STEAD Brand Wirewound resistors are wound with best quality Ni/Cr or Ni/Cr Alloy Resistance Wire having very low temp. Co-efficient on highly alumina based porcelain pipes/rods and wire is protected with high temp. Resistance Compound. Brand: Stead,Resistance: 0.5 Ohm (500Milli-ohm),Power Rating: 40 Watts,Approximate Max Current: 8.94 Amps.Tolerance: ±10%,Pitch: 2.4 inch.