Ebay $1.50 Filament LED lightbulb teardown (2W) 

don't ever quit uploading videos. u will go far

I am addicted to your video

I have several of these in the 4w variety, and they all seem to work so far. Good to know they actually draw the current they say they do.

Clear, concise, and informative. Two thumbs up and thank you!

They are COB LEDs. The factory probably has used old filament bulb machines and that’s why it is glass and has the old fashioned construction. I like these type of bulbs and I have changed almost all my home’s lights to LED. In this bulb there are no interferencies as there isn’t switching power supply and the construction is simple and cheap.

Where can I send you a pair of protective gloves Mr Diode? Great video thank you!

According to Big Clive, that type of lamp is filled with helium because it is the best gas for getting heat from the LEDs to the glass envelope.

I found that if you switch it on, unscrew it then retighten it again doesn’t flicker anymore

From the video it seems you're just guessing that the 1k resistor is on the secondary side, behind the rectifier. I would have guessed the same. But I agree with you that the other position is just as good for current limiting purposes, and better when also used as a fuse.

Thanks....that taught me heaps. Pity I'm so close to the grave, it would have been good to know this when I could have used it.

How you made that powermeter out of cheap multimeter?

I bought one of these lamps and it failed at something over 350V~ (I had a few fluorescent ballasts connected in series with the lamp - 3 paralleled 40W ballasts connected in series with the lamp in order to prevent damage to my variac if the lamp went short, so maybe the actual voltage across the lamp was a bit higher due to the ballasts forming an LC circuit with the capacitor inside the lamp), after a short period of time, the capacitor broke down and the LED strings burnt out.

thnx for this video. i learnt some very good ideas

Love this guy

Looks like a nice "belb".

Another little nice video

amazing stuff!

One end of the filaments is normally marked with a tiny hole. Is it plus or minus?

I bought six of them in lidl, livarno brand in other variant, (various shape of bulb) warm white but only 4W/E27 4filament, 2W/E14 2filament all of them because they don't have more watts that year. Light was poorly weak and all lightbulb go wrong in few month.

wish someone would open up one that is dimmable.

Can someone tell me what times 10 range means? Ive looked it up and couldn't find anything

great video

These bulbs are JAY ARES lights that last short

Thx for the teardown video. I do love these filamentary LED lamps. They have a great angular light distribution and simple circuitry. I read that the gas in the envelope is to dissipate the heat of the LED strip. Here is an excerpt from this US patent application. Gas cooled led lamp US 20130271972 A1 A thermic constituent in addition to the gas can also be included. In some embodiments, the gas is at a pressure of from about 0.5 to about 10 atmospheres. In some embodiments, the gas is at a pressure of from about 0.8 to about 1.2 atmospheres. In some embodiments, the gas is at a pressure of about 2 atmospheres or about 3 atmospheres. In some embodiments, the gas in the enclosure has a thermal conductivity of at least 60 mW/m-K. In some embodiments, the gas in the enclosure has a thermal conductivity of at least 150 mW/m-K. In some embodiments, the gas is or includes helium. In some embodiments, the gas is or includes helium and hydrogen. In some embodiments, the gas includes a chlorofluorocarbon, a hydrochlorofluorocarbon, difluoromethane, pentafluoroethane or a combination of these gasses.

how are you testing the wattage? where are you plugging in the MM

Wish they wouldn’t make the filament so long. They should make them short and in the center of the bulb, like traditional incandescent bulbs

good job

Yea I noticed that flicker the first time I got one, deal breaker.

Jak se ty "filamenty" zahřívají při jmenovitém proudu? Vždycky mě zajímalo, jak je u těhle LED vyřešeno chlazení. Ten kondenzátor je masakr. Nejsem si jistý, jestli vůbec existujou keramické SMD kondenzátory na síťové napětí, moc bych tomu nevěřil.

Who remembers the old Charles bronson movie where he is a hit man and he takes the glass off the light bulb and fills it with petrol or similar and then he screws the bulb back into the socket in the ceiling ! Hhmmmm boom it went ,when turned on! I forget the name of the movie ,but its Charles bronson

I had a problem with some similar bulbs, with the E27 socket. Someone called me to replace some bulbs, I would replace them and the surprise was that they had light intensity drops, from time to time. I told him the bulbs were to blame, they did not have enough filtering. Bulbs were bought from a local supplier and, as the owner said, they were not cheap at all.

From what I understand the Filaments are rated at 3 volts each, for a total of 6 volts for 2 pair. The 4 pair are rated at 12 volts total. I guess there is a step down transformer to bring it down to 6 volts.

Diode Gone Wild The capacitor is 400volts

I forgot it was an LED light until I saw the lines on the screen

i think it looks nicer than most led bulbs, closer to incandecent. Im supprised it is glass and sealed, cant see the point of the sealing :-/ Have you been watching BigClive ?, your diagram looks very similar to the way clive would draw it :-D. Just need a big beard now ha ha :-D

Why is it flickering

$1.5 for 1.5 watts

FULL BRIDGE RECTIFIER.

👍👍👍

Often is Helium or nitrogen in it

helium gas inside bulb to remove heat

LOL you`re kidding with the vacuum shit right ? It would be a nice add to a zero cooling system like this bulb , to completely eliminate the possibility of cooling those LEDs :)))

Yoo break him farkin'!

I am glad to know about you you are very professional on led lighting ,and LED downlighting is also one of your main products ,then may I ask do you import goods from china ?if yes ,then would you mind I sharing some of our popular products with you ?Actually ,we are a professional manufacturers specialized in LED lighting with 14experience ,maybe we would so sth for you ,do you have any interested ? Hope we can have a chance to cooperate well in the future .

If it was a little bit biger it will be 630v if it vas a little bit small it was it for 250v

It doesn't need headsink !

Also big problem is no heatsink at all so low life span.

Very low Price

How to burn your home? Just go plug with negatife and positive connected with no circuit breaker and get your hot wire into wood nearby your window

How old are you and where are you from? Italian American???

Make a intro for ur vids. It can be about exploding diodes because ur Chanel name is diodes gone wild

Hey diodegonewild can you be my friend please?

The 1k resistor has to be where it is because it's a voltage dropper

HELLO MY FRIEND J ATTEND TOUJOURS MES REPONSE A MES QUESTION THANK YOU

Kid asks his dad for hand lotion

Samsung and a few other brand made 5000mah 18650 batteries that are true and tested

He sounds more like a high school girl than an high school girl