8 of them. Whilst that’s about twice as many volts as our favourite surge protectors Permit by way of, it’s nevertheless much better surge protection than we’ve found from some other UPS. Once you've sorted the potential, you might want to Examine the gadgets you'd be connecting for the UPS, https://trentonm89w0.blogsvila.com/34062010/not-known-factual-statements-about-ups-ups