Aluminum resistance series made of aluminum alloy with a heat radiating groove on the surface. Compact size with high power capacity; high temperature resistant; strong overload capability and high weather resistance. High precision, low standard induction resistance, high stability, and robust construction. Good flexibility and multiple application options, suitable for machinery protection and easy installation. Application range: aging test power supply, inverter, automation equipment, acoustics, frequency divider, and industrial equipment with high performance requirements. Type: 4 Ohm 4R 100W Watt Power Metal Case Wirewound Resistor Color: Gold Size: 60mm x 21mm x 16mm Package includes: 1 x 100W Watt Power Metal Case Wirewound Resistor Note: Light and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement may have an error of +/- 1-3 cm.