RECKON 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. Resistance: 47 Ohm,Power Rating: 10 Watts,Approximate Maximum Current: 461mA,Pitch: 1.5 inch,Brand: Reckon.