Aluminum shell resistance ( aluminum shell) series, the shell is made of aluminum alloy; A heat radiating groove on the surface.Small size of power; High temperature resistant; Strong overload capacity with high weather resistance.High precision, low standard induction resistance, high stability, strong architecture.Good flexibility,multiple choice, good for machinery protection, more convenient for users to install. of Application: aging test power supply; inverter; automation equipment; ACOUSTICS; frequency divider and high requirements in bad industrial equipment use.Type: 4 Ohm 4R 100W Watt Power Metal Shell Case Wirewound ResistorColor: GoldSize: 60mm x 21mm x 16mmPackage includes:1X 100W Watt Power Metal Shell Case Wirewound ResistorNote:Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3 cm.