The statron universal power supplies are recommended especially in education and training sector because of their compact design and superior price performance ratiothe switchable output voltage 0 25 v can be used as both ac power or via the built in bridge rectifier as a dc voltage taken at separate safety sockets in addition this device still has a fixed voltage source with 6 vac and 5 aac the security is ensured through compliance with the standards en 61010 and 60950