... the problem of blinking, lighting trouble, wrong computer operation and others caused by normal ballast.Product size: 85mmx72mmx22mm, weight 350g.175W-1000W magnetic ... service. OEM service available.imagesmagnetic ballast 75W, magnetic ballast 125W, magnetic ballast 250W, magnetic ballast 400W, impedance ballast for metial halide lamp, electronic ballast, ballast for sodium vapour lamp, electronic ...