Sennheiser High Power IR Power Radiator with a power output of 35VA. Designed for use with 120V/50-60Hz/35VA and is ideal for powering a variety of pro audio equipment. The brand name Sennheiser is synonymous with high quality and reliability, making this radiator a great choice for any musician or audio professional. The model number SZI 1219-120 ensures that you are getting the latest and greatest in terms of technology and performance.