... and four-films,optically controlled,uniform and soft screen to protectyour eyes. Technical specifications: model N-5001 ... %Frequency50KHzVoltage220V±22V, 50Hz±1HzSuitable filmNormal simulation X-ray film, High density digital X-ray film, Molybdenum target mammorgrahy filmPower rating15w30w45w60wProduct ... -locking nip. So it is easy and reliable to lock and release the film.Responsive function: inductor ...