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  • 23/06/2022

    small step down inverter with variable input and output voltages, it can be used in all cases you have a higher voltage and you have to lower it as desired, The maximum current draw must be 1A. In my case I will use it as an adjustable power supply coupled with a diy powerbank.

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  • 12/07/2022

    Great product.

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  • 01/03/2022

    Fast delivery and good quality!

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  • 27/12/2021

    Received. The Board is in good condition but the fan is cracked.

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  • 10/11/2021

    All seems OK.

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  • 27/11/2019

    Сделал заказ, оплатил картой. В течении суток продавец проверил оплату, скомплектовал и отправил заказ. Был присвоен ID номер который отслеживался полностью. Заказ пришёл на двадцать первый день без повреждений. Товар полностью соответствует описанию. Заказывал две платы, они проверены в работе. Всё работает. Продавец надёжный. Советую всем.

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  • 03/10/2020

    ‏Same as the picture fast delivery h

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  • 08/01/2021

    It's okay.

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  • 19/03/2022

    pošiljka je stigla na vrijeme,nakon podešavanja napona i struje crvena Le- dioda koja pokazuje uključenost uređaja je prestala raditi.Indikatori punjenja i napunjenosti baterije rade (obje le-diode crvene boje...) Uređaj inače dobro radi pored ovih sitnih nedostataka.Cijena je adekvatna proizvodu.Pozdrav Mig 21 bis

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  • 20/02/2022

    I'm using this to drive a single high-power LED lamp (perhaps 10W) and it's working fine: nice uniform brightness and it runs very cool. It took me a while to dial in the appropriate current limit (those aren't 10-turn pots; they're like 100-turn!) but once I was able to do that, it worked like a charm. The LED colors and meanings on the product page aren't quite right (some are reversed; "yellow" lights are actually red, etc.) but this isn't a show-stopper.

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