Very simple swap of the lurid yellow flickering LED in an LED candle to a static warm white LED. Or you could put in any colour of LED you wanted.
In the video I refer to the negative lead of the LED as "the resistor lead" when of course it isn't.

14 thoughts on “Simple flicker led candle hack.”
  1. Avataaar/Circle Created with python_avatars Nicholas Leong says:

    Why would you do away the flicker? The candle light effect was supposed to have the led flickers.

  2. Avataaar/Circle Created with python_avatars JOHN ERIC Lindsay says:

    Can these tea lights be wired in parallel to run off AA or AAA alkaline or rechargeable batteries ?

  3. Avataaar/Circle Created with python_avatars James says:

    Do any of these candle lamps come with a separate flicker circuit that can be salvaged or do they all use a flickering LED?

  4. Avataaar/Circle Created with python_avatars TheReviewKing says:

    Do you have an email where I can ask you a question about leds Clive?

  5. Avataaar/Circle Created with python_avatars Innocent Happiness says:

    OMG I just got my flicker account back and reblox thru ANCHETA_TECH on IG

  6. Avataaar/Circle Created with python_avatars Garrett Dykstra says:

    Wow!!!! Thankyou!!!

  7. Avataaar/Circle Created with python_avatars R Stas says:

    Thank you so very much!!!

  8. Avataaar/Circle Created with python_avatars R Stas says:

    Can you tell me where you can purchase just the LED's from?

  9. Avataaar/Circle Created with python_avatars Chakra 1 says:

    Crap switch crap idea!

  10. Avataaar/Circle Created with python_avatars Jenny Jaguar says:

    Is this using a 3mm or 5mm led cell?

  11. Avataaar/Circle Created with python_avatars Haaland says:

    I googled "how to stop a yellow flickering tea light stop flickering", not thinking i would find anything. THANK YOU!!!!

  12. Avataaar/Circle Created with python_avatars Debbieanne2 says:

    So glad to see I'm not the only person who finds the flickering annoying.

  13. Avataaar/Circle Created with python_avatars Crocellian says:

    Dumb Q for a dumb video. Do you think candles flicker? God man you have gone off your rocker.

  14. Avataaar/Circle Created with python_avatars Count Zero says:

    You can use the flickering LED to drive a normal warm white (or any colour) LED so that it still flickers. Here's when a picture would paint a thousand words, but I'll try to make this as clear and concise as possible just using words 🙂

    * Connect the anode of the flicker LED to B+ via the switch
    * Connect cathode of flicker LED to the base of any generic NPN transistor via a 100 ohm resistor.
    * Connect anode of the warm white LED to the anode of the flicker LED (ie. to B+ via the switch)
    * Connect cathode of warm white LED to the collector of the transistor.
    * Connect emitter of the transistor to the battery negative
    * Connect a 10K resistor between base and emitter (needed for reliable operation on the ones I made)

    I've found that this simple hack works really well and is very tolerant of component values. note that I used a fair bit of trial end error to arrive at the values used – judicious application of proper electronics theory may be able to improve efficiency quite a bit.

    The warm white LEDs I used were from Poundland's 2017 "warm glow" parasol light string and they look pretty good – far better than the horrible yellow flickering LEDs.

    I'm pretty sure this circuit could be adapted to run high power LEDs if you wanted marger flickering candle effects.

    I'm also wondering if you could use the same design to pulse a coil so you could make your own "dancing flame" candle – just a thought 🙂

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