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  • July-13 2020 17:19:17

    They work as expected. Easy to fine-tune the output voltage. In the enclosed figure, the boost converter lies inside the red heat shrink sleeve, and I can now get 9VCD out from the 5V USB mobile charger.

  • May-07 2020 09:51:14

    Good afternoon. Received the parcel. Everything works fine.

  • January-04 2020 08:57:56

    Good product

  • August-12 2018 14:05:43

    small circuit for boosting a Dc voltage. not tested with a load. good quality, satisfied piccoli circuiti di boost per tensioni continue. non ancora provati con un carico. circuito di buona qualità. soddisfatto

  • January-15 2019 07:34:15

    Está tudo certo com esse produto. Vieram os cinco em uma embalagem antiestática muito bem embalado. O conversor funciona muito bem para a aplicação. Recomendo.

  • December-09 2018 23:58:41

    I used these to make a step-up regulator built into my goggle battery cord. This way the goggle always think the battery is full. I added a little voltage display to the Voltage in so I can see when my battery is low.

  • December-30 2017 10:20:41

    высокое качество пайки хорошие рабочие характеристик хорошая упаковка. соотношение цена качество очень хорошое

  • November-13 2017 01:12:18

    До Воронежа за три недели трек только до России. Всё работает проверял с 3.6 вольт на 6 вольт 0.3А без проблем. Смотрим фото. Рекомендую😇

  • May-11 2019 09:46:35

    I drive 2 round chip LED with that boost converter from 5V to 9V and also on an other project with square chip LED from 5V to 12V

  • November-14 2017 01:36:46

    Повышающий преобразователь напряжения. Использую такие для питания устройств с напряжением 5В или 9В от 18650 аккумуляторов. Качество сборки хорошее. Флюс отмыт. Количество соответствует


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