XY-SJVA-4 3A 35W DC 5 -30V to DC 0.5 -30V Step Up Down Buck Boost Converter Power Supply Module Voltage Regulator

Description

Nice cheap unit with excellent power capabilities for the size. Temperature output is 41° after 10 minutes running at 20W.
Input voltage range is 5.5V DC to 30V DC, output can go through 1V to 30V. 3A constant. Buck or Boost so input can be higher, lower or equal to the output voltage.