The best Digital Ballast on the market by a long way! Feature soft start intelligent control Sense Smart Protection, each ballast starts microseconds apart avoiding inrush problems. This unit is manufactured from German and Japanese componentry and has the highest HID operating frequency on the Market. Smart Sense protection allows a customer to monitor high/low current, end of lamp life, short/open circuits and over and under voltage all from the ballast. Unit dimms from boost to 400w.