Spiral LED filament lamp teardown. (With schematic.)

Рет қаралды 115,054

7 жыл бұрын

An interesting new direction for the LED filament lamps. At first I thought these were just using a longer version of the metal filament base, but it's a completely new style of LED filament.
Note that most of these seem to be aimed at the higher voltage European mains supply of 220V to 240V, although the design of the filament means they can easily manufacture a version with the LEDs in a different series/parallel configuration for lower voltages.
Here's a search link for the 220-240V version. (Not suitable for America or Canada yet without a voltage doubler or dodgy 220V lighting socket.)
www.ebay.co.uk/sch/i.html?_fro...
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

Пікірлер: 426

@ocno 7 жыл бұрын

That glass shattering sound at 1:22 is so perfectly satisfying that it sounds like professional stock audio dubbed over the video.

@muh1h1 7 жыл бұрын

Totally agree, listened to it over and over again :D

@bigclivedotcom 7 жыл бұрын

I have to admit I did repeat that bit of the video a few times when I reviewed the footage. It sounded great in real life too.

@DrakkarCalethiel 7 жыл бұрын

bigclivedotcom Well that mic is just awesome! I thought someone is shattering some glass in reality.

@Algray_ 7 жыл бұрын

Hey Clive, could you give a look at this charger on banggood? www.banggood.com/Qualcomm-Certified-BlitzWolf-BW-S5-QC3_0-18W-USB-Charger-US-Adapter-with-Power3S-Tech-p-1032821.html?rmmds=search There's a video showing the pcb of it, do you think it's worth the price it's on right now?

@tylergarza6632 7 жыл бұрын

I could have sworn it was fake for a minute xD

@frogz 7 жыл бұрын

seeing you break the lamp and it keep working unlike a tungsten that'd go up in a puff in smoke was so satisfying

@shemp308 7 жыл бұрын

Clive I think I know how you got into this. The excitement in your voice when you smashed the glass proved it. YOU JUST LIKE BREAKING S***.

@gmc07joe 7 жыл бұрын

@3:52 "it's so floppaaay" that's what she said! 😂LOL

@madcarl666 7 жыл бұрын

I love the sound of breaking glass 👍 Love the way access was gained.

@theskett 5 жыл бұрын

Thanks for this earworm :) Nick Lowe: kzfaq.info/get/bejne/gM6mnbeUtbi9qWg.html

@jlucasound 5 жыл бұрын

It has a Dark side and a Light side, just like the Force. Priceless. :-)

@orinokonx01 7 жыл бұрын

The glass shattering sounded so comical! Hahah

@-djs 7 жыл бұрын

Regarding the quicktest Clive, I got mine from CPC Farnell here in UK and it was and still is around 20-25 quid. hope this helps someone. great vids as usual. loving the new floppy LED filament.

@aspicboat 7 жыл бұрын

the sound of that glass shattering was pretty baller

@Uninflected_ 7 жыл бұрын

It would be fun to get a hold of some of that type of filament and make you own custom bulbs!

@joinedupjon 7 жыл бұрын

I immediately thought of making a 'cock & balls' lightbulb... probably because I've just come back from Blackpool

@stinkycheese804 7 жыл бұрын

Fun or PITA reinvention of the wheel? You saw in the video the easy way to get the bulb apart. Don't "always" assume that buying a subcomponent integrated into a whole product, will be much cheaper than buying the entire product. Take for example project enclosures, in many instances I'm able to buy an entire working product for less than a similar enclosure to what it's in, would cost purchased separately.

@nathandean1687 7 жыл бұрын

www.dhgate.com/wholesale/neon+rope+light+led.html here you go

@BrassLock 7 жыл бұрын

+Nathan Dean : Amazing possibilities Nathan; can see these about to pop up everywhere at those prices.

@arfyness 7 жыл бұрын

I think those are a much dimmer style for accent, not illumination

@DustinRodriguez1_0 7 жыл бұрын

This honestly was probably the most fascinating video you've ever made! Thanks for it!

@pierre5325 7 жыл бұрын

"A dark side and a light side..... just like the Force" Hi Big Clive, just to say I love your little side comments slipped in every now and then. Thanks also for the teardown and explanation of the LED Filament lamp. With videos like yours, I just can't seem to watch TV anymore. Blessings, pierre from New Mexico p.s. I wish my partner would let me grow my beard as long as yours.

@jamtastic3 7 жыл бұрын

That moment you brought out that huge calculator had me in absolute stitches. It's rediculous! :P

@HillsWorkbench 7 жыл бұрын

Love the printed blow-ups! Very effective.

@dustysparks 7 жыл бұрын

He must spend a small fortune in ink, then again I think he uses refill kits based on a video from YEARS ago.

@AwsomeVids83 7 жыл бұрын

Dustin Sparks I believe he buys ink in bulk, as in 500ml at a time.

@JuanHerrero 7 жыл бұрын

He uses a continuous ink system (very cheap, you fill the ink reservoirs from a bottle).

@dashtesla6431 7 жыл бұрын

Can't you take the power meter apart and flip the socket 90 degrees? That would solve the problem i guess

@raymondj8768 7 жыл бұрын

a dark side and a light side just like the force hahahahaha you crack me up mr clive lol

@jlucasound 5 жыл бұрын

You beat me to it. Or did you? ;-) My name is Lucas. :-) (No relation, but I do love Star Wars Movies).

@Mannedavid 7 жыл бұрын

Hey Clive! I always love your videos :) I am currently doing an apprenticeship as an electronics engineer :D (already got 1.75 out of 3 years) I already learned a lot from youtubers like you :) Thanks!

@JDfromWitness 7 жыл бұрын

One other thought regarding the secondary resistor circuit might be to satisfy the firing circuit in a triac dimmer. If it presents itself as an open circuit, the voltage on a series mounted wall dimmer will never charge the cap that fires the triac. I am reminded of theatrical dimmers, where you often need several watts of load for the SSR's to properly fire, thus requiring small ghost loads with certain LED products, like rope lights.

@orinokonx01 7 жыл бұрын

"You see as I rotate this, it has a dark side and a light side like the force." ohhhh Clive! hahahaha

@Roy_Tellason 3 жыл бұрын

And duct tape!

@abcdefgh1279 7 жыл бұрын

Who else wants to see Clive drawing two hundred LEDs? Huh? Nobody? Life is brutal :(

@stevematix 7 жыл бұрын

abcd efgh hahahaha

@thetrueinferno7993 7 жыл бұрын

Not enough, more LEDs! At least 420,Oh and dont forget RGB, he needs at least 420 rgb leds! MORH RGB! RGB IT ALLLLLLLLLLLLLLLLLLLLLLLLLLL

@TheArniBigas 7 жыл бұрын

ah yes I'd watch it. Could make it an AMA type of thing, where Clive tells one of his work stories or whatever. Those are always fun.

@skagerstrom 7 жыл бұрын

#rgbeverything ;)

@qwertyasdf66 7 жыл бұрын

I came to the comments section just to mention that : )

@georgestewart5879 7 жыл бұрын

Stranger but I really look forward to these videos. Keep up the good work.

@TheMajorLim 7 жыл бұрын

When Clive flashed the transparent plug my heart fluttered!!!... I need that.

@bigclivedotcom 7 жыл бұрын

cpc.farnell.com/pro-elec/9518-13a-20-box/mains-plug-transparent-13a-fuse/dp/PL13961

@TheMajorLim 7 жыл бұрын

oh Clive. they are so pretty. you spoil me.

@KuhanVincek 7 жыл бұрын

"Just like with the force" Made my day Clive :P

@Falcrist 7 жыл бұрын

Snagged one of the Quicktest things. Looking forward to blowing things up with it! :D

@MarkShannonroad_videos 7 жыл бұрын

This is the stuff of dreams! A incandescent looking bulb that's LED! That's cool.

@thehappylittlefoxakabenji8154 7 жыл бұрын

another very informative video on Leds I like these type of lamps I still have a few conventional long filament bulbs the earliest being the tube lamp with a full length filament no doubt there will be an Led version of that

@shitbag. 7 жыл бұрын

I've seen many of your videos and always watch the new ones. I never have a clue what you are talking about but it's cool and you make me laugh sometimes.

@tncorgi92 7 жыл бұрын

"The Latching of the Triacs" sounds like a sci-fi novella.

@Christian-vi9pl 7 жыл бұрын

Big Clive for a Bedtime Story!

@shasterdhari 7 жыл бұрын

I like when he makes schematics.

@JUANKERR2000 5 жыл бұрын

As Clive started hitting the glass I actually backed away from my PC screen!

@RambozoClown 7 жыл бұрын

Very interesting. I can always count on bigclive to have his finger on the pulse of LED lighting. Now I just need to think of some cool use for something like this.

@b1aflatoxin 7 жыл бұрын

These bulbs are getting cooler and cooler, ...so glad I never bought any of those trendy squirrel-cage Edison's that are just a pretty, pricey and inefficient waste of money compared to LED filament. - Awesome teardown!

@clintonscott9623 5 жыл бұрын

Yep, on big Clives videos there's rarely any going back when he opens a device to reverse engineer it.

@shurdi3 7 жыл бұрын

Impressive that the relatively small capacitor is doing a pretty good job not inducing flicker for most of the sine wave

@PaulPaulsen 7 жыл бұрын

7 LEDs per cm correlates nicely to 18 per inch. would be nice to see some tiny neon signs made of these strips. make one of those, please :)

@mysock351C 7 жыл бұрын

That's really interesting with the second shunt circuit. My first instinct would be to slap a cap across the regulator to give smooth DC, but then the PF would go to shit from all the charging spikes each time the LEDs pulled current. I suspect it also helps improve the power factor as well by sustaining a load between conduction of the LEDs.

@68MalKontent 7 жыл бұрын

One other effect this compensation circuit has is probably a slight improvement of the power factor. The current will still be a bit phase shifted in relation to voltage due to the capacitor presence, but it will be more uniform as opposed to practically no current drawn when the voltage isn't high enough for the LEDs to start conducting.

@Ni5ei 7 жыл бұрын

As you know I have a couple of these bulbs and I'm totally surprised the filament is flexible. It really looks like the straight filaments and they are stiff and break pretty easy.

@samj1012 7 жыл бұрын

thumbs up . another great RE video...

@twocvbloke 7 жыл бұрын

Floppy LED filaments? It's the future!! :D On thing that would be simulated, at a guess, would be "filament wobble" as per tungsten lamps when bumped producing a bit of brief wobbly light, so getting even closer to traditional bulb features and styles... :)

@amorphuc 5 жыл бұрын

I'm a little late on this one but WOW! Freaking amazing. It would be awesome to see a little video of them making these filaments. Great video BTW. Breaking glass AND the mention of The Force. What more could one ask for?

@MilesUmbrae 7 жыл бұрын

If I was an electrician I could have SO MUCH FUN with that rubbery filament!! XD

@russellhltn1396 7 жыл бұрын

Since this has a diode and capacitor, I wonder how well it dims. I'd think it would have to exaust the cap by the end of the half cycle, or else changing the triac switching point won't do much.

@muzikman2008 7 жыл бұрын

Amazing how far Led lighting has come in a few years. A fluorescent to be filled with these would be a great replacement for standard mercury vapour lamps.. Interesting..

@BrendanPerkins 7 жыл бұрын

If you ever do draw 200 LEDs on the notepad, just speed the video up with Yakety Sax music in the background.

@kendrakirai 7 жыл бұрын

That is one hell of a calculator you've got, Clive, *wow*!

@CharlieFlemingOriginal 7 жыл бұрын

ting ting ting ting ting ting ting ting SMASH "that's it open!"

@timb7085 7 жыл бұрын

Interesting LED strip - would love to see these sold separately - but after some searches, the only thing I could find were references to a company called Liquidleds... As always - great video, Clive!

@davidcoghill8612 7 жыл бұрын

It is possible to neatly cut a glass bulb with a file. Get a triangle shaped needle file, and scratch all the way round the outside. A gentle tap should crack it along the line.

@locouk 7 жыл бұрын

They are really nice looking, 4 watts isn't a useable light for illumination of a room unless you like dark and shadowy. However, saying that I would buy a pair if they came with B22 fittings, they all appear to be the Edison screw fitting though. On a side note, my B22 light fittings are a Bakelite bayonet and where I've been putting cheap Edison to B22 adapters, half of all the retaining bayonet has chipped off. Gotta love them wonkey bulbs that can drop at any time lol

@ihateexcessivelylongandpoi4490 7 жыл бұрын

You could land a jumbo jet on that calculator.

@rarbiart 7 жыл бұрын

this pink socket is... special!

@jonathancook4022 7 жыл бұрын

You could make some pretty awesome rope light with that filiment!

@samschannel531 6 жыл бұрын

3:53 ITS SO FLOPPY

@b3j8 5 жыл бұрын

That's what she said! Sorry...couldn't resist.

@whidbeyman 7 жыл бұрын

the 2nd circuit with the load resistors also improves the power factor

@Furiends 7 жыл бұрын

This power supply Makes Sense(TM), instead of a SMPS and filter caps which is excellent for current limiting while having a lower power factor instead its a waste gate driver with essentially a large network of resistors. Great you got 30-40% better power factor for 20-30% efficiency! I'm pretty reasonably sure they are doing this to be cheap not to increase power factor. The documentation has no efficiency specs. I wonder why? So I looked for typical current application .. nothing about that either. Amusingly the temperature compensation seems to suggest its the LEDs getting hot thats the problem when I know perfectly well that the problem is the this chip getting hot.

@ondra521 7 жыл бұрын

Make a safe kV battery powered source, tie more of them together and use as shoelace :D

@AwsomeVids83 6 жыл бұрын

ondra521 That would be too cool! If I can find the filaments by themselves i may try something like that!

@fp4man542 7 жыл бұрын

Those lamps look very interesting. A pity that they only seem to be available in Edison Screw rather than B22 bayonet fitting.

@gordonlawrence3537 7 жыл бұрын

I was wondering if the extra resistive circuit was also to improve power factor correction as the LEDs would not be conducting anywhere near the zero cross part of the cycle. It wouldn't make a huge difference but I bet it makes some.

@audiocrush 7 жыл бұрын

they are selling dimmable led filament lamps now on ebay... might be interesting to see if the work on a phase angle control dimmer, and how they do it or if they even work at all

@TheRasteri 7 жыл бұрын

Join some filaments together and write your name in light!

@ratchet1freak 7 жыл бұрын

I think the resistive side's sense resistor in in series with the led sense resistor to ensure the resistor side shuts off/regulates down before the led side does.

@joinedupjon 7 жыл бұрын

BTW I checked out the poundland in Blackpool at the weekend & it seems they've a new LED lightbulb out. 6W with the electrek brand name printed on the translucent envelope. pastel blue cardboard box iirc. presume they'll be filtering out a new range as the older ones sell thro' also a car cigarette lighter to usb charger adapter at 0.5A

@stevesm2010 7 жыл бұрын

Always interesting

@radiocaf 7 жыл бұрын

Didn't expect the LEDs to be rubbery and floppy.

@CANTON76A 7 жыл бұрын

Flexible filament... This could be the greatest invention since, I wanna say sliced bread but to stay on the subject, since LEDs.

@captainscentsible1811 4 жыл бұрын

To bad we cant use them with solar power. I dont think solar can power these

@Matt_The_Hugenot 7 жыл бұрын

One obvious application flexible filament is lettering. Names or initials will be appearing shortly.

@MegaWayneD 7 жыл бұрын

Brilliant vid, as always! The smashing of the glass was particularly satisfying.

@mdamaged 7 жыл бұрын

Could you get a bigger calculator?

@agurdel 7 жыл бұрын

You should get a bigger calculator. It doesnt fill the frame completely.

@punio4 7 жыл бұрын

Oh wow. Can't wait until I can buy these per meter to replace side-firing fiber optics. Those are great but need a really powerful driver.

@semidemiurge 7 жыл бұрын

I think they are using Epistar LEDs. ES-EEDBF08H Looking into the flex cob technique and where they are sourcing it.

@Languslangus 4 жыл бұрын

Just like the force.

@jaifarrell 7 жыл бұрын

Clive, I don't think your new calculator is big enough.

@josephf151 7 жыл бұрын

Wow I actually got something off eBay before bigclive! I am glad you tore this one down, I got mine for $6, but then it sold out and now all of them are $15+ so I am not buying any more for a while. I wonder how mine works though, as it is 110, but clearly is a series chain of LEDs.

@semidemiurge 7 жыл бұрын

do you have a link to the ones you purchased?

@josephf151 7 жыл бұрын

Sadly no, they were on eBay under flexible LED filament bulb, but now only the seal light ones can be found, and those are, in my mind, too pricey. I am sure more will come to eBay over time though.

@josephf151 7 жыл бұрын

what is really odd, is that fact that I am fairly certain the 110 model I have has around twice the length of filament.

@josephf151 7 жыл бұрын

Never mind, found it! www(DOT)ebay(DOT)com(SLASH)itm/Dimmable-E27-COB-LED-Vintage-Industrial-Edison-Lamp-Filament-Light-Bulb-110-220V-/292020133279?var=&hash=item43fdc19d9f:m:mflYxf3mvEkFFiA0Q1FdwNw

@semidemiurge 7 жыл бұрын

www.alibaba(dot)com/trade/search?fsb=y&IndexArea=product_en&CatId=&SearchText=led+spiral+bulb&isGalleryList=G&viewtype=G

@reddcube 7 жыл бұрын

I wounder where you could bulk buy the flexible LEDS. It looks like a much bright alternative to EL wire.

@AwsomeVids83 6 жыл бұрын

B. Winky the problem is that the leds are all in series, so the voltage required to run a long segment of this would be huge.

@richfiles 7 жыл бұрын

How tight a bend is safe with that filament? I have an old 1939 Philco radio cabinet as my PC case, and had the idea of trying to mimic either the look of a neon sign or a nixie tube to spell out "PHILCO". This has got me wondering now tight can the filament be reliably bent. My prior plan was bent frosted plastic with LEDs hidden to light it.

@bigclivedotcom 7 жыл бұрын

I don't think it could be bent too tightly without risking damaging the internal LED bonds.

@dodeblakley5621 7 жыл бұрын

richfiles I was thinking Big Nixie tubes.

@lights-fo8et 7 жыл бұрын

richfiles another commenter gave the link of m.dhgate.com/wholesale/neon+rope+light+led.html which appears to bend very well, but some of them may be EL wire.

@DavidWatts 7 жыл бұрын

Anyone know of a good source of DC LED filament bulbs? 12v ones would be great.

@i-will-get-you-there 7 жыл бұрын

simple google search reveals this ! "amazon.com/Filament-Voltage-Photography-Production-Lighting/dp/B01FU538P8"

@BrassLock 7 жыл бұрын

+I_will_get_you There : The close-up photos on that link are superb. If any bulb manufacturer kept their old incandescent glass-enclosure machinery, they'll be in a good position with this latest LED fashion.

@68MalKontent 7 жыл бұрын

By the looks of those lamps they use the standard "filaments" and some step-up converter in the base.

@DavidWatts 7 жыл бұрын

Thanks, I was hoping someone out there had some experience with them. Those look cool though

@raymondzou4373 6 жыл бұрын

We produce AC/DC12V led filament bulbs,contact us raymond@ustarled.com

@q12x 3 жыл бұрын

fascinating !

@Steve211Ucdhihifvshi 7 жыл бұрын

nice video

@peterlindsey4178 7 жыл бұрын

Those things are beautiful. Supposedly dimmable, too. Did you try dimming it? Also how was the flicker? They seemed very stable on cam.

@abellujan66 7 жыл бұрын

That glass shattering was so real it sounded fake

@bobriemersma 7 жыл бұрын

So 1.5 W of 4 intentionally burned off as heat? Surely a 3rd stage with a shorter LED string could be engineered in to make productive use of 1 W or so of the off-peak power?

@okicom 7 жыл бұрын

i saw some led is having very high vf these days (as high as 60-70v) and very low component count on final assembly unit, i think the days ccfl obsolete is getting faster.

@CaptainParalytic 7 жыл бұрын

Can't help wondering why they used glass to encase it when plastic would be stronger and lighter.

@TrollFaceTheMan 5 жыл бұрын

The glass actually acts as a heat sink. They fill it with typically Helium which draws heat away from the strip and carries it to the glass.

@mandolinsara 7 жыл бұрын

Is there any way to buy that LED filament in bulk? That's so cool!!!!!!

@mikecummings7054 3 жыл бұрын

Reminds me of the old GEC Osglim bulbs.

@misterhat5823 7 жыл бұрын

Impressive. A MOV in an Ebay product.

@tazzman62 7 жыл бұрын

So many ideas for that stuff. Wonder what there life span is.

@mrjohhhnnnyyy5797 7 жыл бұрын

Those chips seem to be similar to the two-transistor current sink circuit, 0.6V across the sense resistor is the typical base-emitter drop. Maybe those chips have some features, like overheat protection, otherwise, you can replace those with 2 transistor circuit.

@bigclivedotcom 7 жыл бұрын

I was doodling the two transistor circuit in my mind, and pondering how the thermal regulation would be implemented in the simplest way.

@mrjohhhnnnyyy5797 7 жыл бұрын

The one transistor circuit with 2 diodes in series which float the base 1.2V above 0V rail, has inherent thermal regulation if you thermally couple those diodes to the transistor. Transistor gets hot - base-emitter voltage drops, but since those diodes get hot too, their voltage drops too and ideally, it'll track each other and be stable. In reality, it doesn't track perfectly but it does work well for a simple circuit it is.

@mavos1211 6 жыл бұрын

Is there any way you could open up the HOPI and rotate the socket 90 degrees so you don’t need to use the death dapter?

@muh1h1 7 жыл бұрын

Wow, this video has just come out for patreons, and andrew is already sold out of quicktests as it seems :)

@ajmckeown 7 жыл бұрын

I have more on order with Cliff, a much much larger order this time but the ETA due to manufacturing lead times is looking to be early May for them. You can sign up to get a stock notification email on my website at www.nodedist.com

@muh1h1 7 жыл бұрын

Thank you very much, but beeing from germany i have no real need for those anways, i was just curious! :)

@Spiz103 7 жыл бұрын

Would it be possible to attach this to a traditional TRIAC dimmer and see if it actually dims? I imagine it would have a very small dynamic range.

@jfangio9260 5 жыл бұрын

I wonder if an old style looking Nixie tube could be made from these LEDs.

@uvman6648 7 жыл бұрын

Clive, you're making us all a bit nervous getting close to the 257 volts at 2:30...check out how close you were to the live filament with the giant calculator with the metal/aluminum chassis.

@ilzore4205 7 жыл бұрын

21:56 "just like the force"the best quote I've heard this weak amazing :)

@Nate1994a 7 жыл бұрын

Could you make a boost converter that can up The voltage to the 100 or 200 volts needed and make a bracelet? Run it off a few button cells?

@sunumra 4 жыл бұрын

Big Clive, can this be run on 12v? Many thanks for all you do.

@StephenHind 7 жыл бұрын

Why was there so little flicker when the LEDs would be lit for a small portion of the sine wave? Was the 2.2uF capacitor really giving enough smoothing?

@jamesvandamme7786 7 жыл бұрын

The limiter chip is cutting the current at the peak voltage, I'm guessing. If Clive had an oscilloscope, we'd find out. Or, if I had one of those lamps, and the time to do it.

@bigclivedotcom 7 жыл бұрын

The combination of the capacitor across the LEDs and the low filament current means that there is very little shimmer.

@StephenHind 7 жыл бұрын

bigclivedotcom thanks for the response: looks like a good technology but not so bright.

@czardestructo 7 жыл бұрын

Phosphor also has some 'momentum' to it, it's possibly the phosphor blended silicone they coat the filament with has so much phosphor that it continues to glow for a period after the current flow is zero.