... raise temperature. 4) Low power consumption. 400w magnetic ballast for metal halide lamp and sodium lamp CodeWattLamp typeCurrent(A)VoltageP/FCP(uf)TLB7070MH ... .5) Providing long service life and super quietness.6) Low magnetic leakage.7) Watts:35W,50W,70W,100W,125W,150W,250W ... ,silicon steel sheet.10) TW:13011) Certificate: CE. 400w ballast magnetic ballast for metal halide lamp