The bea 635 is characterised by its high reliability and long life for this amongst others high quality branded capacitors of the quality class up to 105 c are used with the integrated 4 kv surge input filter the bea 635 can also be used in harsh industrial environment it delivers 350 w continuous power from 10 c to 50 c without restriction the ball bearing mounted temperature controlled fan has a tacho signal and can always be monitored from the board which is an important point