This high power MOSFET has an on-resistance of just 8mΩ, but only if the gate is raised to a sufficiently high potential relative to the source pin.

By Julian

Youtuber, shed dweller, solar charge controller aficionado

16 thoughts on “Turning on h4 car headlight bulb with irf3205 mosfet”
  1. Avataaar/Circle Created with python_avatars sparky says:

    Nice👌

  2. Avataaar/Circle Created with python_avatars Edwin ARCENAL says:

    try to use ixtn660n04t4

  3. Avataaar/Circle Created with python_avatars Browarus Pierogus says:

    just watch if you have a high static charge that will kill the mosfet instantly

  4. Avataaar/Circle Created with python_avatars Wilson T says:

    Can a normal gel battery replace a flooded lead acid in automobile?

  5. Avataaar/Circle Created with python_avatars Aamir Adam says:

    Very helpful video.
    Sir can you share connection h4 bulb with battery, i believe h4 bulb has 3 pin for connection, please advise on same.

  6. Avataaar/Circle Created with python_avatars john hopkins says:

    Thank you… footnote: were a simple switch be placed directly between + to gate, with a Gate resistance of 8 milliohms, it would effectively be a "dead short"… ultimately, at 12.6VDC and 0.008 Ohms, resulting in, according to ohms law (for a split-second), a current of 1575 Amps and shy of 20,000 watts… POOF!!
    … or am I missing something?

  7. Avataaar/Circle Created with python_avatars TOMMY HANSSON says:

    I have 12V 555 timer with trimpotentiometer! What transistor do I need to handle up to 50W 12V halogen??

  8. Avataaar/Circle Created with python_avatars David Bolha says:

    Thank you ! 😇🤗

  9. Avataaar/Circle Created with python_avatars The Kaiser says:

    Cool

  10. Avataaar/Circle Created with python_avatars oktay dogan says:

    Yazıdan bir şey görünmez..
    Invisible from the article

  11. Avataaar/Circle Created with python_avatars Markus Tonsaker says:

    Is the light brightness peaking and then dimming down a bit or is that just the white balance on the camera?

  12. Avataaar/Circle Created with python_avatars HAİKO⭐ says:

    Thank's

  13. Avataaar/Circle Created with python_avatars MUHAMMAD HAMIM says:

    good

  14. Avataaar/Circle Created with python_avatars olivia-J Trans says:

    Thank you very much you do know the subject well.

  15. Avataaar/Circle Created with python_avatars Dani Barza says:

    Which mosfet should I use to do the same thing but to make the light on only when I put + 5v on the left pin?

  16. Avataaar/Circle Created with python_avatars Volkswagen1990 says:

    Isn't the main beam 60W? I thought the dipped was 55W.

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