The 600W Electronic Ballast (Lum. Adjustable) is "intelligent" (230V input voltage, and lights both metal Halide lamp and High Pressure Sodium lamp), highly efficient, and energy-saving. It has high power factor, high luminous efficacy, as well as low THD. It is equipped with an open/short circuit protection technology. Its high operating frequency (25-100KHz) provides constant power output to the lamp, prolongs the lamp's usage life, and increases light efficiency. "

We have 1000 dim to 600W
600W dim to 400W
400W dim to 250W available.