Adjustable Rheostat 1.Variable Rheostat 2.High stability and high quality. 3.RoHS compliant & ISO9001. 4.OEM. ProductionnameBC1 Adjustable Rheostat,Variable Resistor,Wirewound ResistorPower rating25W ... used in educational modeling,load simulations,industiral machinery RPM adjustment,voltage and current adjustment,instruments,and automated control installations, ect.4 ...