Features 1、100% brand new and high quality. 2、The product adopts the oxidized and insulated wire, which is tightly wound on the porcelain tube and fixed on the metal protection bracket. 3、It plays the role of control circuit by changing its own resistance. 4、This product applies to circuits which is below 50Hz, 380V, below DC 440V. 5、It can be used as a current and voltage regulator for research and demonstration in the laboratory, as well as for excitation and speed control of power generation equipment and DC motors. Specification Features: 1. 100% brand new and high quality. 2. The product adopts the oxidized and insulated wire, which is tightly wound on the porcelain tube and fixed on the metal protection bracket. 3. It plays the role of control circuit by changing its own resistance. 4. This product applies to circuits which is below 50Hz, 380V, below DC 440V. Specification: Condition: 100% Brand New Current: 1.5A Resistance: 50Ω Weight: Approx. 340g / 12.0oz Package List: 1 * Sliding Rheostat Package List