Akozon Converter Module, DC-DC Voltage Converter Multi-output Step-down Power Supply Module 12V to 3.3V/5V/12V

This was ideal board for sending out multiple voltages out to different devuces.

Bought the voltage convertor to lower 12V to 5V which would be suitable to power an Audrino Nano. I intended to use the extra output pins to supply a common input voltage to power a small set of optical relays, the original 12V supply being used for the common output from the relay. The Audrino would be used to send an activation signal to the optical relay to switch. - So I intended to use it to 'split' a 5V supply from the 12V battery to power the microprocessor as well as the optical part of the relays.The Akozon does produce a very stable 5V from a 12V input (battery), however it seems to max out at a current of around 0.13amps. My project can successfully run from a USB supply, but once connected to the Akozon the draw from the Audrino Nano and the relay bank is just too much for the board to handle. The result was a heavy fluctuation in voltage from 4.60V to 5.32V - which produces a low that is more than my optical relays can operate. (ultimately it flicks the relay input circuit on and off rapidly with the Audrino resetting continuously).To test further, the Akozon will power the Audrino Nano perfectly fine with a nice stable supply, it'll cope with a small LCD 128x32 display added or a small tone generator - but adding more than this and it starts to run into issues of too low current resulting in a heavy and rapid voltage fluctuation across the output terminals.Buy it to power the microprocessor, but for best use power all ancillaries from another power supply.

12v at 500ma input, 3.3 ok 5v output was 11.6v. I input 5v & got 3.28v which will do for 3.2v led, & 4.8v.

Just what I needed, 12v, 5v and 3v output from a 12v input, supper small, manual switch and led .