The cheap Chinese bulb that won't turn off

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These LED bulbs will continue to draw power from the mains indefinitely even once they're switched off and the circuit is broken. But how?!
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Commenti

  • Tom Van Alst
    Tom Van Alst

    You are wrong about the infinite lighting of bulb due to capacitive state of wiring when switch is off because some voltage potential charge remains until dissipated based on the following. What you demonstrated is mutual inductance (or Eddy currents) because the switch is not breaking the hot side ahead of the circuit/wiring/drain device, thus causing a parallel circuit for voltage to flow. This is a classic example of a novice, homeowner rewiring an outlet or switch. BIG CODE Violation and very dangerous. Switch needs to be the the first connection (closest to source) in a series circuit and not run parallel to switched wiring/controlled device or not in the middle. Otherwise the circuit is always hot when switch is off. IE: volt meter will read about half of source voltage when switch is off. Another reason for having a good ground separate from neutral so you kill yourself.

    2 minuti fa
  • Pieter Brakenhoff
    Pieter Brakenhoff

    That's why you want your switches to turn off the live wire and not the ground.

    4 ore fa
  • SMalcolmB
    SMalcolmB

    I used to think water was compressible and that is how super soakers and pressure washers work? I now realise that they compress air. Water still is compressible though, even though it's not very compressible. Think of deep sea diving and the like.

    4 ore fa
  • buzzz kill
    buzzz kill

    Definitely one of the most embarrassing humans ever encountered on you tube.

    5 ore fa
  • Bob Steenson
    Bob Steenson

    Playing with water and high voltage = opportunity for disaster 😨😵😨😵

    10 ore fa
  • Kenneth Ng
    Kenneth Ng

    I love Electroboom

    12 ore fa
  • Mike Earussi
    Mike Earussi

    More web BS. You obviously don't know much about electricity. Capacitors don't create electricity, they just store it. What's happening is electricity is being induced in the long coil of wire from the electromagnetic waves emanating from the house wiring. If you attached a voltmeter across the wire you'd see that.

    16 ore fa
  • jeff pepin
    jeff pepin

    remove ground from socket tht use this light ,., by switching light off ,, you just kill half voltage and 65V keep circulating in led circuit , lol

    18 ore fa
  • Halcyon Outlander
    Halcyon Outlander

    I see this with led bulbs connected to motion senors.

    20 ore fa
  • Stephen Schuster
    Stephen Schuster

    wait so they will eventually turn off

    21 ora fa
  • Patrick Freeman
    Patrick Freeman

    What is this dumbass talking about

    21 ora fa
  • Chris Sanders
    Chris Sanders

    It's not acting like a capacitor. It's just induction.

    22 ore fa
  • Jboycs
    Jboycs

    Edison... Did he invent or discover anything that he didn't buy or steal from others?

    23 ore fa
  • werner vanham
    werner vanham

    Take a neon tube ,once it shines take away the starter ...the tube will continue to give light for a very long time without consuming any electricity…(nb the gas in the tube continues to glow)

    23 ore fa
  • Brady Carpenter
    Brady Carpenter

    Another way for the electric company to screw people over with a smart meter and new light bulbs coming our way?🤔

    Giorno fa
  • hugh crawford
    hugh crawford

    I wish you had a link for how to buy these LED bulbs. I can think of some interesting uses where the circuitry in the more expensive bulbs interferes. Thanks for pointing out why the water in plumbing metaphor is so bad when talking about inductive circuits. I thought “oh no, he’s using the water metaphor” then I realized “oh good he’s talking about why the water metaphor sucks” congratulations thank you thank you thank you A shot of unplugging everything from the mains for safety when handling all of the components would be a good idea.

    Giorno fa
  • Chrome Chronotic
    Chrome Chronotic

    lots of wires, lots of power, a big syringe full of water and some red dish washing gloves. Got it! BRB.

    Giorno fa
  • Sedokun
    Sedokun

    4:30 Playing with water over the outlet of extension cord...

    Giorno fa
  • Teslas Apple
    Teslas Apple

    Electrons? Lol

    Giorno fa
  • Five Star
    Five Star

    Inductance

    Giorno fa
  • Paavo Bergmann
    Paavo Bergmann

    Hmm..interesting. Vid looks pretty dangerous, though.. ;-) One thing, about the different amounts of electronics in cheap vs. expensive LED bulbs. I only know this from battery-driven, DC-operated LED torches, but I wonder if it has something to do with the phenomenon: I once tried to build an LED torch myself and had to realize that LEDs and ordinary bulbs work very differently: Bulbs have a high resistance, so if you apply voltage, a current results, resistance leads to difference between in and out, bulb heats up until it glows. So you install them by regulating the correct voltage. LEDs are more tricky. They have really low resistance while they are running, if the voltage is higher than a threshold. So you have to control the current flowing through the LED with an external resistor greater than the LED itself, otherwise the LED lets more and more current flow, gets very bright, heats up, and burns out really fast. One solution: Drive them in pulse mode, with current applied only for a fraction of the time at high frequency, e.g. 15% on, 85% off so it can cool down during the off-time. Your eye, because perception is slow, merges the flashes to seemingly continous, bright light. If the frequency is too close to the eyes temporal resolution, you might just notice. i thnk this is why many LEDs seem less bright than they appear, and why many LEDs drive ppl crazy, especially if you move relative to them. Second solution: Carefully design the wiring pattern of LED´s in parallel and in line, with matching resistors, so that each LED gets a resistor that ensures a correct current flow. Usually that means, only a few LEDs in line with a resistor, and many of these assemblies in parallel. Ideally, one resistor per LED, but there is a limit of how precise resistors are, so you´d get different resistances among your parallel assemblies, which also leads to problems. Cheap LED torches usually use the internal resistance of the battery as resistor, which is not really precise, so they tend to burn out quickly. Obviously, both methods involve a lot more elctronic components than bulbs, and for the resistors, they leech a lot of power that you don´t get any light from. I wonder if that has anything to to with what we see here. I wonder if the cheap LEDs that can continously glow on broken lines, utilise some "quick-and dirty"-cheapo electronics, and use some average features of a normal wiring instead for their function. I wonder if they, thus, work perfectly well in chinese installations, but not in europe, because our systems are wired differently. And I wonder if they a) get warmer than expensive ones, and/or b) don´t last as long. Any ideas?

    Giorno fa
  • Jonathan Tatler
    Jonathan Tatler

    I've seen much better explanations of how capacitance works!

    Giorno fa
  • TheViperZed
    TheViperZed

    Uhm it's 50 meters of cable used as 100m of wire, in a coil, it's going to be a significant increase in resistance, and potentially an induction coil, if you leave the black and red wire connected at the end of the cable. From the perspective of someone working with electronics, you changed the circuit diagram there. And yeah later it's a capacitor, it's a good idea to know the physics behind electricity, even if you're "just" laying cable.

    Giorno fa
  • Nick Peaden
    Nick Peaden

    As in costing you money at less than 10 pence a year. The LEDs are running at a minuscule fraction of their wattage.

    Giorno fa
  • Mark Masterson
    Mark Masterson

    surely You confused capacitance with inductance !

    Giorno fa
  • Ed de Jonge
    Ed de Jonge

    Does anyone have an estimate of the current rate between the on state and the off state?

    2 giorni fa
  • Fox
    Fox

    "And you think 'Oh there must be a capacitor.' but you'd be wrong." Minutes later: "And all that wire acts as a capacitor." So what you are saying is that there is a capacitor.

    2 giorni fa
  • Dan Casey
    Dan Casey

    @Nighterlev I have a reasonable grasp of inductive coupling between coils, and an equally thorough understanding of capacitive coupling of electron fields across an insulator. This video offers (however unclear to many) an example of the later.

    19 ore fa
  • Nighterlev
    Nighterlev

    @Dan Casey do you know what coil's are?

    19 ore fa
  • Dan Casey
    Dan Casey

    @Nighterlev no.

    20 ore fa
  • Nighterlev
    Nighterlev

    It acts more like a coil, rather then a capacitor.

    22 ore fa
  • Deano
    Deano

    Did he dribble water out over the plugs...........without his wonderful gloves on .

    2 giorni fa
  • tom nugent
    tom nugent

    Post the link to buy the bulb.

    2 giorni fa
  • Xcieg
    Xcieg

    Okay I get this all for Alternating current, but why does it do this when I install L.E.D dome lights in my car? Albeit, the brightness is only visible at night time when the lights are "off."

    2 giorni fa
  • Surfing Drunk68
    Surfing Drunk68

    Are you sure it's not just the live feeding the bulb but with no neutral returning it still lights up but not at full

    2 giorni fa
  • mark hall
    mark hall

    So if the light stays on is it FREE power to light LED????

    2 giorni fa
  • Greg Simcock
    Greg Simcock

    The effect is caused by inductance in the large coil of wire, AC current rising and falling magnetic field from the active line, the leading voltage in the inductance of the coil against the lagging capacitive current, feeding a small reactive effect on the LED circuitry which rectifies current passing through the reactive input circuitry of the LED, exciting the electrons to pass the knee voltage point of the diodes which causes the LED to glow at the owners expense.

    2 giorni fa
  • Norglad Mbile
    Norglad Mbile

    If my physics teachers did this.. Maybe I'll be someone else now

    2 giorni fa
  • Norglad Mbile
    Norglad Mbile

    I love your explanations.. and demonstrations

    2 giorni fa
  • xanataph
    xanataph

    LEDs can light with extremely low current. I was showing by son how to use his electronics experimenter's kit today and we connected an LED to the battery through a resistor. We had the two largest resistors in the kit (470K ohm & 220K ohm) in series and the LED was still visible in a darkened room!

    2 giorni fa
  • Drake Dragon
    Drake Dragon

    i saw this...and figured it out at the beginning.

    2 giorni fa
  • Tulio Janniere
    Tulio Janniere

    Alternative explanation. From 2.7k+ comments; I can't be the only one to mention Zero-Point-Energy that the longer added wires are accumulating and the cheaper bulb does not need much to illuminate.

    2 giorni fa
  • shon evans
    shon evans

    turn the lights off baby let's get busy . turn the lights off I'm trying dammit there new bulbs I'm leaving

    2 giorni fa
  • RAY NL
    RAY NL

    @shon evans Why the defense stance? I just asked a question. Or are you insecure about your humor? Hehe.

    4 ore fa
  • shon evans
    shon evans

    RAY NL yup enough to get a reply for you kudos

    6 ore fa
  • RAY NL
    RAY NL

    Is that your attempt to humor?

    6 ore fa
  • Jo Mendez
    Jo Mendez

    lol ..

    2 giorni fa
  • Stuart Hayes
    Stuart Hayes

    Why not just disconnect the red wire from the block, leaving the live (black) wire far less exposed. Less dangerous, no? Also, my first guess was solar cells picking up the LED glow, and feeding the power back into the LED. Would that work hypothetically to keep the bulb glowing?

    2 giorni fa
  • Duane Antor
    Duane Antor

    The wire coil is acting as an inductor not a capacitor.

    2 giorni fa
  • Duc Iese
    Duc Iese

    Dry capacitors, mate The wire it's like a coil/ capacitor. The led board contains static capacity, non polarised. Have 20% lighter.. whatever you think

    3 giorni fa
  • Duc Iese
    Duc Iese

    Can you please do anology with some hamburger buns? That's how you can have a permanently break in the circuit

    3 giorni fa
  • Alans Snack
    Alans Snack

    so basically , the wires are like batteries.

    3 giorni fa
  • Flabber Gasted
    Flabber Gasted

    This reminds me of Dirk gentlys everbulb

    3 giorni fa
  • Harsha
    Harsha

    It seems like the circuit is replacing phase with neutral and neutral with phase. Its like giving good phase to capacitor it automatically induces negative at capacitor negative terminal but the beauty is the LED flow current it very low thats why when switch is off its intensity is low but it actually disintigrates life time of the product

    3 giorni fa
  • templarseries
    templarseries

    Is it not that the led bulb is dc and the supply is ac. The bulb has a conversion circuit in it and a single pole switch will not cut the ac mains from both sides of the bulb? I did not see you test the bulb with short wire (no long 'capacitor' wire) connected only to live or neutral but not both. I'd be interested to know if it glows if only one half of the mains is supplied to it,then it would not be the capacitance of the cable but the fact that the bulb is still getting current from either ac live or ac neutral?

    3 giorni fa
  • rldel149
    rldel149

    No. Forgive me but I'm fairly certain your analysis is complete rubbish. An ideal circuit you illustrate will not work. 50 hz is very slow. So to drop the impedance of a low capacitance capacitor to the point you have a high-pass filter is very unlikely. However, I believe what you actually have is an LRC network and with a high impedance/low power bulb you receive sufficient voltage across a voltage divider circuit to excite the emitters.

    3 giorni fa
  • Bruno Fonvieille
    Bruno Fonvieille

    Link to buy this fantastic artefact ?

    3 giorni fa
  • Olivia Bryan-Davis
    Olivia Bryan-Davis

    Steve : Don't do this My dad: We should do that Me: lets check with mum. She always says no.😭

    3 giorni fa
  • mark oshields
    mark oshields

    Haha somehow ths came up in my random video list. Though I had experienced it with a 12V DC system...I decided to replace my cars dome lights with LED bulbs and they worked Great!!! until you closed the door and start driving at night....where they stayed on dimly all the time....I used a small 1/4 resistor in line to fix

    3 giorni fa
  • AndrenalinSports
    AndrenalinSports

    Use a switch with 2 pole switching which will cut both of the wires so no glow will remain

    3 giorni fa
  • AWCINEMA AWCINEMA
    AWCINEMA AWCINEMA

    10:27 of my life I'll never get back..thank you for wasting it😡

    3 giorni fa
  • Dank Meme
    Dank Meme

    He didn't waste it, you did, you uneducated potato

    3 giorni fa
  • Sara Llewellyn
    Sara Llewellyn

    power companies use the term 'Energized' to refer to wiring that acts as a capacitor. Outside power lines that are downed in storms are still considered "energized" because they still have that high electrical potential, until they're properly discharged.

    3 giorni fa
  • Dr Logiq
    Dr Logiq

    4:25 STEVE... What the hell man? You have a socket right in front of you... are you crazy?!

    3 giorni fa
  • hitechguy18
    hitechguy18

    even in DC circuits you can use a capacitor as negative/earth and the other leg not connected to anything Another one there can be enouth overall ohms that becomes a drain to a circuit that basically the ohms Void is swallowing energy or converting it to heat both above are more for Radio AM :LW/MW/SW

    3 giorni fa
  • Paavo Bergmann
    Paavo Bergmann

    the faint current to replace that heat generated in the cable coil by Ohms Void could be just enough for the LED to glow at a few percent of its power, if it is not equipped with proper resistors to limit current at breakthrough voltage, as it should be, no?

    Giorno fa
  • 4998826p
    4998826p

    There is a field created simply by coiling wire connected to nothing.

    3 giorni fa
  • Bobby_Boulders
    Bobby_Boulders

    Man it is amazing how quickly you rebuilt that capacitor! :P :P

    3 giorni fa
  • Shockin Ampeel
    Shockin Ampeel

    Ive got one in my house and its a screw in

    3 giorni fa
  • plebiansociety
    plebiansociety

    Are there seriously no other electricians who do LED conversion jobs on here? Brown and blue are AC colors and he's hooking a DC transformer to it. That's it. No magical "inductance is causing it glow and it's this weird Chinese bulb that's a problem". A DC diode and and AC diode are two completely different beasts. An AC led is always grounded to the common side, a DC led floats because there is no ground. What you're seeing is the pull to the ground (this case being the positive side since he hooked u a DC transformer) while backfeeding the led. That's the reason inductance is able to do anything. If it was hooked to the correct AC transformer it would be in parallel and any inductance would be shot back down to ground when the hot side was broken.

    3 giorni fa
  • Jrotor
    Jrotor

    Interesting effect, do you have a link to this bulb?

    3 giorni fa
  • Dohn Joe
    Dohn Joe

    All went well till the analogy of "pushing" electrons and "building a density" of electrons. At that moment you became a moron spreading bullshit.

    3 giorni fa
  • Robert Heinkel
    Robert Heinkel

    I found at our church, we have nine LED lights on a dimmer circuit. A few times I have found the switch off and one bulb still glowing.

    3 giorni fa
  • Paavo Bergmann
    Paavo Bergmann

    dimmer circuits are mysterious things....

    Giorno fa
  • Pasta Sarmonella E-Specialé
    Pasta Sarmonella E-Specialé

    Hey look you found the real deal of one of those eternal energy devices even if this was most likely unintentional, which also means it´s something with a hidden battery inside that is rechargeable hence the light being lit on despite being plugged out from an electric cable.

    3 giorni fa
  • Pasta Sarmonella E-Specialé
    Pasta Sarmonella E-Specialé

    @kingcrimson234 The thing was that it was a joke of how it was a free energy device because it´s poorly engineered just as some other cheaply made stuff from china.

    3 giorni fa
  • kingcrimson234
    kingcrimson234

    No this isn't eternal energy. It's still using electricity and will show up on your power bill.

    3 giorni fa
  • Karl Hamilton
    Karl Hamilton

    +1 subscriber

    4 giorni fa
  • DLoveArts Entertainment
    DLoveArts Entertainment

    Seems to be emitting some type of radio waves, based on how it affected the camcorder at 1:01

    4 giorni fa
  • Linas Vaičiukynas
    Linas Vaičiukynas

    That is due to the frame rate at which camera is filming and AC frequency it is due to the rolling shutter effect. Since he is filming at standard frame rate witch should be 24 or 25 frames per second and the AC frequency is at 50 times per second the camera is to slow to refresh the whole sensor pixel array at the same time. It can refresh maybe half of the pixels in one cycle of a electricity glow. So by the time half of the sensor gets refreshed, the electricity glows maybe two cycles and overlaps with each other at the same pixel line each time. So some of the date simply do not get written or "seen" by the camera sensor. That way we can see the electricity moving through the whole frame. This is why car LED lights usually blink in the video footage, there is even a video of helicopter taking off and because of this effect the helicopters blades in the video look standing still.

    3 giorni fa
  • A Dog
    A Dog

    Well, I had a different case of "zombie bulbs" (it was in times when we used fluorescent bulbs). The bulb glowed in pulses at night. Like it's off, then it blinks, and blinks from time to time. It was not the bulb's fault but of course invalid wiring in my apartment. You should break the live wire, not the zero. The wires coming to the bulb were connected wrong, so the zero was disconnected with a switch. Then, we have some humidity in ceilings and / or wire insulation, so new circuit was made between live wire, the bulb and grounding. It had relatively high impedance, but enough to allow a small current, which in turn allowed the bulb to glow. I reversed the wires, problem solved, no more "zombie bulbs". So if you seeing something like this, consider fixing the wiring. Reversed wires are DANGEROUS. You could get electrocuted if turned off the light with a switch and touch the wire (when changing a fixture for example). Yes, I know, we should ALWAYS check for the live wire even if the power appears to be off. Oh, IDK how it's in your county's regulations, in mine ground fault breakers are not mandatory, but everyone should have (at least) one for one's own safety.

    4 giorni fa
  • plebiansociety
    plebiansociety

    he didn't just reverse the switch, he's all kinds of f'ed up. He's running DC to an AC bulb.

    3 giorni fa
  • Jo Blow
    Jo Blow

    I hate morons that don't understand conservation of energy. THERE IS NO SUCH THING AS FREE ENERGY! That is why I didn't bother with your video after the first 15 seconds. I don't give a shit how you justify all the nonsense or what kinda tricks or BS you want to convince me of, you are just wasting mine and everyone else's time.

    4 giorni fa
  • Theoria Apophasis
    Theoria Apophasis

    no such thing as electrons son... Tesla said it, JC Maxwell said it, Heaviside said it..... etc.

    4 giorni fa
  • Blackfalk
    Blackfalk

    no atoms either :|

    3 giorni fa
  • no narc
    no narc

    My LED porch light stays on (dimly) when i turn the switch off. Also, if, from my porch, i hold a voltage detector toward the power line running in front of my house, I get a strong signal. I'm wondering if the EMF from the power line is keeping the LED lit? I ran some electric fencing under the high wire, then ran it about 200 feet perpendicular to the highwire, and with a voltage detector, it's still picking up a signal, 200 feet away along the electric fencing.. The EMF from the highwire is being carried along by the electrical fence wire. Any ideas about that? Could I get free power from the EMF emanating from the highwire in front of my house?

    4 giorni fa
  • Matthew Jenkins
    Matthew Jenkins

    I have a similar situation at home, with 3 similar led bulbs in a chandelier type fitting. There are 2 light switches at each end of the room, controlling that fitting. If I turn the lights off and there is still a dim glow, I turn them back on and use the other switch. Then they go off fully.

    4 giorni fa
  • NORFBOY
    NORFBOY

    will it still glow if I shove it up my bum?

    4 giorni fa
  • Nathan Byrum
    Nathan Byrum

    July 5 2019, the day his insurance quadrupled.

    4 giorni fa
  • JENSON DAVID SEE
    JENSON DAVID SEE

    You’re not like electro boom.you wear gloves

    4 giorni fa
  • Mark Curry
    Mark Curry

    Is this the same reason why you are able to power a lightbulb through a telephone outlet?

    4 giorni fa
  • Paavo Bergmann
    Paavo Bergmann

    I think not. Telephone landlines were supplied with 60V to carry the signal, so it is just enough to make a small bulb glow. Just like that.

    Giorno fa
  • Patric Spohn
    Patric Spohn

    8:48 Is he suggesting to fiddle with our home's wiring?

    4 giorni fa
  • Ronnie Paul
    Ronnie Paul

    switch the neutral and not the positive on the DC side and no cap charge will be moved through the led!

    4 giorni fa
  • Ronnie Paul
    Ronnie Paul

    @Paavo Bergmann this is 12 vots.. killing the ground is a very common application..

    Giorno fa
  • Paavo Bergmann
    Paavo Bergmann

    So its down to improper installation wiring? figures. And you wouldn´t notice with bulbs.

    Giorno fa
  • guzelovalish
    guzelovalish

    I saw this phenomen in a XC70 Volvo , the ligths did dim when it should have gone black and the cars is DC , any explanation ?

    4 giorni fa
  • plebiansociety
    plebiansociety

    backwards wiring. the D in LED means diode so if you have it backwards the diode (a one way electrical gate) doesn't fully function.

    3 giorni fa
  • Atimar01
    Atimar01

    reason the bulb works, is lack of electronics. the "not working bulb" has a transformer and other components to make the bulb work better (less distortion in the mains current) the cheap Chinese version has very little electronics, as if it were a simple DC circuit. it most likely has a resistor(current limiter), and a crapload of LED's anti parallel or a diode bridge and a bunch of LED's normal in series. since thers no real current regulation like in the not working version, it will light up with the smallest of capacitors in series.

    4 giorni fa
  • Charm Lite
    Charm Lite

    But it goes off after you unplug the AC. You are sharing phantom power in the secondary from the common.

    4 giorni fa
  • plebiansociety
    plebiansociety

    no, he's using a DC transformer on an AC bulb

    3 giorni fa