Spiral LED filament lamp teardown. (With schematic.)
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- Опубликовано: 29 июл 2024
- 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 
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That glass shattering sound at 1:22 is so perfectly satisfying that it sounds like professional stock audio dubbed over the video.
Totally agree, listened to it over and over again :D
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.
bigclivedotcom Well that mic is just awesome! I thought someone is shattering some glass in reality.
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?
I could have sworn it was fake for a minute xD
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***.
seeing you break the lamp and it keep working unlike a tungsten that'd go up in a puff in smoke was so satisfying
the sound of that glass shattering was pretty baller
It has a Dark side and a Light side, just like the Force. Priceless. :-)
I love the sound of breaking glass 👍
Love the way access was gained.
Thanks for this earworm :) Nick Lowe: ruclips.net/video/JhvjTcPRYy4/видео.html
"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.
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.
When Clive flashed the transparent plug my heart fluttered!!!... I need that.
cpc.farnell.com/pro-elec/9518-13a-20-box/mains-plug-transparent-13a-fuse/dp/PL13961
oh Clive. they are so pretty. you spoil me.
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!
@3:52 "it's so floppaaay" that's what she said! 😂LOL
This honestly was probably the most fascinating video you've ever made! Thanks for it!
Love the printed blow-ups! Very effective.
He must spend a small fortune in ink, then again I think he uses refill kits based on a video from YEARS ago.
Dustin Sparks I believe he buys ink in bulk, as in 500ml at a time.
He uses a continuous ink system (very cheap, you fill the ink reservoirs from a bottle).
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!
It would be fun to get a hold of some of that type of filament and make you own custom bulbs!
I immediately thought of making a 'cock & balls' lightbulb... probably because I've just come back from Blackpool
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.
www.dhgate.com/wholesale/neon+rope+light+led.html here you go
+Nathan Dean : Amazing possibilities Nathan; can see these about to pop up everywhere at those prices.
I think those are a much dimmer style for accent, not illumination
That moment you brought out that huge calculator had me in absolute stitches. It's rediculous! :P
Stranger but I really look forward to these videos. Keep up the good work.
"Just like with the force" Made my day Clive :P
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.
The glass shattering sounded so comical! Hahah
This is the stuff of dreams! A incandescent looking bulb that's LED! That's cool.
Snagged one of the Quicktest things. Looking forward to blowing things up with it! :D
Join some filaments together and write your name in light!
Who else wants to see Clive drawing two hundred LEDs? Huh? Nobody? Life is brutal :(
abcd efgh hahahaha
Not enough, more LEDs! At least 420,Oh and dont forget RGB, he needs at least 420 rgb leds! MORH RGB! RGB IT ALLLLLLLLLLLLLLLLLLLLLLLLLLL
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.
#rgbeverything ;)
I came to the comments section just to mention that : )
a dark side and a light side just like the force hahahahaha you crack me up mr clive lol
You beat me to it. Or did you? ;-) My name is Lucas. :-) (No relation, but I do love Star Wars Movies).
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.
Can't you take the power meter apart and flip the socket 90 degrees? That would solve the problem i guess
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
"You see as I rotate this, it has a dark side and a light side like the force." ohhhh Clive! hahahaha
And duct tape!
Didn't expect the LEDs to be rubbery and floppy.
As Clive started hitting the glass I actually backed away from my PC screen!
this pink socket is... special!
That is one hell of a calculator you've got, Clive, *wow*!
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.
thumbs up . another great RE video...
"The Latching of the Triacs" sounds like a sci-fi novella.
I like when he makes schematics.
If I was an electrician I could have SO MUCH FUN with that rubbery filament!! XD
Yep, on big Clives videos there's rarely any going back when he opens a device to reverse engineer it.
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.
Always interesting
Illuminated writing comes to mind.
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!
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 :)
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
Impressive that the relatively small capacitor is doing a pretty good job not inducing flicker for most of the sine wave
One obvious application flexible filament is lettering. Names or initials will be appearing shortly.
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.
Make a safe kV battery powered source, tie more of them together and use as shoelace :D
ondra521 That would be too cool! If I can find the filaments by themselves i may try something like that!
Clive, I don't think your new calculator is big enough.
That glass shattering was so real it sounded fake
Big Clive for a Bedtime Story!
Could you get a bigger calculator?
Just like the force.
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?
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?
Brilliant vid, as always! The smashing of the glass was particularly satisfying.
nice video
Impressive. A MOV in an Ebay product.
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... :)
fascinating !
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.
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.
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.
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.
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?
Flexible filament... This could be the greatest invention since, I wanna say sliced bread but to stay on the subject, since LEDs.
To bad we cant use them with solar power. I dont think solar can power these
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.
You could make some pretty awesome rope light with that filiment!
the 2nd circuit with the load resistors also improves the power factor
I just want to know what the output voltage is of that curcuit is, im just curious if that filament is able to run of batteries like the led flame bulbs are
It operates at quite a high voltage. But they could theoretically make a parallel version that ran at 3V.
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
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..
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.
3:53 ITS SO FLOPPY
That's what she said! Sorry...couldn't resist.
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
Superb review 🎩🎓🗝🔌🔌
Is the temperature controls
!💡!
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.
I wounder where you could bulk buy the flexible LEDS. It looks like a much bright alternative to EL wire.
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.
Reminds me of the old GEC Osglim bulbs.
I noticed the extremely high power-factor for this item. Is it possible that a purpose of the left-hand I.C. is to draw current during the part of each line voltage cycle when the LED driving chip is NOT conducting, thereby filling in a complete in-phase current flow?
If you ever do draw 200 LEDs on the notepad, just speed the video up with Yakety Sax music in the background.
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.
Can you run it through body cavities and take xrays ?
I can see this technology being used for signage like gas station signs that use plastic cards for letters only the letters themselves would illuminate. Just laminate the filament in the shape of letters, then use magnets for the electrical connection. Like a modular neon sign.
The ( antique ? ) bulb shape is now very popular , and UK Poundland™ reproduce the original 60 Watt , 230 Volt Tungsten type for £2 ( ! ) , but recommend dimming them for very long life ( or 80 Volts for an everlasting 7 Watt night light , as discussed weeks ago ! ! ) ....... DAVE™ .........
I have a whole load of chinese LED 5w candle bulbs and some of them after a while start to flicker.
It is more common with the cheaper led bulbs.
Any ideas? is this something you have come across in the past?
from what I can see is the other part that you think is for Try-acks and di-acks is rong the other one provides a trim to make a square wave.?
Hi Clive. I have some 240v led globes with b22 (I think) bayonet fittings. They have a mock filament made of LEDs to make them look like old fashioned Edison bulbs. Is there any way I can run these directly off 12v?
Naughty Goat Farm
The only easy way is to use a step up converter to change the 12v DC to 230v AC. Otherwise the bulbs will likely just not work. You wouldn't need a particularly high powered one - something capable of running a laptop power supply should be sufficient - around 100 Watts, or less depending on how many bulbs you want to run.
+Naughty Goat Farm If it's the traditional straight LED filaments then they generally have a fairly high voltage requirement. It would require a voltage boost circuit.
Have you managed to find these without the bulb or in colors other than warm white?
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.
Is there any way to buy that LED filament in bulk? That's so cool!!!!!!
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.
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.
I don't think it could be bent too tightly without risking damaging the internal LED bonds.
richfiles I was thinking Big Nixie tubes.
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.
I think they are using Epistar LEDs. ES-EEDBF08H
Looking into the flex cob technique and where they are sourcing it.
If i wish to send you a doodad to disassemble, how would i go about that?
could those twin resistors (10k) be used to clamp the voltage at a set level when the leds are not conducting ?
BigCliveDotCom, does the light flicker ? should be flickering at 100hz
No flicker. That little capacitor and the low LED current creates very little ripple.
Which is impressive considering some of your more recent purchases... then again those driver-less LED assemblies were 10's of watts, not a measly 2.5(ish)
I just got a 12V filament lamp with G4 ending (just two wires) and it was 1CAD. It's a glass capsule with everything glued (it's a gooey silicony material) inside and what strike me as interesting is an inductor labeled 470. I don't think I've ever seen an inductor in led bulbs. What is it doing there?
+Hrnek Bezucha It's probably part of a boost or buck converter to drive the LEDs.
I wonder if an old style looking Nixie tube could be made from these LEDs.
Big Clive, can this be run on 12v?
Many thanks for all you do.