... listed(American standard). 2.Wide range of wattages:1000W. 3.HPS magnetic ballast HPS 1000W:1.Physical Description:Ballast is an iron-core inductor coil, the ... 100W,150W,175W,400W,600W,1000W.B. It specially for MH or HPS lamps.C. This inductance ballast is more durable and everlasting ...