• History GUNMETALGREY1-x :

    • Efficiency rating
      0
      WN7
      0
      WN8
      0
    • Efficiency rating
      752.14
      WN7
      966.5
      WN8
      1,080.27
    • Efficiency rating
      1,272.9
      WN7
      2,047.28
      WN8
      2,660.42
    • Efficiency rating
      614.7
      WN7
      448.47
      WN8
      757.74