Rapid smps 25a40a rapid sps 9400 209mg buy smps switch mode power supply 15v 40a with digital display a high power switch mode power suppliy housed in a lightweight and compact enclosure with digital led displays for voltage and current readings output is adjustable from 3v to 15v with the ability to fix the output at 138v via a slide switch on base of unit incorporating the following features 230vac supply voltage dual outputs 3 to 15vdc 1st output voltage 138vdc 2nd output volt