ARRI 12/18 1000Hz 250V Electronic High-Speed Ballast for 12000W and 18000W Discharge Lamps, ALF, DMX, AutoScan

New possibilities opened up by today's digital cameras have made higher frame rates increasingly popular. Images filmed at 200 fps and beyond without any sacrifice of image quality require sophisticated new lighting tools. ARRI already offers a wide range of high speed ballasts, up to 9,000 W. The new electronic ballast EB 12/18 HS now extends that range all the way up to 18,000 W.

A new AutoScan mode scans the lamp from 900 to 1,200 Hz and determines the frequency that will minimize light fluctuation. This advanced feature sets the optimum lamp frequency according to each specific setup, since the behavior of discharge lamps may change with the tilt angle and the number of burn hours. AutoScan is automatic and requires no interaction from the operator. In addition, a manual mode is available that allows users to set the lamp frequency manually. Whether controlled manually or automatically, the wide bandwidth of 300 Hz ensures that the ideal lamp frequency can always be found, even for very high frame rates.

The new EB 12/18 HS also offers all the standard features of ARRI ballasts. It controls lamp wattages not only through the current or voltage; Active Line Filter (ALF) is included, as well as DMX. The indicators on the front panel show the lamp wattage, DMX channel, operation mode and the selected lamp frequency. Together with the ARRIMAX 18/12, the EB12/18 HS provides a unique system for extremely powerful high-speed, high-quality images.