The SHUNT REG FINE-ADJUST HV, 4.10OHM 15W part from Pololu is a high-voltage, adjustable shunt regulator rated for 4.10O and 15W. It is suitable for current regulation, voltage regulation and for total power dissipation up to 45W. The device also offers two sets of fine-adjustment options, adjustable using a small trimmer, as well as a higher power, fixed shunt option up to 100W. It is simple to use and provides excellent performance efficiency, making it an ideal solution for many applications including automotive and industrial.