... .RoHS compliant & ISO9001. 4.OEM. ProductionnameBC1 Adjustable Rheostat,Variable Resistor,Wirewound ResistorPower rating25W-3000WResistance value1Ω-10KΩResistance tolerance±5 ... in educational modeling,load simulations,industiral machinery RPM adjustment,voltage and current adjustment,instruments,and automated control installations, ... and packing .3. More details, please contact us. variable rheostat