... ballast 1-Low power consumption; 2-Provides long service life and super quiet; 3CE, CCC, TUV, RoHS, EMC, EEI=B2 Metal halide ... temperature.4) Low power consumption.5) Providing long service life and super quietness.6) Low magnetic leakage.7) Watts:35W,50W,70W ... ,silicon steel sheet.10) TW:13011) Certificate: CE.More VOLT and design are available, for any further questions, just feel free ...