The cheap Chinese bulb that won't turn off

  • Published: 05 July 2019
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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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Comments • 3 463

  • FoulFox TV
    FoulFox TV  14 hours back

    The US LED had a transformer on it which takes all current and makes it another current; or, as explained, it equalizes the residual current effectively making that charge null.

    • brion gamboa
      brion gamboa  18 hours back

      I want this bulb.. please post a link.

      • Laura Haaima
        Laura Haaima  3 days back

        Thanks I now understand my construction ledlight.

        • Hammy Technoid
          Hammy Technoid  5 days back

          The collapsing magnetic field of a coil is the principle of operation for the ignition coils on gasoline engines. Even drag racing engines still use "Magnetos", a coil that produces huge current to fire the spark plugs that give those behemoths in excess of several thousand horsepower.... Coils are awesome... just ask the speakers you're listening to the audio of this video!

          • Frank T
            Frank T  5 days back

            There's totally nothing wrong with the bulb at all... the reason that the bulb lights up is that there is current flowing through it.
            Remember LED will light up with a very small current of just a few milliamps, unlike filament bulbs that require much larger currents such that it can generate sufficient heat before lighting up.
            I would recommend that you get your house wiring checked immediately before someone gets killed.

            • AmyX
              AmyX  6 days back

              Running out of electrons. Truly a horrible thought.

              • Justin Robinson
                Justin Robinson  6 days back

                4:16 water and electricity seems like a great mix

                • Jay Vids
                  Jay Vids  7 days back

                  this could be caused by a shared neutral or a loaded or a broken neutral so get your metre out and check both sides against Earth...very common problem in the UK if you have this problem get it checked.. all are very dangerous and can kill ...if the bulb lights when you touch it you are the ground call for an electrician not a DIY job

                  • penroc3
                    penroc3  1 weeks back

                    its a cool effect for sure, at first i thought it was going to be some induction thing because of the coil of wire.

                    • Sergio Grech
                      Sergio Grech  1 weeks back

                      Its induction beacuee of AC current not because of a capacitor.....

                      • Szilárd Hompoth
                        Szilárd Hompoth  1 weeks back

                        I bought some the same type of bulbs. The glow was very annoying at night. When I changed one of these LED lights to an incandescent bulb in the lamp the annoying glow went away.

                        • Braeden Collins
                          Braeden Collins  1 weeks back

                          so what you’re saying is this is how you craft a redstone torch irl

                          • mike .D
                            mike .D  1 weeks back

                            its an inductor

                            • The Lucondrix
                              The Lucondrix  1 weeks back

                              I remember old cords you could unplug and it kept electricity in it for several minutes, I used to get shocked all the time. LoL

                              • andy pistone
                                andy pistone  1 weeks back

                                that is a inductance has the same effects that a capacitor , more or less, is not quite the same but stores energy like one

                                • Andrea Fieschi
                                  Andrea Fieschi  1 weeks back

                                  I've studied Electronic Engineering, but that's the best explanation of Voltage that I've ever heard.

                                  • paradigm respawn
                                    paradigm respawn  1 weeks back

                                    So, not capacitance, but passive inductance from parallel energized lines. OK

                                    • Reaven
                                      Reaven  1 weeks back

                                      Does this still increase my electricity bills? Can i get free lighting this way?

                                    • Patrick Przezdzink
                                      Patrick Przezdzink  1 weeks back

                                      open wires, water, electricitie... boy you livin a dangerous life.

                                      • Siddhartha Thakur
                                        Siddhartha Thakur  1 weeks back

                                        It’s acting like an inductor not a capacitor. The coil of wire is opposing a change in current. The loop of wire has a magnetic field around it. When current flow is interrupted, the collapsing field generates current.

                                        • Ed Soderlind
                                          Ed Soderlind  1 weeks back

                                          bi o flor esense?

                                          • Ed Soderlind
                                            Ed Soderlind  1 weeks back


                                            • PrankSquad
                                              PrankSquad  1 weeks back

                                              Trow a black hole to it and look whats going to happen

                                              • ♫♪Ludwig van Beethoven♪♫

                                                7:39 I tried but I can't make the capacitor like you did, especially the last bit

                                                • ShivaTheDestroyer
                                                  ShivaTheDestroyer  2 weeks back

                                                  a friend of mine called

                                                  • Underwater Adventures
                                                    Underwater Adventures  2 weeks back

                                                    I recently bought an electronic Banana. I plugged it in and ... Nothing.

                                                    So I'm just gonna .... Eat it.

                                                    • ruslan ruslan
                                                      ruslan ruslan  2 weeks back

                                                      ЗА МЕСТО ПЕРЧАТОК С ГАНДОНАМИ УДОБНЕЙ БЫЛО БЫ

                                                      • Evan lawrence
                                                        Evan lawrence  2 weeks back

                                                        So, infinite energy?

                                                        • Bob The Dabber
                                                          Bob The Dabber  2 weeks back

                                                          The real life glitch

                                                          • David Yodha Sitompul
                                                            David Yodha Sitompul  2 weeks back


                                                            • Bryan Meadows
                                                              Bryan Meadows  2 weeks back

                                                              by replacing the coil of wire in the diagram with a small capacitor the circuit makes more since.

                                                              • sflurp
                                                                sflurp  2 weeks back

                                                                Byron the Bulb

                                                                • Der Wilmler
                                                                  Der Wilmler  2 weeks back

                                                                  Did you have to pay for the extra light?

                                                                  • Socks With Sandals
                                                                    Socks With Sandals  2 weeks back

                                                                    Android is better than iPhone.
                                                                    That's not contentious.

                                                                  • Bryan Hawley
                                                                    Bryan Hawley  2 weeks back

                                                                    iOS is superior to android.
                                                                    This is the correct uncontentious statement.

                                                                  • Julia Lilienstein
                                                                    Julia Lilienstein  2 weeks back

                                                                    Looks like Steve Mould got his teeth whitened.

                                                                    • DenseAlloy
                                                                      DenseAlloy  2 weeks back

                                                                      6:44 technically it was Westinghouse who licensed Telsa's ac/polyphase system and brought it to market. The "current war" is always portrayed as Edison vs Tesla, which was one part of it but it was really Edison's General Electric vs George Westinghouse's Westinghouse Electric.

                                                                      • Weigurde
                                                                        Weigurde  2 weeks back

                                                                        technobulb NEVER DIESSS!!!!!!

                                                                        • anisaampatuan
                                                                          anisaampatuan  2 weeks back

                                                                          The Mizuno experiment can produce 3 kilowatts of heat while consuming 300 watts of electricity. The difference comes from exothermic transmutation. Detailed instructions are provided.
                                                                          Research terms using DuckDuckGo:
                                                                          theorionproject Gary_V pdf
                                                                          theorionproject Stan_Meyer_Full_Data pdf
                                                                          siriusdisclosure Griffin pdf
                                                                          brilliantlightpower MHD_Paper_082719 pdf
                                                                          lenr-canr MizunoTincreasede pdf

                                                                          • William Wagner
                                                                            William Wagner  2 weeks back

                                                                            It's actually acting more like a transformer. It happening through induction just like a transformer. With the other bulb you'd need to remove the rest of the electronics and connect the LEDs direct and they should light up.

                                                                            • M H
                                                                              M H  2 weeks back

                                                                              It's a backfeed from the neutral.

                                                                              • Religious Reasoning
                                                                                Religious Reasoning  2 weeks back

                                                                                so does these bulbs use much power

                                                                                • NSP Marketing
                                                                                  NSP Marketing  2 weeks back

                                                                                  No free lunches, the bulb will eventually turn off and the next time when you switch on the light, all the "lost" electrons have to be "replenished" before the bulb glows again. I am not an electrical engineer, can any one confirm pls??

                                                                                  • Sean C
                                                                                    Sean C  3 weeks back

                                                                                    So the reality of the situation is, the bulb is perfectly fine, it's just the electrical connection that's some bullshit.

                                                                                    • KawaiiPedoPie
                                                                                      KawaiiPedoPie  3 weeks back

                                                                                      Using a syringe of water above the electrical equipment

                                                                                      • KawaiiPedoPie
                                                                                        KawaiiPedoPie  3 weeks back

                                                                                        The electricity goes the other way but I'm not going to talk about that

                                                                                        • Rajesh Pachaikani
                                                                                          Rajesh Pachaikani  3 weeks back

                                                                                          You look like my favourite South African cricketer AB De Villiers

                                                                                          • Lowell Smith
                                                                                            Lowell Smith  3 weeks back

                                                                                            I had this happen on my chandelier when we switched to led 5 years ago , i thought the wire was acting like a capacitor. it always made me scratch my noodle