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4.79 out of 5
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  • 15/05/2022

    Very cool well done and fun. You came all the way. I just think it had to come in a tougher or tougher packaging so it wouldn't deform the induction ring

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  • 03/03/2022

    Awesome

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  • 25/03/2022

    Arrived in good condition.All 10 LED's work perfect.You get 2 LED's of each color,Blue ,green,red,white and yellow.I would recommend this products.

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  • 24/02/2022

    Great product working within the eight inches indicated. There are 10 leds (2 for each color yellow red white green and blue). It also works through wood 2 cm high.

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  • 07/08/2023

    Very nice and funny module with lots of possibilities using your imagination. 10 LEDs attached to a small inductor are provided in 5 different colors which can lit inside or outside the coil. I want to test it mounting them in a rotary plate to see the effect in movement. I also have added a USB-C connector to it for powering convenience.

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  • 26/07/2023

    These are fun. So many possibilities, I just have to decide where to begin.

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  • 30/03/2023

    Very funny device, only improvement can be USB as power connector. My son spends hours moving shining marbles back and forth.

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  • 24/01/2023

    The product works wonderfully well! It consumes from 70 to 80 mA from a 5V source. Each LED's is powered by a small SMD-inductor, which couples to the magnetic field generated by the coil. It is instructive to use an LED-inductor combination as a sensor to visualize the path and density of magnetic flux lines.

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  • 17/09/2023

    Everything sparks flawlessly.

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  • 25/05/2023

    good

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