... Provides long service life and super quiet; 3CE, CCC, TUV, RoHS, EMC, EEI=B2 Metal halide lamp 250w magnetic ballast CodeWattLamp ... .4232/50Detailed Product Description.Electromagnetic ballasts for metal halide lamp,sodium lamp,mercury lamp 35W,70W,125W,150W,250W,400W,600W,1000W,2000W ... 4) Low power consumption.5) Providing long service life and super quietness.6) Low magnetic leakage.7) Watts:35W,50W, ...