow :-/

@phonotical 2 года назад

@@jayherde0 or my mother

@brainfarth 2 года назад

Aliexpress knows when I've been watching your show.

@PedroDaGr8 2 года назад

I just found what project I'm going to use toteach my godson and his sister how to solder. Who knows what we will end up making but these flexible LED strips are what we will use to do so. They both are hardcore about learning how to solder so it should go well. I might propose some ideas but I want them to help design their own creation. The learning how to plan to achieve their goal is the important part. Thank you Clive from the bottom of my heart for posting these.

@ExtremeMetal 2 года назад

The best thing that taught me to solder half decently was quite ironic really. Desoldering ICs and caps from old boards. Every single component I removed I was better at it, and the skills translated quite well to soldering.

@darkracer1252 2 года назад

i made some neon sign for some people before with the neon led strips. and my main issue back then was that i couldnt get it any smaller. this however is CONCIDERABLY smaller. so i might revisit that project

@richards7909 2 года назад

If this had been available in the 80s, every kid with a BMX would have hoped someone sold a kit to put this around their spokes! More fun than a lollipop stick jammed onto the brake caliper to make a noise :D

@LakeNipissing 2 года назад

Wow!! It looks like colored wires that light up! These look like they would be a lot of fun to experiment with!

@zh84 2 года назад

Like electroluminescent wire, but much easier to work with as it is low voltage and more flexible.

@Texas1FlyBoy 2 года назад

@@zh84 And as long as you don't over-drive them, they'll probably last longer than EL wire.

@GadgetBoy 2 года назад

Those filaments would make incredible light saber effects on miniatures.

@_waymin 2 года назад

EL wire is a more afforable and durable ( more importantly, stiffer- not as soft as these so it's more lightsaber-y) than these, i would imagine if you had larger models these would be preferable.

@GadgetBoy 2 года назад

@@_waymin yeah, but you can't just cut el wire.

@_waymin 2 года назад

@@GadgetBoy yeah you can, that's the whole point

@_waymin 2 года назад

@@GadgetBoy there are actually sheets of it designed to be cut into shapes

@licensetodrive9930 2 года назад

@@_waymin I think EL wire is great, I've played with some years ago and I have a USB cable with 3 strands embedded in the center of the wire wrapped into a spiral, so when it's being used it lights up the 3 strands in sequence to make it look like energy flowing into the device, the speed of how quick the light 'moves' along the cable depends on the current draw of the USB device. Unfortunately EL paper/wire can wear out over time, that USB cable is very dim now, and EL can't compete with LEDs for brightness & life longevity, so it's really good to see these LED strings.

@dwaynewladyka577 2 года назад

Those are the coolest looking LED lights I've ever seen. I can imagine artists using those. The uses could vary. Things like a for a progressive rock album cover, making illuminated noodles in a bowl, or even spinning strands of those and photographing it. Even a miniature Christmas tree would look cool with that. Cheers!

@darkracer1252 2 года назад

when you look them up on the internet and example is using them as shoe laces

@Qwarzz 2 года назад

I bought these to have laser beams between model spacecraft :)

@roberthindle5146 2 года назад

I didn't know these existed. They are coolest thing I've seen in ages!

@pyromaniac303 2 года назад

Bought some of these now, great find! I was looking for something like this for a while now for my water fountain illumination project - ruled EL wire out due to the high voltage.

@markusallport1276 2 года назад

that looks really cool! I've never seen these before, and now I shall buy some for some fun creative experimenting! Thanks Clive~!

@KLondike5 2 года назад

I like to burn off the remaining capacity of weak batteries on decorative LEDs. They last a surprisingly long time. These look like a fun way of doing the same with my growing pile of weak alkaline batteries.

@treborrrrr 2 года назад

Why not replace the batteries with rechargeable ones instead? Much cheaper in the long run.

@KLondike5 2 года назад

@treborrrrr I still have things that don't work nice with 1.2 volts & just think the batteries are dead.

@darkracer1252 2 года назад

@@KLondike5 ever concidered the fact that it's trying to protect itself? battery's don't like being fully drained. alkaline battery's can start leaking. lipo's will litterally just blow up. and rechargable battery's won't recharge when they are overdrained.

@KLondike5 2 года назад

@@darkracer1252 But some devices have a basic way of checking if the battery is low & assume alkaline is used so will auto off at what's a low alkaline voltage but is a perfectly long lasting nimh at 1.2 volts. Or if you're using 4 cells, the difference of being over a volt lower results in circuit or brightness problems.

@darkracer1252 2 года назад

@@KLondike5 yeah you're saying that you would have removed the battery long before dangerous levels because the lights start to under perform?

@Omapk 2 года назад

What a lovely look, I can think of tons of small model projects I wish I had these for years ago.

@Sb129 2 года назад

These look insanely cool!

@jstro-hobbytech 2 года назад

I ordered some of those last week haha. They're awesome.

@Ghlargh 2 года назад

I bought some of these a few months back and figured out why the light is uneven at the ends. The idea that feeding the strip from both ends like this will make the light perfectly even is a fallacy, it will drop the unevenness to about a quarter of what you get if feeding from one end but the light will still be lowest the furthest from the ends. Try drawing up a schematic of the strip with the conductors as resistors and you will see that the voltage drop between LEDs is greatest at the end where one polarity has a very high current (the number of LEDs times the average LED current) and one has a very low current (one conductor will only see the current from one LED at the end of the strip).

@haroldsmith45302 2 года назад

The problem could be solved by equalizing the current per unit of cross-sectional area of bus rail conductor material. Each bus rail needs to be tapered; N-times as wide at it's solder tab end as it is at it's remote end, where N = the number of LEDs per section.

@Ghlargh 2 года назад

@@haroldsmith45302 Good thinking. It would be interesting to see if it's viable to make one end thick enough while maintaining minimum conductor size on the other end or if the strip becomes unreasonably wide.

@pcrengnr1 2 года назад

@@haroldsmith45302 You're right about the tapering. The current diminishes as you go down the string to the last LED. Try simming with LTSpice or your fav spice and parameterize the resistors with an eqn. That's all I got.

@carlbrenninkmeijer8925 2 года назад

Darn, I just disposed of our Christmas tree. 🎄 Many thanks, plenty of time for Christmas 2022, and I know now how they work !

@C0mmentC0p 2 года назад

Didn't know these existed, really interesting things I really want to buy some now...

@francoisleveille409 2 года назад

Now THAT is a brillant idea! Lots of ODE such as anne-ODE and cath-ODE.

@stevenmiller279 2 года назад

These have a really cool look.

@intocoasters 2 года назад

These are cool! I can see some interesting costume and prop possibilities! They seem (on video as least) much brighter than EL wire. Very cool find!

@jkobain 2 года назад

Damn, they look so cool! No wonder a lot of us your viewers will inevitably go out for shopping in search for them.

@tmmtmm 2 года назад

The LEDs at each end of the strings being brighter is due to voltage drop on the PCB making the center LEDs dimmer. Every LED sees the same overall trace length but the average current over the traces is higher for the center LEDs (100LEDs of current rising to 200LEDs, in either direction) therefore they suffer higher voltage drop, compared the the LEDs on the ends (1 LED current near them, rising to 200LEDs current at the far end). The current is probably quite unbalanced to make a visual difference like that - I wouldn't be surprised if the center LEDs are drawing half the current compared to the ones at the ends. Problem can be solved by dividing the string into multiple parallel connected shorter strings with dedicated traces but of course that requires more than 2 traces.

@warpeggioslab 2 года назад

Would it help if the supply traces were thicker?

@j8wydf6 2 года назад

@@warpeggioslab or taper the traces so that the resistance is lowered where current is highest but increased where it's lowest. The current to the middle LEDs would flow through the thickest parts of the traces on both sides. The current to LEDs at the end would flow through a short thick section on one side and long thin section on the other.

@PabloEdvardo 2 года назад

It could also be due to the light reflecting at the ends in the silicone covering, since it appears that some of the light is diffused through the covering material and therefore would act somewhat like a fiber optic string

@tmmtmm 2 года назад

@@warpeggioslab yes. But in theory you need an infinitely wide trace to have completely even current distribution.

@nightlore000 2 года назад

Interesting Video Clive .. Not seen long LED filaments before .. thank you for posting .. 👍

@A_Casual_NPC 2 года назад

I'm only slightly disappointed this video isn't called "how loooong LED filaments are made" because that's definitely how I read it. :)

@gregorythomas333 2 года назад

Very neat lights...I can see a bunch of different ways to use these all over the place :)

@UhrwerkKlockwerx 2 года назад

Man, those LED filaments are so pretty.

@danielcobo8263 14 дней назад

min 8:30 till 8:40 it's just gold. Thank you for the video

@WKDPOWER 2 года назад

I didn't even know this stuff existed, and now I want a box full. Can't think of any use for it, but still want it 😁

@kawzmOS 2 года назад

Great video, Clive!

@evilutionltd 2 года назад

They call it tombstoning when SMDs flip up when the solder paste is flowed. That's liquid surface tension working against you.

@bigclivedotcom 2 года назад

Yeah, it's odd that it did it sideways though. It might even be a sticky pick 'n' place machine that did it.

@g.j.647 2 года назад

@@bigclivedotcom It would be interesting to know, what feeding system is used for the pick and place machine (bulk, tape, tray, ...?). My suspicion is, that the LEDs are already rotated when they are placed. At least this is a manufacturing quality issue. That's China quality and they can still export the bad items to foreign countries.

@rushilkisoon 2 года назад

I was curious as to why they had such short lengths… then I realised it’s meant for those “filament” type light bulbs.

@ThePiprian 2 года назад

There are versions of these on aliexpress up to 5 meters long. Not sure how well those work though.

@rushilkisoon 2 года назад

@@ThePiprian 😭😭😭 I didn’t need to know this. Now I have no excuse to not strip out my car EL wire and replace it with these… at least it’ll make good video content 😂

@thefixitgal 2 года назад

Those are so coool!!!!! I can think of so many things to do with them

@Fasteroid 2 года назад

Those are some very pretty glow noodles. Truly do look like tiny neon tubes.

@kerzwhile 2 года назад

The ability to be able to pixel map these would open up an entirely new world. This is incredible! 😉🤔

@mrmattandmrchay 2 года назад

Very interesting, loads of LEDs inside!

@bendungeon5677 2 года назад

These string lights are soo flexible and useful for birthfays, special dinners etc. I can bend them around corners in tight spaces no problemo i guess

@bendungeon5677 2 года назад

I never see them in shops

@rushilkisoon 2 года назад

I didn’t know this existed, and now I want it!

@Addixxtion 2 года назад

Ooh I think I've found want I was looking for, I've had EL wire for projects but they tend to be quite dim in any other setting but total darkness, ideal for Halloween costumes I suppose where you're likely to be in a dark setting. But these seem way brighter and more suited to most light settings. Thanks Clive for bringing these to my attention, I shall go hunting for them.

@ComputerGenius10 2 года назад

These are really interesting - never seen anything like it

@piconano 2 года назад

Wow! I've never seen one before! Thanks.

@zebo-the-fat 2 года назад

Wonderful stuff, I want some... but can't think what I would do with it!

@jkobain 2 года назад

You are not alone in this river. ;D

@Alakazzam09 2 года назад

I saw Norm from Tested use these in a project and got some to make a Halloween mask for my nephew last year. They work great but the end connectors can be VERY fragile and sometimes the copper tabs flake off. I reinforced the ends with a layer of clear tape then some careful use of hot glue. The ones I bought could be trimmed to size but I designed the mask so I wouldn't have to. Cutting and exposing the contacts on the cut end was a nightmare in my test piece. They ran great on a battery pack all night, the kid loved it.

@ThePiprian 2 года назад

Do you have a link to the trimmable ones?

@Alakazzam09 2 года назад

@@ThePiprian There is so much of it I don't think a direct link will be useful. It's commonly called "EL wire" though and most of it is technically trimmable. Mine had small black lines on the underside where it could be safely cut and still work. They all seem to be pretty similar in my experience so don't over pay. Also check out the Tested video for tips on working with it. It'll save you a lot of frustration.

@ThePiprian 2 года назад

@@Alakazzam09 Thanks for the answer! I thought el wire was a different technology that uses a lot more energy than LEDs?

@Qwarzz 2 года назад

@@ThePiprian Yep, very different. Uses AC voltage for starters so requires special power supply.

@peterjameson321 2 года назад

You've done it again Clive. Another brilliant and informative video. I'm sure that many of us have been wondering about these LEDs. You didn't say though if they are resistant to being stretched. Perhaps you could add a note about that.

@bigclivedotcom 2 года назад

Stretching them will break the strip.

@peterjameson321 2 года назад

@@bigclivedotcom Ah, I thought as much. Thanks for the extra information Clive. Keep the vids coming, you're a great presenter!

@carlubambi5541 2 года назад

I remember electro strip flexible rope lighting ,they were 1/2 inch diameter and used tungsten lamps ,now they are LED and down to 1mm diameter .So many uses for them

@jdrissel 2 года назад

I had about 600' of green tungsten rope lights in my Xmas decorations one year. Won second place, but used over $1000 in extra electricity. My front yard drew 34 amps at 120v!

@AuntJemimaGames 2 года назад

If they come up with a way to create flexible LED filaments that still work after cutting, they will be the best thing so far for any kind of DIY costume/diorama build!

@bigclivedotcom 2 года назад

LED neon can be cut every 25mm (1"), but is bulkier.

@EldaLuna 2 года назад

interesting leds indeed. i have some vintage styled bulbs with that amber type of those in use. one of the glass shells broke on one and i dont even know what happened but it was interesting seeing how soft and flexible that stuff is. i just put on liquid electrical type on the exposed parts and just continued to use it as nothing wrong with it other than the glass bulb gone now.

@licensetodrive9930 2 года назад

I may have to get some of the string type, they look very interesting and I'm quite curious to see what they look like in person since it's so difficult to video/photograph light sources like that and have them look like they do with your naked eyes.

@realcygnus 2 года назад

Nifty ! If only Edison could see how lighting has evolved.

@Fluxkompressor 2 года назад

The Fact that the inner section of the filaments are dimmer than the outside made me curios and so I fired up LTSpice and put something together. And despite the fact that each led has the same length of track on the circuit board and also the same resistance in series, they get different currents. Lower in the middle and higher on the ends. This makes no sense if I think about it, but Spice says so

@treelibrarian7618 2 года назад

The dimness in the middle makes sense if you think about voltage drop in each wire segment. The first wire segment in the bus has the current from all 200 LEDs and the last one has only the current from one LED, and therefore only one 200th the voltage drop. If the LEDs all draw the same current then the graph of voltage drop would be a half-parabola, and with two opposing half-parabolas (flipped in both x and y) the middles are clearly closer together than the ends, indicating more voltage available to the end LEDs. The effect should be tiny, but LEDs are very voltage sensitive so it becomes visible.

@TechGorilla1987 2 года назад

That is absolutely bad-ass.

@joepearson1177 Год назад

Dude just found ur page, LOVE how well u break stuff down and talk it alllllllll out! So helpful and bc this video and one on wireless leds I’m gonna try my first project!!!!

@keyring8368 2 года назад

I saw some of these on a costume in a Sci-Fi show. Thought those are cool, wonder how they did it or what they are. Now I know, very awesome, gonna find some myself.

@dcallan812 2 года назад

Nice effects tested's neon looks OK. this type of strip could have so many uses I might get a few and play.

@tijmenstam5841 2 года назад

Could it be that there is a double bus wire somwhere connecting at both ends, which makes both ends see a 3-0=3V voltage, while the LED's in the middle have a slight voltage drop meaning they e.g operate at 2.9-0.1=2.8V?

@LoftechUK 2 года назад

They are cool Clive but I think I will wait for the newer ones so thanks for the heads up

@Hex-Mas 2 года назад

This is useful thanks.

@natjzam 2 года назад

Not sure if its a universal term, but when I used to work on reflow ovens we called that phenomena of chips rising on their side tombstoning. its common to happen during solder wetting if the flipchip alignment is off

@Gin-toki Год назад

can't wait till we get some of these with individually addressable leds :D would of course require an extra connection point in each end of the filament, but that's okay.

@UpLateGeek 2 года назад

Very attractive!

@user-hk3ej4hk7m 4 месяца назад

The strips being dimmer in the middle could be total internal reflection causing them to act similarly to a glass fiber. To check this you can try to bend the strip and see if it gets brighter on that spot.

@DoRC 2 года назад

I wonder if the silicone is acting as an optical fiber causing light to travel to the ends making them brighter

@markscheutzow3446 2 года назад

Try gasoline, I know that automotive silicone compounds can't take it. Also, silicone oil (polysiloxane) will slowly soak in to silicone rubber over time. Both eventually turn it into a bloated jelly mass.

@TechGorilla1987 2 года назад

I'm not sure your sequence of filming, but you sound well here. That pleases me.

@DJEonT1 2 года назад

The illumination on these look great. But something makes me think running it around the skirting board in my living room might be a bit costly. Whilst I'm wishing, can I get 2812 addressable LED versions instead. a run of 20 meters for less than £30 would be great !

@hermannpaschulke1583 2 года назад

Oooh, that's cool!

@ConstantlyDamaged 2 года назад

I remember using the flexible neon wire that looked the same, though it required a little high-frequency driver.

@bigclivedotcom 2 года назад

Electroluminescent wire is common on eBay. But very dim compared to this.

@Quickened1 2 года назад

The other problem with el wire is that it is nowhere near as flexible. I love the consistent light output of el, and you can get it in pretty much any length you want it, but there are pros and cons to each of these...

@ConstantlyDamaged 2 года назад

@LabRat Knatz Huh. Guess there was a big shift in quality in the drivers. I was using the stuff, cut into shorter lengths and joined with wire, inside computer cases as displays. One of the specials I did even had it glued to the ram heatsinks and used some hardware to make an audio VU meter out of it. Needless to say, there was no audio noise and system stability hadn't been compromised.

@robert574 2 года назад

In your next video I expect to see you standing there all lit up with these. Big loop earrings, wrist bangles, head band... I can picture it now.

@GAMakin 2 года назад

True LEDs are born not made... Oh! THOSE LEDs. Blimey! Crossed circuit there. Still recovering from New Year's Day... Solder-ON!

@ShhheilaASMR 2 года назад

i have no electronic ability at all but if i stabbed each end of that on a CR2032 would it light up?? You mention 3V....??

@ParallelLogic 2 года назад

Could varying brightness be associated with varying thickness of the PCB?

@kevinmartin7760 2 года назад

There is a product available here to soften and clean up silicone sealant/adhesive. It is sold in the plumbing section of hardware/home improvement stored, and used to clean off old silicone sealant that was used to seal around shower stalls and such when renovating. Perhaps it might soften the silicone in these filaments.

@greentjmtl 2 года назад

Bought it once, pretty sure it's just kerosene in gel form.

@kevinmartin7760 2 года назад

@@greentjmtl Must be a different product. IIRC the stuff I had seemed to be water-based and had no kerosene smell at all

@SuperAWaC 2 года назад

there are various silicone digesters and other solvents which work on silicones

@StubbyPhillips 2 года назад

Way cool!

@GiorgosLysigakis 10 месяцев назад

Hi and thanks for the video. How do you solder them to work in series. In what order. Thanks.

@kevinhardisty6465 2 года назад

I’ll be getting some of those for my PC case

@jpdemer5 2 года назад

Solvents will swell the silicone, and eventually turn it to a jelly-like mess, but to break the cross-links and actually dissolve it away is a very different process. Acetone + ispopropyl alcohol, with a splash of ammonia, might do the trick. The LEDs at the ends glow brighter because that's where the voltage drop is greatest. (Imagine pipes laid out in a ladder pattern: the flow through the middle rungs would be lower than at the ends.)

@AlphaBeta-cf5wf 2 года назад

I've never tried it myself but if you are looking to dissolve silicone you could try heating with a strong base (Sodium hydroxide), and maybe an organic solvent like THF to get ride of any organic polymer/plastic.

@DrakkarCalethiel 2 года назад

This stuff will be so useful for costumes!

@bryansychingiok 2 года назад

If you need a shorter length. You can cut it to size then burn one end. If you are careful you can expose the conductors. Some projects require a fixed length because I have no place to hide the surplus. They are really wiggly and hard to manage. No glue will stick to it as well.

@Simcore999 2 года назад

I ve been testing with mine, the string plugs at only one end and it has two flimsy wires, one seems painted isolating it from the other single strand not isolated so not sure if they are from different technologies...

@GWorxOz 17 дней назад

Always good.👍 👍 👍 👍

@nicksantitoro 2 года назад

Can you please try to make either a necklace or bracelet with these? It could use something like a cr2032 battery in a little case to act as both the power source, and clasp to hold the ends together.

@NicksStuff 2 года назад

3:44 I wonder why that is the case. Maybe the pads that hold the LEDs in the middle are slightly thinner? Like there is some stretching happening before they're coated in silicone?

@techtinkerin 2 года назад

They look like those chemical light necklaces you used to get in Blackpool 😊❤️👍

@Flyingwigs 2 года назад

The red ones I received are fairly bright and evenly lit, I don't think any have the brighter ends like yours do. They are very fragile though, I had one break in the center somewhere and is now intermittent, if using for an everyday items, I'd add some additional protection.

@a68k_de 2 года назад

yes the sellers DON'T WANT to understand. I found the soldering tipps too, and the prices are so different in Ali. Second time I order from the same seller, because these soldering tipps are really a handy thing, they were out of stock and I had to fight to get my money back...

@Brian_Boxtruck 2 года назад

That's pretty rad. Mind sharing the video of the model neon you saw Clive?

@bigclivedotcom 2 года назад

I'll add the link to the description too:- ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zhe8d9NgcsI.html

@JB-fh1bb 2 года назад

Can you please link to the flexible warm white (aka orange) version you got? The link is Red, Pink, Green and Blue only.

@ableite 2 года назад

8:09 - thanks for the clarification. Makes sense.

@mmdirtyworkz 2 года назад

Dammit, just ordered some. Now I need to find use for them other than being cool :D

@twocvbloke 2 года назад

Rather apt as I have some on the way from aliexpress too, though in just red, green and blue, mostly to play with like little illuminated noodles... :P

@gentuxable 2 года назад

I want this in my PC!

@frollard 2 года назад

Could the uneven light be the thermal tempco causing the ones at the end to 'with fewer neighbors' to be cooler/brighter at the same current? (total spitball)...Because of the silicone insulation and hair thin traces there would be very little heat movement along the length so once a temp gradient sets in it feeds back on itself like many old school led parallel projects without resistors.

@frollard 2 года назад

Seller being dicks: could very much be an automated algorithm: "We have 100 stock, first 20 regular price no discount to cover the cost of the manufacturing run, next 70 are cheaper 'on sale' price, 10 remaining stock 200% price to slow demand until a new batch can be brought in. A rush of purchases just moves the price along.

@jaro6985 2 года назад

No it appears instantly, good idea though.

@eldareongazer1270 2 года назад

each time i see this type of leds i think how body compatible would these be? because if the silicon is a body compatible one, so you could technicly implant these under the skin or something like that and have a led tattoo? andhave an internal baterry pack like a peace maker or a nfc coil wso it will wireless power up?