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  • How are reviewers describing this item?
    great, small, easy, set and little.
  • Our engine has profiled the reviewer patterns and has determined that there is high deception involved.
  • Our engine has analyzed and discovered that 47.6% of the reviews are reliable.
  • This product had a total of 349 reviews as of our last analysis date on Feb 9 2020.


Most positive reviewquestion

Just what I needed for stepping 12V down to a more comfortable 5V for my ESP8266.

Least positive reviewquestion

Perfect 2 of them you sent won’t push power at all, so I paid for 6 and got 4 I gues

Most authentic reviewquestion

i use it to get red of RF noiseit works

Least authentic reviewquestion

easy to use and adjust, work great for 3d printer applications and i am sure many other uses.

Helpful Insights


    Posted by a reviewer on Amazon

    I bought 5v fans, but the printers ran 12 and 24 volts.

    Posted by a reviewer on Amazon

    Could have used a warning to observe polarity.

    Posted by a reviewer on Amazon

    They sort of self destruct is input polarity is reversed.

    Posted by a reviewer on Amazon

    More like a aaa battery kind of small.

    Posted by a reviewer on Amazon

    Only gripe, the terminals should have been placed on even 0.

    Posted by a reviewer on Amazon

    That said, i knew what i was getting, so i can't bring myself to lower the rating.

    Posted by a reviewer on Amazon

    So nowhere near the max ratings for the device.

Review Count History
Price History