RoyalUltra electronic ballasts also digital electronic ballasts for Quartz Metal Halide are designed and developed to match the RoyalUltra industrial and commercial lighting Rolls-Royce HID lights, and are the same with the general HIDs. RoyalUltra electronic ballasts adopt the kernel techs of FPGA digital Techs and reach: 1Ultrastrong capability of heat dispersion since from the materials used 2No toxic material Voltage input range:70--150Vac,185--285Vac,50Hz--60Hz Power factor:larger than 0.99 Efficiency:95%(Max) THD:less than 10% Output power:750W Current crest factor:less than 1.5 Protection of short circuit:Available Protection of open circuit:Available Protection of ignition failure:Available Protection of thermal:Available Protection of end of lamp life:Available Weight: 3.05kg or 6.72lb Operating temperature range:-30C--+50C Dimension (LXWXH):350x111x79mm/13.780 x 4.3703.110 inch Max case temperature(TC):90C Safety and regulation: IEC61347 EMC: EN55015