Next generation glass COB LED lamp MKII teardown.

[@robertvralph]

I love how you use actual printed paper instead of doing video overlays. I find it somehow endearing and yet absolutely appropriate.

[@cebruthius]

The film industry did/does rear projection. See Europa (1991) by Lars von Trier for a modern example.

[@WillyJunior]

Robert Ralph well video overlays don't exist in physical form so he would have nothing to point at

[@johnwattie1786]

*Clives pictures have recently improved considerably, so much I keep thinking he has a giant circuit board!!!*

[@AverageJoe2020]

I was just thinking that, the perspective is spot-on.

[@gloriouspopemantom373]

Very deceptive, felt like Clives hands had shrunk.

[@ThisIsARubbishName]

John Wattie "That big capacitor is HUGE what the hell!??? Did he make the circuit board with some bits laying around?" No, me it's a photo. I felt so silly when I figured it out.

[@AverageJoe2020]

ThisIsARubbishName You were not alone there!

[@schadenfreudebuddha]

I thought it was cause he was getting older and started using large-print components, like those giant-buttoned old people phones.

[@nio7007]

I bought 20 of those about 5 months ago for my garden lights and I have to say I'm pretty happy with them as they have this 360o glow, anyone who sees them thinks I have conventional bulbs installed. Thank you for this teardown! :)

[@Bigrignohio]

It's the weekend, I have been up all night and it is almost 6AM, and here I am watching Clive's latest video. I need to pop into work today for a few hours to boot. Monday is going to suck.

[@mrclucker1969]

LEB bulb technology is really starting to move - which is brilliant because we get to watch you make more videos taking them apart!

[@stridermt2k]

Clive you are awesome. I have so many more lighting gizmos and projects because of you. Thanks dude!

[@fuzzlabrador]

the square ones work quite nice, I have them all over the house. nice to see them evolve.

[@wavecreatures]

Sunday morning is now brighter, thanks Clive!

[@dustysparks]

That's really nifty :) I can think of all kinds of crafty ways to use those disks in artsy lighting installations in restrooms and other public spaces, where you would suspend a larger glass or translucent material like acrylic and a smattering of those "pucks", and then the wiring for them would snake back to the hanging points, and the driving circuitry would be out of site. It would provide an interesting feature of light in a very thin package that would splash down AND up, and if the little pucks were sealed into the material, it would be about as safe as any other fluorescent lamp. I could also see these used as like oversized "pixels" or a very large dot matrix display (think freeway information signs or traffic control units with the big amber arrows).

[@nathanpc]

Really interesting lamp, I hope we keep getting more and more of these next generation designs. Also loved to see that you got a new calculator haha

[@teacfan1080]

I can imagine all these LED manufacturers watch your videos and think how they can make their products harder for you to take to bits! You really had to use effort to get into that one!

[@slawor4]

"It will be optimized for your search history" I get the guiness surger. What have i done wrong

[@boggisthecat]

That Guy Not watched sufficient cat videos. 😺

[@spengu64]

I got it too, even though I just watched it yesterday, I think KZbin needs to improve their algorithm. (Techinally it's based on my history, that damn video is in there)

[@ChrisD4335]

so everyone got the guiness surger and big clive jus BSin right?

[@DjResR]

Me too. Interesting._

[@SpriteXP]

I got the Guiness video too but I already watched it yesterday.

[@fish4fun354]

Anyone else fascinated with LED lighting? Always looking to buy LED products of everything.

[@QCpowarr]

My dad is one of them.. but I have lights in my keyboard so I can't give him shit about it too much.

[@jusb1066]

i was amazed when cfl came out, quickly replaced all the old hot 100w bulbs, and a few years later they subsidised the heck out of them, 10p per bulb so i bought a fair few of them, havent run out, so only a few newer lamps i use led still, for the toilet hall etc they are all cfl and will probably be so for many years to come due to spares

[@NoahNobody]

Yep, I'm into indoor horticulture so I'm experimenting with all kinds of led types and light spectrum. The stuff from China makes it a very affordable hobby.

[@jamesvandamme7786]

I still have 20 year old fluorescents. And incandescents in the closets that burn 1 hour a year.

[@fish4fun354]

I'm always getting flashlights or light bars that are LED for when I go fishing at night.

[@1marcelfilms]

When you position that printed circuit just right it looks like a giant circuit board with big components

[@johannes4868]

He did that, so the calculator wasn't *that* big :-)

[@paulgascoigne5343]

‍1marcelfilms the charge in that capacitor can power a house for 24 hours

[@welshnutterz]

iv been running these for around 6 months now and i would say there probably my favourite of all, they are very bright, warmer than the first version of the cob on glass type light. the first ones i got were 10w but i found them to be too bright for average room so second batch i brought in 8w which is still bright, but about right. good bulbs

[@MusicalBox]

I usually give the thumb up at the end of the video but I made an exception this time and gave it as soon as I saw the BIG calculator :D

[@benjaminvalentin8741]

If your are curious where to find that lamp on Aliexpress, MCOB is the keyword you are looking for.

[@tuxnews2878]

Nothing appear searching that

[@pileggitech]

Good work as always. And I like the end card elements, I've been using them on my channel for a while now. The algorithm for the recommended video seems to show what your most popular video (in recent times) is.

[@GoScada]

Electronics lessons from Thing T. Thing and his cousin :) Brilliant work! Nice to see how designs evolve over time.

[@audiocrush]

It recommended me the guinness surger video :D Maybe because I spent the last week watching every single video of yours. Like the old stuff a lot :) keep it up :)

[@paranoiia8]

"where is big calculator?" damn that thing is hard to find xD

[@jeremymartin6563]

Hey, I love your method for explaining circuits, I would really love if you could make more teardown videos and explain the thought process for their circuits!!

[@letrions]

I enjoyed the awkwardness of the promo at the end almost as much as the lamp teardown.

[@bigclivedotcom]

i didn't realise the end-card function is capped to 20 seconds, which is why I had to crop the end off and it ended suddenly. KZbin seems to be pushing for the inclusion of this card at the end of videos now. I'll either have to leave a quiet space or make a dedicated blank section of video with low level music or something.

[@letrions]

bigclivedotcom it made me chuckle as the way you produce videos is all about the content, so the 'special effects' and you gesturing to the areas for the links created a humourous dissonance. to clarify: I enjoyed it. do what you need to do to satisfy the overlords, I would encourage whatever approach gives you time to focus on what you (and by extension, we) love.

[@charliedobbie8916]

+bigclivedotcom I find it really annoying when it pops up over the top of content, especially where people have been wedging it in on old videos - so I really appreciate you reserving a section of the video solely for it, and I hope you'll continue to do that in the future! You may need to come up with a 20-second outro spiel! :-)

[@chrisfeltner]

Clive sings lol

[@rupertrooksby]

Of course there is the other third, special, secret, option ... which is to ignore whatever current marketing wank youtube sends to hard-working creators and just make nice videos without all this latest annotation nonsense cluttering up the end. They used to tell you guys people preferred short videos (when they were trying to sell more ads), then they told you people wanted longer videos (when they were trying to become subscription model), now they tell you to put their useless suggestion algorithm at the end because they want to steer audiences to what they think we want (have you looked at the shit in trending?) If I was you I'd just tell them to bugger off. Just concentrate on the lovely high quality videos.

[@cncdaddio]

I have exactly the same style lamp but mine has a plastic disc, not glass (... tooth test). 8Watt - 22 LEDs. The circuitry is the same except that mine uses a 0603 resistor to set the current. (Two 0603 paralleled on top of each other.) The disc gets toasty hot, up to 95dCel

[@jetjazz05]

OWWW. That cut on the end of your thumb looks like the absolute ultimate rule breaking of "dont pry using a screwdriver with it pointed at your fingers". I do more mechanical (car or small engine repair) work than I do electrical work, so prying things with a pry bar or screwdriver is fairly common when reconditioning parts, and I've learned the hard way not to pry TOWARDS my fingers when holding something: even a dull blade can go in deep if you're prying hard enough.

[@diamaunt2782]

it was a utility knife, earlier video, we were spared the actual gore.

[@pdrg]

Hunch from a former manufacturing engineer - I suspect the raised phosphor lines on the front are so the same die can be used to print the front and back glasses, and allow for the power lines to the pads. Hard to tell for sure without opening one, but it would make sense on a commodity item to reduce the amount of printing and inventory by making two identical layers

[@thehappylittlefoxakabenji8154]

Hi Clive. that's a nice calculator I bought one years ago like that it won't fit in your shirt pocket though ! I got mine because calculators were getting smaller and you needed a pencil to press the keys !

[@Martin-uf4ut]

nice new calculator Clive!

[@TheFlacker99]

It's so much easier to follow along with a schematic AND a picture of the circuit you're talking about. Thanks.

[@Mjoll87]

Aliexpress has a few of them, Alibaba is quite flooded. I've bought a few of these bulbs from an Italian retailer on eBay, with power ratings of 6-8-10W. The model Clive tore apart is the 10W model, 8 and 6W are very similar and a lot cheaper. I got a failed lamp with a broken wire between led and board, and went straight into take apart mode... The dome is quite well glued and doesn't want to come off easily, but once that's done, if you cut between plastic and glass with a scalpel, the glass disk will come out easily enough. That bulb has now been assembled back again and works well. For 3.5€, I cannot say those bulbs are half bad. As others mentioned, the magic word to search for these is "mcob".

[@han_pritcher]

These COB lights are really impressive. I wonder if something like that will end up in a flashlight? The linear-type COBs seem less suited for that purpose.

[@Madness832]

I'd like to find one of those lamps w/ the square array & mesh envelope -- those look quite cool.

[@jakp8777]

It will be interesting to see if there will be a final universal design for led lamps that everyone uses like with incandescent lamps.

[@jusb1066]

yes the trend for led lamps is doing away with the univeral fitting and the entire lamp will be a unit, look at say the round led bathroom IP lamps, on the outside its the same as the cfl design but inside the leds are part of it. they can be made more compact and in some more unusual designs if they dont have to think about backward compatability, plus easier to fit universal drivers so the entire world can have one production run

[@EnricoConca]

I bought quite a few of the old style warm white lamps, but it looks like the manufacturer has recently discontinued the warm white version. Bummer. Hope that these new lamps become available reasonably soon.

[@BrokebackBob]

That calculator is great, very sharp display, use that one when needed please.

[@fabriziobrutti1205]

Actually, I'm quite surprised that now, 5 years later, I've never seen one of these. They look of a pretty good quality, and imo they have a nice design too. (I'm in Italy, idk about other countries)

[@AliMirjamali]

Illuminated single-pole wall light switches, containing a halogen bulb in series with main bulb are common in my part of world. I guess the 470k resistor is to prevent the bulb to blink on those switches (as you suggested). That is a clever tweak. I see a scratch on your left thumb and sticking plaster on yoru right hand. Maybe it would be better to use a Dremel type tool instead of knives and some protective gloves. Thank you very much for the videos.

[@ItsJustJoeC]

I burst out laughing when you brought out your calculator. I actually scared my dogs into a full on barking fit. Also, I got the guinness surger video as well.

[@toasty4000000]

Woah that printed printed circuit board threw me off for a sec, I like it :p

[@iluvtocnc]

Quite a bit of of stuff in a small package. Here's a quick translation of what's listed under "Features" in your Chinese data sheet: SOT23-3 package (ok this didn't need translation) Internal integrated 500V power transistor Integrated high voltage supply Inductor critical conduction mode Does not require auxiliary winding monitoring or power supply Wide input voltage range +/- 5% LED current accuracy LED short circuit protection IC under voltage protection IC over temperature adjustment (I expected over temp protection but it says "adjustment")

[@markukblackmore]

This form factor might be used to make a fitting that attaches to a regular ceiling point and has flat arms extending out with what might appear to be downlighters along its length but the downlighters wouldn't need all that drilling through the ceiling and extra wiring expense?

[@mrtemple728]

Loved the picture Clive great touch haha

[@ELECTROHAXZ]

That picture on the PCB looked real, it looked like you had a PCB with huge components. (P.S. someone needs to make one!)

[@BillyNoMates1974]

wow. the calculator of doom. its huge

[@d0d0uk]

good name, matches the vice of knowledge.

[@BillyNoMates1974]

I try to excel at failing

[@nedloh17]

does that make you egregious ??

[@BillyNoMates1974]

my luck is If I brought a lottery ticket, id owe them a million pounds

[@MarkGarth]

The size had me laughing, as did his comment about seeing the display :-)

[@bent540]

the enlarged pictures of the circuit!! hahah I LOVE IT!!

[@iiizzak]

clive if you wish to use the lightbulb guts. you can use the diy bulb to try to fit the guts of the cool lamp

[@amorphuc]

Mad Max light - Absolutely. I couldn't help but think that this has to be the most unusual "bulb" I've seen. It would be fun to make a wall panels of these, perhaps on shower door glass with foil tape conductors or something. Could you dim a bunch of these with some sort of PWM supply?

[@paulgascoigne5343]

there should be a competition for guessing Clives hand injuries

[@schadenfreudebuddha]

i'm gonna take a big payout longshot....frostbite from a supercooled guiness surger mishap.

[@misfitthemad276]

Thanks Clive. It seems they're being called "MCOB" so if anyone's looking for them just search for that.

[@vgamesx1]

Thanks.

[@dosgos]

"upgraded" calculator. I quite like the method of describing circuits with some big photos, some spec sheets, clear paper and the simple calcs via the new confuser...

[@StuartDWright]

Clive do you think you could get John G to share a link to the source of this circular LED lamp for you to add to the description, please? Many thanks

[@olafmuller4506]

cool video as always, Clive. thank you so much, take care, bye! 🐞

[@gaellafond6367]

6:05 "Oh well... That's not going back together any time soon" - I saw that one coming :P

[@spectrHz]

Surely this would be CoG (chip-on-glass) as is used in lcd modules?

[@28YorkshireRose12]

That was very interesting, and having seen the other "new generation" of LED lamps video, I can see this 'newer' version with its laminated design addresses one of my comments on the previous lamp, which is the mitigation of uv artefacts. With glass on both sides of the active elements, uv light is effectively blocked, so no stray artefacts to damage the plastic shell, nor to harm us, or anyone/anything else. I am wondering just where the development of LED lighting will eventually lead us. Incandescent lamps have been virtually unchanged since the first tungsten filaments, so that's over 100 years. We had a brief flirtation with CFL for about a decade or so, and saw very little change during their lifetime, and now LED lamps, which conversely, have gone in leaps and bounds, with a plethora of different approaches, types and variations on a theme, but will we ever see large scale single light emitting elements that can output similar lumen values to those from either, say, 100W tungten, or 10W (assumed) LED array? Or are we heading towards something like an electro-luminescent fluid filled tube/bulb (OLED, maybe?). Where will the quest take us?

[@bluephreakr]

had you tried stuffing the driver and panel in a DIY enclosure? Seems like you can salvage the light itself since it works, just shove the glass into it and save the other light stuff for your parts bin.

[@Burgattti]

Ordered some Philips GU10 MVMaster Spots To replace my room of 12W Cob reflectors They were really good price And upon closer inspection they were M-COB being only 4.3W each they were just as bright!

[@diamaunt2782]

clive, a big bear like you doesn't need to compensate for anything with such a showy huge calculator ;)

[@email2oak]

I couldn't stop laughing the when the big calculator came out. It looks like a six year old trying to use a normal sized one.

[@jason-ge5nr]

Oh right, where is my large calculator. Up slides a *huge* calculator. Too funny

[@andreim841]

Actually these types of bulbs have been around for about a year now. Good luck getting more than 4 months of use out of them without the plastic cracking. They might do the job if you use them in a fixture where they are not on for prolonged periods of time.

[@papastauth]

I am sure you are not intending too, but you are HILARIOUS!

[@UKProg]

Hi Clive. Does this style of lamp generate much heat?

[@bigclivedotcom]

Not excessively so as its design facilitates good airflow.

[@UKProg]

bigclivedotcom Thanks, that's good to know.

[@paulgascoigne5343]

bigclivedotcom especially with the customised 'vents'

[@jusb1066]

probably the best thermal design ive seen, and a 10w led is pretty decent too

[@maicod]

+Paul Gascoigne Clive thought it had too little of those and made a few more ;-)

[@proyectosledar]

hi clive. i like it!!

[@DavidAlanGilbert]

It looks like they're slowly getting more advanced manufacturing into these bulbs; most of the current ones with SMT LED chips are just pretty basic - this actually looks like it's pretty novel and must have required some proper design. I wonder who makes the LED modules.

[@irishgtxx]

nice electrical customisation video as usual thanks Clive! what's your thoughts on the long term reliability of the power supply, do you think it will last the life of the led? and what is this generation of led called?

[@SlyPearTree]

You can put the lamp together, it just needs a few adhesive bandages.

[@pierreuntel1970]

SlyPearTree duct tape can fix everything

[@joinedupjon]

Liked the futuristic 'cage' design of the earlier bulb - practically it'd probably fill up with dust and dead spiders in 6 months but you could see the funky glass bit - the diffuse shell on this one hides the interesting bits.

[@DualorProductions]

Old Clive getting on the technology with PiP, a and subscriber buttons, watch he'll be in 3D ;)

[@forevercomputing]

The recommended video to me was the last one of yours I watched. The Guinness Surger...

[@ekner]

I find with recommended "optimized" videos I mostly just get to watch the same genre of stuff from the same people. I wish it would mix things up more, be a bit more geared towards a "here's something you've never seen before but you'll click it anyway because it looks really good, because that's what youtube is all about" sort of approach...

[@mc_cpu]

Those blow up circuit board photos are very effective. almost look 3d.

[@theatheisthammer]

Hi smallclive i can say that because im nearly 7ft tall. anyway another great video. i have found a better way for divorcing glued objects if you slightly warm the area with a hairdryer it usually makes the job easier. keep up the good work.

[@63ch31]

The Atheist Hammer Being tall doesn't make you big😏

[@harrickvharrick3957]

with led units layered inside that glass they probably are tuned to less brightness (and hence consumption) as they might not experience a great possibility for heat dissipation?

[@tomhsia4354]

Wow, this and the mk1 are pretty impressive! So much so that I wanna buy these as replacements. I Wonder what brand these are? Seem pretty original.

[@mossy1259]

Hi Clive, please can you do a video on transistors? Thanks, Dai

[@Mark.D.H.]

I've got several of the older plastic bulbs and am really pleased with them, no flicker and a bright warm light. No longer available in warm white on Aliexpress though! I guess these newer ones are a bit brighter? Can you post a link up for the seller?

[@АндрейСитников-к5к]

Mark I bought each lamps, 10w this one MCOB, and previous that Clive tested (12w, that actually 6w), so new one less bright than old. I think it is becouse it's a solid cover in new. I tested it by luxmeter, it's similar to 75-80 tungsten, imo. Sorry for my bad English. CE s.aliexpress.com/F3QniMrE (from AliExpress Android)

[@Mark.D.H.]

Андрей Ситников Thanks for the reply!

[@douro20]

Around here the one with the square glass panel is sold in multi-packs.

[@vonries]

I bought a big box of those bulbs with the square glass here in the USA. They burn out like crazy. Our ceiling fan runs through them like M&M's. Don't worry I missed your video saying how great they were, so I don't blame you. I just wanted you to know. They must not be meant for 115V @ 60Mhz.

[@twocvbloke]

Interesting design, definitely seems to be a better update on the filament designs (most of my LED filaments I bought last year are dead, damaged or squealing like bastards, only the Blue one and the "lantern" one are behaving!), I just haven't felt the need to buy more LED bulbs just yet... :) And I've yet to use the youtube cards things at the ends of videos, either in my own vids or clicking on them, just another feature that breaks youtube now and then...

[@Martinsp16]

Hi Clive, what iPad are you using exactly? :D very interesting teardown indeed! Thank you!

[@JTLowry]

I've gotten quite a few of the MK I they're super light weight

[@Skawo]

What's that, a calculator for ants? Giant, space-dwelling nuclear ants?

[@paulgascoigne5343]

Skawo as the calculator gets bigger, Clives voice becomes higher pitched.. "help meee"

[@richbooth8948]

Skawo It's not the size of the calculator, it's the way you use it that counts!

[@paulgascoigne5343]

You summed it up nicely there 😉

[@IncertusetNescio]

Looking back on the glass sandwich lamp from 2019/20, the square-glass LED layout, and the filament-style one I have to wonder what the hell they were on that week to think up the sandwich and what they started out on with the square one before that. It can't have been that cheap or easy to make for a start and for a second bit it can't have conducted 9-10w of heat that well either no matter how much air you gave it. They must have figured leave the larger sized bulbs to the COB panels glued/compounded down to air/edge-casing/full heatsink (depending on quality of lamp maker) and put the filaments into bulbs that it both look nicer in and fit better like candelabra-sized ones (though power miniaturization of it couldn't have been easy unless they did a 3-pin buck regulator or similar). Really weird transition time for LED bulbs for sure.

[@siayourcannaguy6106]

i think they put the glass over the phosphor because they know gardeners take the domes off for propagation trays and dont want people zapping themselvs. some of the osram ones we get here at Canadian tire have the same thing going on.

[@joshuabest100]

might buy myself a few of these and just take the caps off i like the look of the yellow fosfer glass

[@theskett]

@@voltare2amstereo Probably the same way that yellow Post-It notes do :-)

[@frab88]

What about flicker? I have a lot of led lamps with tremendous amount of 100Hz flicker for example. Would be nice if you could hook up to a scope, the analog output of a high-speed, light-to-voltage sensor like the TSL257.

[@andys3532]

# Bigclive. I've been waiting for this review for a while. Would like to see this in a slatted bulb like the first of the "Next Generation". will have to get one and see whether they can be modified. Keep up the good work! Did you get info on the supplier?

[@cebruthius]

Does the disc get very hot? It seems to have quite a small thermal mass for 10 watts.

[@noisemaker1696]

That big calculator made my day.

[@lorenhusky2717]

That's actually a really nice lamp. I like that a lot. It's kind of a shame they put that thick frosted plastic dome on it though. I'm sure that hinders it's light output potential a bit.

[@IDoNotLikeHandlesOnYT]

You should mod that calculator so the screen tilts back a bit more. It would make it more visible on the camera, I think.

[@brettjohnson6807]

Most things tend to be completely customizable with a set of snips I have found, whether they keep working or not is the real problem. ;-)

[@HattmannenNilsson]

Excellent video as always, but I found it a bit hard to see the numbers on the new calculator. The display is a bit on the small side when not watching the video in full screen. Perhaps you can keep a lookout for a larger one in the pound shops you frequent. ;-)

[@russellhltn1396]

Clive, you might try Google Translate on the spec sheet. It can work though the phone's camera.

[@splibb]

love the mad max reference!

[@Gooberslot]

Is there any advantage to these over more traditional led bulbs?

[@kensmith5694]

I think I can shed some light on how the chip actually works. The data sheet's drawing is a bit misleading. Notice that the chip lives with its "ground" at the top end of the current sense resistor. Notice that the Vcc capacitor goes to the lower end of the current sense. When the MOSFET is on, the Drain connection is shorted to the CS connection by it. This means they can't be charging the Vcc capacitor when the MOSFET is on. Also since the capacitor goes to the bottom side of the current sense resistor, the voltage the chip sees as Vcc will ramp down as the current ramps up. Thus by watching the Vcc, they get a good signal to use for when to switch off the MOSFET. When the MOSFET is off, they charge up the Vcc capacitor to some regulated voltage. They may have gotten clever and do this with a delay so that the regulator making Vcc is still off while the voltage is Mains+75V and it only charges when the energy is out of the inductor. I base this on a "if I was doing it" line of reasoning and the fact there are only 3 pins.

[@dave_n8pu]

I noticed no flicker of the video from the light, did you get a different 'camera' to record with?

[@dutch3y]

This is interesting timing, actually. I have looking for high-output LED's and started researching COB's. Is there any advantages to high-output COB LED's over SMD's?