Caveat: This solution focuses on the computer hardware, not other gadgets That may even be powered through the UPS. I have viewed occasional stories of non-sine wave power remaining incompatible with certain other products. all classes and interfaces from the superclass hierarchy (e.g. see Java class is current in classpath https://bangkokwax92457.blogsmine.com/34234764/indicators-on-uninterruptible-power-supply-you-should-know