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  • Just a note: all the "pixels" I got recently work flawlessly with 3.3v controllers. No diode to drop the supply voltage, no nothing
    Tried running these with MDBT42Q module and ESPs. Powered the LEDs from USB -> 4.9V at the output of the LEDs. And a full strip with a proper 5V power supply that outputs ~5.0-5.1V, all worked without any problems.

    And all of them are GRB or GRBW.
    Maybe someone on the far east created a "compatible" chip that works reliably with 3.3v?

    8x on a board, single leds, GRB strip, GRBW strip


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