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  • 27/10/2020

    product that promises.... As it is in the description... looks well finished... I'll see how it works and order another...

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  • 25/12/2020

    Good and simple step down power supply

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  • 10/11/2018

    I mainly got this as i have plenty of 12v power supplies but not enough 9V rather than waste money on 9v batteries I got this and it works flawlessly. I now have another 9v supply for the cost of a couple of 9v batteries. My next project will be a dc bench supply but this will still get used as highly portable.

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  • 09/11/2017

    Got this some time ago and just Managed to put it together. I’m using it to power and test some leds. love the product might get another similar one.

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  • 04/09/2017

    I bought this to use as a charger for 12v SLA batteries. I used a variety of power inputs from a PC power supply 16v and 23v with a massive current, and finally settled on a 19v laptop power supply, using a diode on the positive connection to the battery to stop the battery sending power back to the unit, and a mini voltage display to show the slight reduction in voltage so it reads 13.8v at the battery and 2 amps current (which drops as it charges to full). Works a dream, and can be used for other projects too...

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  • 18/07/2017

    I am very happy with this product as it allows me to charge my lipo battery packs that I made from 18650 batteries from 4.2v to 18v with easily adjustable voltage and current. Make sure you check output voltage with multimeter as calibration could be required , mine didnt and always disconnect battery first to prevent charge back to unit.

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  • 14/02/2019

    herramienta basica para algunos proyectos diy que tengo pensado realizar, facil de usar...

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  • 19/04/2018

    Conforme au descriptif, fonctionne parfaitement avec alimentation sur petit panneau solaire ou batterie pour recharger mon téléphone portable Parfait

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  • 23/03/2018

    Very nice, small, powerfull and super price. I recommend it.

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  • 19/12/2017

    I received it this morning. Now I'm finishing charging a small lead accu with a laptop power supply. I set the max voltage to 13V65, max current 1A. perfect

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