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I bought this to use in a fishing aerator, eotks very well, no longrr needa batteries just usb power bank, very easy to adjust output voltage to what you need you can see output voltage on led display.
Verified purchase: Yes | Condition: New
I am surprised that it works as well as it does. Regulation is + or - 1 mV at 0 - 200 mA. Efficiency is at least 70%, much better than using a series regulator.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New