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4.88 out of 5
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  • 18/06/2018

    Arrived packed well, nothing broken. Works very nice on sun light or flashlight, but AFTER some balancing - it comes so dis-balanced that causes a lot of vibrations and difficult start. It required from me to add x3 M3 nuts on one side with hot glue ! After that - spins nicely :-)

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  • 02/07/2021

    good, works fine

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  • 01/03/2021

    jaz

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  • 24/02/2019

    I was pleasantly surprised with the nice workmanship. I did add 4 felt pads to the base after removing plexi paper to make it stable. As mentioned, I noticed the wobble at the free end during speed. After adding 2 lead pellets to rotationally balance that end that wobbled, it ran much better on less light and with much less wobble. Alternately one could use a wad of solder. Quietest motor you will ever not hear! Also tried to end for end shaft in holder and that helps.

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  • 23/07/2018

    It should come with instruction about what level of Lux for use it . If you are in the room . The bright from the lamp may not enough to move the shaft. But if you it outdoor. The shaft can rotate without stop even on the cloudy day. The other thing that I found . Because of the weight of the shaft is not balance by the shape of solar sheet on the rotor. So when it turn with high speed . The shaft may moving out of center. If they can improve of the weight balance.

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  • 23/05/2019

    Excelente produto, faz tudo o que foi prometido. É bem didático e serve para ser utilizado em sala aula. Eu indico o produto!

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  • 18/07/2018

    A extremely honest company to deal with. I would recommend them to everyone. They communicate well and stand behind their products. Thank You.

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  • 15/08/2020

    awsome product works great fast shipping

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  • 05/02/2020

    Thanks

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  • 06/01/2020

    best seller

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