5 Wattage and 50 Ohm, 5% tolerance. Wire Wound Resistor owns high stability and accuracy. Moreover, it was used for various application because of the wide resistance range.||Aluminum Housed. An insulated cover on the wounded wires would block out the heat, which promises the high performance of a resistor. Hence, the cooling job was achieved by aluminum case.||This 5W resistor formed with qualified copper, nickel, and aluminum. With the compact structure and heat dissipation design, a capability of overload has been built.||Board length 3/4 inches(19mm) and two wires for a connection.||Reliable. Problems like the flush LED would have a perfect solution, or you can use it in any AC DC circuits, converter, inverter, motor speed control, drivers, etc.