Extra long LED filament lamp teardown.
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- čas přidán 1. 04. 2016
- Another new twist with LED filaments. This style is designed to emulate traditional retro filament lamps with a very long LED filament that emits a very golden light.
If you enjoy this channel you can help support it with a dollar at / bigclive - Věda a technologie
0:42 Lightsaber!
ICHTST!
Is that some sort of electrical current noise effecting the magnet in the iPad microphone?
@@xordinaryman8771 No smoothing which means the current is very choppy, the rapidly changing current is causing back EMF. Throwing a capacitor on it before the current limiting resistor would stop all the electronic noise.
sounds like a lightsaber when you bring it near the camera
That is probably how it was produced in the movie.
the fact that you print out screen shots is hilarious
Why?
think dummy
No, it's actually kinda useful because for some he annotates on them. He also might not want to destroy his computer with viruses from the "free" video editing software
Finally! someone who understands
Gives it an old school feel, like transparent sheet projectors. Anyone remember those?
Hi Clive. Just discovered your channel. As a retired electronics engineer it's great! Gets my little grey cells working again. Particularly like the autopsy videos, very informative and interesting. I'm learning new stuff too. Keep up the good work :-)
Although you're discussion of LEDs is way over my head, I do appreciate your scientific approach to understanding how these devices work. Keep up the good work on sorting the good from the bad.
Just a little reminder to Clive and everyone else: USA has not used 110V for decades. It's been standardized as nominal 120V for a very, very long time. It's not uncommon to see real-world line voltages of 127V, which is why many 120V cables and the like are rated for 125V.
in the netherlands we have 240 volt and 60 Hz
+Colin Vos Since when? I've never heard of any European country using 60Hz, and Europe harmonized to 230V ages ago.
+Antonio Tejada I don't really know. I am only watching this for entertainment and I don't know much about electronics. I see 220-240 ~ on the back of my ps3 and tv and other stuff.
And BTW I am dutch and only 15 years old so if my grammar is bad Imma sorry
+Colin Vos Your English is great! What you see on the back of devices are its minimum-maximum specifications. It doesn't mean your country necessarily is at those limits. :) As long as the 230V/50Hz power that comes out of your outlets fits within the specifications of the device, you're good!
+Antonio Tejada Thank you, so there can probably come 220 50hz out the outlets in Europa
Very nice looking bulbs these, I have a pic of an ancient London Tube train's interior with lamps that look like these, but of course they'd probably be carbon filament. After all they took the photo in 1903 ! Bought a couple of the 4 - watt lamps for my victorian home and the do look the part. Thanks for showing the innards, never would've thought they'd use strings of minute LEDs.
I bought one of these types of led bulbs, with a normal looking b22 and its been in the kitchen for a good 6 months or so and all good so far. Very bright.
+eraldorh they do seem to be a very reliable type of LED lamp.
Unrelated to subject, I'm beaming happy here to have found the exact same Clive style bit driver! Now I can break some stuff!
I got epilepsy in first minute of the video, that means its a good vid
That's because the driver doesn't do much besides convert the incoming AC power into pulsed DC
r/woosh
did you knovv that led filmennt is actualli is mini led in seris
I have a couple of these "vintage" LED lights with 6000K output, and I really like them. They give a beautiful light similar to daylight (not exactly, but close enough.)
Awesome Video Clive. Nice Teardown. Keep up the great work. Nick.
Wha... What happened?
The bulb went on and 9 minutes later came back from a flash induced epileptic seizure.
you should have added a smoothing cap when you put it back together
Just a suggestion or request for those who live with 110/120 volts... it would be really neat if you had a stepdown transformer to demonstrate what these lamps would do on lower voltage.
Nice work and thanks again.
I like how you changed the fitting.
Saw these in a pub last weekend! They actually look great
Just bought these for for my living room with a dimmer so warm and nice
That's a rather pleasant light, tempted to get some for my hallway now
Had a less than a year old candelabra style led string lamp like that ... It flickered notably for about 2 months.. stopped that, and then this last week decided to flicker again..then go rather dim on one of the 3 strings in the lamp. Aggravating.
Love you videos! keep them coming!
0:40 you discovered how to produce Star wars sword sound.
I do like the custard yellow colour on the filaments, it's a nice shade.
I am consistently impressed by these LED filament bulbs. Normally, China does not impress me, but this is a rare case where they've really come up with an innovative product that seems good, all around! They need to not cheap out on smoothing caps though. :P
I recently purchased 6 LED bulbs at a big box store you pay membership to (Sams Club), they were 10 pounds, they're about 800 lumens, and they draw 6 watts each. I didn't wait for them to warm up at all, the wattage may change, but for the price vs performance it's pretty impressive. LEDs are really coming into their own and I think they will easily surpass conventional halogen, tungsten, and CFL bulbs in short order.
Doug Reed there is Costco, but unfortunately I can go to abut 6 Sams Clubs within 20-40 minutes, and the closest Costco is over an hour away. My wife and I buy so little that the membership wasn't worth it actually and we didn't sign up again this year, we took one last trip before the membership expired and I found the LED bulbs.
Costco has said they will only put stores in decent neighborhoods, they at income and crime rates and decide where to put stores, so I'm sure there will never be one any closer to me lol. Sams Club however, they'll put a store anywhere they think volume is high. I fully agree though, if there was a Costco close to me I would consider a membership.
It's a good way to be safe on asbestos! Good job clive!
Amazing videos where you learn a lot.
One tenant of product teardown is to find out where everyone is. Helps to also tear down an earlier version to see where they have come from. Next step is to then work out what their next iteration is going to be Challenge after that is to then work out where to be next in front of where they are going to be next. But then that's the philosophy of an experienced Product Design Engineer - but no one in Australia would have the faintest clue what that was.
I don't know how I got here, but I enjoyed it regardless and the accent
I have one similar to this (narrower) in a bedside lamp, it's quite bright and nicely replaces the filament bulb. It would be interesting to see what difference adding the smoothing capacitor to the circuit would do.
YES! I just saw these in the store a couple days ago and thought they were neat looking! Was trying to figure out what to call them so I could ask someone about um.
Thing sounded like a lightsaber at 0:42 lol
Love that lamp
I can't believe you don't have a lightbulb type tin opener in your stock of magic tools Clive LoL!! great vid
Oh I bet these would be very good for video lighting!
I like how bulbs of the future look like old valves tbh xD god I'm such a retro freak
At the end of WW2 due to the shortage of housing many prefabricated bungalow styles were built in asbestos sheet. I lived in one for 15 years from birth and I am now 73 so cant be that bad., yes we had dust from drilling holes for screws and when I put my foot thru the kitchen ceiling :(
Clive, the circuit is fine. That's not a bridge rectifier, it's a Dark Sucker and it brings AC anti photons into the diode bridge, which are quite appropriately converted to AC mains and returned to the grid. Hence the bridge rectifier appearing 90 degrees out of phase in the paperwork.
Great video. What old is new again, but looking old. I guess I'll have to find or make a nice brass steampunk lamp fixture so I can use some of these cool bulbs. And stay tuned to bigclive to see all the latest cool bulb designs.
Light Saber noise!!!! awesome!
I paid a lot more than for a standard led to get bulbs this style for my kitchen fixture. All three bulbs in the fixture looked great at first but were dimmed significantly by the end of the year. I now have more standard Philips led bulbs now- less aesthetic but they work (I need a ladder to reach the bulbs).
0:42
My god, it's a lightsaber!
+Jesse Nope. SIX OF THEM! That's what those long things inside are!
In Japan (with 100V mains) you'd be bang on with a single filament.
Hey Clive I feel like it may interest you to know that the thing that causes that flicker is the mismatch between the frequency of the LEDs and the recording fps of the camera. In professional film either certain cameras are used or more often certain gas based and LED based lighting is used to defeat that issue.
After watching a bunch of his videos, I've noticed a fun pattern I'm very fond of:
I couldn't measure the power output, it's _minute_!
Wait, I *could* measure it...
Let's measure it!
Nice review of the filament LED lamp. I really like this style of lamp, looks neat whilst also being efficient.
How did you manage to convert it from E27 to B22?
You should go to your settings app, camera, tap “record video” on your iPad and change the video recording FPS, if it’s too high (60fps) you might want to change it to 30 or even 24fps to get rid of the flicker. This is because the camera is refreshing and capturing a the frames faster than the light is being emitted hence the flicker. :)
Liking that bridge wrongtifier!
The flicker would probably be intolerable for me, I'm very sensitive to it. Even then many people can detect it in there peripheral vision.
All people will see it when they move eyes.
I think maybe a spiral filaments could be a next step for these lamps. It might even fix the shadows issue you mentioned.
please put a cap in it :D pretty please
I love these new LED bulbs it is a nod to the original bulb filament just upgraded for LEDs that makes it so much cooler.
I want to get an original bulb filament one though and they sell them at my local craft store the sucky thing is they want $10.00 a piece for them so it is more for the history of it then anything else. :)
Well done! First some destructive opening and then nice reassembly with something more useful in your country. I wonder if they will ever make a hyperboloid arrangement of the filaments. Might be more useful than this simple design, with a smoother light output.
I have a pair of tubular ones that pull 2.4 watt each at about 350-400lm. The glass tube broke from the base but still functions and it's not under vacuum.
Hi there Clive , another great video mate. I nearly purchased one of this type of lamp as they are now available in 4 watt globes at my local hardware store i just wasn't sure how effective they are compared to other LED globes. Would adding a smoothing capacitor effect the brightness or the power use of this kind of lamp?
I can't believe that bridge rectifier is drawn wrong. Really confidence inspiring. I'll stick with GE.
Have some of those filaments too, beautifull, one has a smoothing capacitor using a ac voltage regulating capacitor, no flickering, the othe has a only a voltage ic circuitry which flickers
I think the same thing can be achieve with a LM317 variable linear regulator in constant current mode.
i really liked your professional lighting vids, when are you making more of them??
About the hum/interference. Here in Sweden there's been problems with huge (and badly shielded) LED-displays used in proximity to airports b/c interference with radio.
Thanks a lot.
After seeing this I've been hunting for this style of bulb for our hallway, which has a kind of lantern shade thing that these would suit. I'm amazed at how difficult it is to source these styles with a B22 fitting. I did buy an E27 bulb and convertor just to see how it went and discovered that the convertor wouldn't even fit into the pendant lamp holder. Also the bulb, when I found a lamp that would take the convertor to look at it, had a high-pitched whine that I hope isn't common. Now I may have to change the whole light fitting and wish I'd never started. Your fault, obviously.
Awesome.
It sounded like a light sabre when you got it near the ipad........LOL
@bigclivedotcom, does the inrush current limiting resistor do a good job ? I want to hook up some of these bulbs to a relay but Im not sure I need a NTC thermistor or the bulit-in resistor is enough.
Following on from my mini-moan about the lack of B22 fitting bulbs of this style. I recall in one video you talked about maybe attaching a bayonet cap to an E27 bulb that you liked. If you have worked out a reasonably easy/safe/economical way of doing that then I'd be interested to see a video on it.
The reason you get the flicker is because the iPad records using American NTSC video (29.97 or 59.94fps). In America, our grid is 60Hz, so the frame rate and the mains frequency are never out of phase. Since Europe uses 50Hz, you are out of phase with the iPad's camera. I don't know if it's possible to tell the iPad to record at 25/50 fps, but if it is, this problem will go away for you.
+Keith Gable Europe don't have single frequency or voltage. It's different in every country but it's in 220-240V 50/60Hz range.
+AdrianoCROST I wasn't aware that they used 60Hz anywhere. TIL. I know that the UK/Northern Ireland, where I presume bigclive is from, uses 50Hz. Tom Scott did a video on 60fps cameras with 50Hz mains if you want to look up the effect - it's jarring to say the least! :)
Very good..
Some people really notice mains flicker. I'm one of them, and some mains driven LEDs drive me mad. I always go for low voltage LED, with a proper psu.
Some PWM is noticeable to me too, but generally it's ok. At least we don't use CRTs any more.
+Stuart Johnson I hear you. I am very sensitive to PWM flicker, specifically the trail of dots effect when the light source or my eyes move quickly. Apparently this is called the "phantom array effect". (For me, 2KHz and higher eliminates it in most situations, though I've seen scientific calculations that say that about 15KHz is needed to eliminate the flicker in all situations.)
lol sure you do
If I wanted to remove the LEDs from the glass envelope and use them for another project, is there a specific method you're aware of to separate that sealant?
+Doogie Rick To retrieve the LED filaments you would probably need to use a hammer. They are actually sealed in the glass. But you can buy the shorter filaments loose on eBay if you search for LED COB filaments and select lowest price and shipping first. They do require a specific type of power supply though. If you search my channel for LED filament you will find various examples.
+bigclivedotcom Thanks for the reply. I had actually purchased about 60 of the regular ones from eBay and only about a dozen of them worked. I needed 42 working ones to build a clock. I figure the only real surefire way to get working ones is to buy the bulbs and scavenge the parts. I have been subbed to you for a while now and enjoy your videos. The extra long ones are all the better. Maybe I need to find a better supplier or something. Thanks and keep up the great work :-)
I know it would defeat the whole vintage look but I wonder if those LED filiments will come out with multi coloured LEDs in them, that could look interesting, especially in some of the fancier arrangements I've seen inside non-LED vintage style filament lamps.
There's a trendy pub in town has all vintage filament lighing but they don't seem to be LED & they keep violently exploding which would suggest they contain a gas.
Clive, I think the flickering on the iPad is due to the difference in refresh rate between England and America. As in 60hz, 50hz.
I scrounge blown lamps off people so I can re-use the BC caps to convert cheap ES ones as well.
I would like to see a heat dissipation comparison video of different lighting tech you own. I tried to do a research online but got really confused.
the goal being to swap bulbs for summer or winter, to save on cooling and heating.
I have 1 of these led bulbs - the flicker is dreadful! if we thought florescent bulb flicker was bad, then these led bulbs are even worse. I tried mine on a DC power source, no flicker. As efficient as these bulbs are, I still tend to like the real filament type bulbs... love the look of real warm glow... and no flicker!
Same here, man. Filaments can't be emulated by LEDs.
They can, but it takes some electronics in the base. I think for some shapes of LED "edison" bulb they could artfully work the circuitry into the bulb, perhaps in a transparent tube "tower" holding the filaments up, and nice silvery capacitors and the like. Cost of course goes considerably up, but your house also doesn't look like a Hellraiser movie and the migraines stop.
Right. Some of these bulbs have a small power supply built into the bulb. However, they're SMPS which tend to make RF hash. This is an ever increasing problem... www.leapfroglighting.com/led-lamps-interfering-with-radio-transmissions/
I actually got a 6W Filament LED bulb without any flickering. Got it from ebay seller maxkomfort, but through german ebay.
Right, I have 1 of those too. They have a tiny Ac-to-DC power supply in them; they don't flicker with AC line frequency.
Awesome video man. Just wondering, do you think it would be possible to manufacture a 3ft 1000w sodium light bulb or would that be impossible? Just thinking of a way to spread the light out a bit, a larger filament inside the bulb
You could reduce the effect of the iPad camera exaggerating the flicker by cutting down the light into it, perhaps by temporarily putting a neutral density filter in front of the lens (a sheet of grey transparent plastic might work). The camera will compensate for the lower light by keeping its electronic shutter open constantly, instead of being open for a short time per frame. In movie making this is known as increasing the Shutter Angle.
The dimmable E14 es LED filament are strange in a touch lamps .. they start off bright and go dim for every touch, whereas the old type of bulb started off dull and go bright with every touch .... My touch lamp is 20 years old I still have the original bulb from new, it's used every night for the last 20 years. ... It's lasted so long because I've only used on low .. I've heard these new type of E14 LED Filament don't last long .. thanks for posting .. :)
Internet: if it didn't exist we would be forced to invent it.
very interesting
I have also purchased 2 lamps, amazing performance
I'm gspannt how long will
many greetings Frank
Big vlive, these vides are great watching and Im learning a lot, what make is the power unit you plug into and measures the wattage and power in this video.
+bigclivedotcom Tip for your next teardown of one of those bulbs:
The "glue" used to fix the metal base to the glass bulb is rosin which gets soft when moderately heated.
Just rotate the metal base above the kitchen stove or use a small torch and you can simply pull it off.
+Ni5ei Many of the lamps I've taken apart were assembled with the same cement used in traditional tungsten lamps. Those ones were heat resistant.
+bigclivedotcom Yeah indeed. But I read it somewhere and tried it with an LED bulb looking the same as this one and it worked just like they said. Always worth trying before permanently ruining the base by cutting it up :)
answers.yahoo.com/question/index?qid=20081218045940AA0WBro
Just looked up the Yahoo answer and the weird thing is it was posted 7 years ago. Way before we had LED Edison bulbs... Perhaps it should be heated way higher than the temperature a classic bulb normally gets to when lit?
Hello Clive, could you tell me where you got the normal LED filaments on their own? I was searching ebay and banggood the other day and couldn't find any. only found cobs rated for 12V with a similar form, but not the 50-70V ones you built your lamps from.
Thanks in advance!
Hi Clive, which of these filament lamps does not implement any sort of PWM? Even though it's not visible by naked eye, just as cheap LCD screens, it strains eyes when the frequency is low. If possible, I want to avoid lamps with PWM altogether and rather rely on CC drive. Do you possibly have any recommendations?
In Hungary, at the OBI, it costs almost 1.50 euros
Quick question ... did this come from the PRC or Malaysia?
Cheers
The flicker comes from the iPad's frame rate, it records video in 30fps and the mains in UK is 50Hz - missmatch! Damn Apple for not allowing the user to choose 25/50fps instead of 30/60fps.
They make quality products, but they, as many others, has small fails.......
Les Paul We get it; You like Android. You’re not cool for hating Apple; You just look stupid
I wish these bulbs had full bridge rectifier. 50-60 Hz flick is easily noticeable. 100-120 Hz however is not noticeable.
+B. Winky They do, but the iPad exaggerates mains flicker greatly.
Have you thought about getting a dedicated camera that can filter 50/60 Hz light frequency?
+bigclivedotcom Did you try to put a smoothing cap while it was teared down, though?
+bigclivedotcom Is the flicker detectable at night when one of these bulbs is the only light source? I find it really disturbing when I wave my hand and it jumps around as if in a strobe light.
+bigclivedotcom I don't get it, why there is additional rectifier if you already have tons of diodes you could use to do the job?
This is when you can count on Clive to take the hand injuries for Hemophiliacs like me 😆
lol, when you get it close to the camera, it sounds like a bloody lightsaber.. VERY cool. EM leakage/interference?
The reason the iPad captures the flicker so well is because it's made by a US company who thereby makes the camera work best for 60Hz. Unless there is a hidden setting to change the anti-flicker from 60 to 50Hz, it's most likely stuck at 60Hz, thereby not working at all with the EU 50Hz mains.... :)
I would definitely see the flicker on that lamp - i'm quite sensitive to lamp flicker, can see the flicker in so many where most people just see solid light. 100Hz rectified with no smoothing might as well be a belisha beacon to me, Would drive me nuts!
+blower I know that feeling! I have a huge problem with plasma tv's, flicker like crazy, in the earlier years of crt it was bad, really bad. CRT monitors at 75Hz was absolute minimum I could stand. I could see it out of the corners of my fov but it was workable.
The new vented COG LED lamps (your other review) use a large piece of glass to spread out the heat for cooling by normal air. The tiny LED strips inside these sealed COG LED lamps have almost no surface area. Pressurized gas transfers heat with less temperature rise. Light gases like hydrogen, helium, methane, and nitrogen transfer heat better than air. Someone doing a teardown should breach the glass shell to find out which gas and what pressure these lamps contain.
Hi BC, I have been looking for some where to buy bayonet bases for a while now for a little project I'm trying but had no luck, do you have a source to buy these from or do you recycle old bulbs? Thanks Matt
Hi Clive, have you thought about replacing the neon power on indicator in your quick-test? Or am I just seeing flicker due to the spastic iPad refresh rate on its camera?
+BobEckert56 It's camera flicker.
bigclivedotcom Roger that.
That's a massive amount of flicker - there's no way that can't be clearly perceptible to the human eye, especially if you're particularly sensitive to it.
+themaritimeman The flicker of these LED filament lamps isn't directly perceptible in person. But if you look at your hand while moving it, you get the effect of a strobe lamp although to a lesser extent.
+themaritimeman Nope, that is the wonder of persistence of vision.
+Bigrignohio Came here to say this. You beat me to it.
the iPad records video at 60Hz, and the UK mains runs at 50Hz, therfore the lamp runs at 50Hz
modern mobile devices like Androids let you record at 50Hz with an option but Apple'd never have that
Because the sensor reads from top towards the bottom by one line at a time, it conflicts with the hertz.
Hey Bigclive, since you got the Zeron (?!?!) Zipper and you are such happy with it, i wanted to buy one too. But after searching about 10 minutes after Siron, Zeron (+/- Zipper) i was not able to find that. Could you please write me the name of it or a buying link? (Unfortunately i am not a nativ english speaker, what makes it hard for me to hear the correct spelling)...
+H4Z Xuron. An American brand. www.xuron.com/
Had minor seizure , still worth it 💯
Philips make them now too. quite a nice lamp
www.bunnings.com.au/philips-7-5w-a-shape-led-globe_p4340425
You know what they should do with this filaments.
LED Nixie tubes.
+ValugaTheLord mikeselectricstuff has already done that.
bigclivedotcom
awww... I though i was being a clever :(
+ValugaTheLord czcams.com/video/H_XiunR-cAQ/video.html
+bigclivedotcom
Nah, that doesn't count. What he did are just 7-segment digits (still nice though).
But there already are lamps with bent filaments. Search for "led filament refrigerator lamps". Pretty sure the way the filaments are used there is out of spec ;) , but it won't be long until someone builds, maybe not flexible, but still really bendy filaments.