Is your problem due to diminished voltages (ie below 120 volts) or high voltage spikes (that well exceed 330 volts). Apparently you have assumed the UPS does everything. Nothing does. A UPS it temporary and dirty power during a blackout - since blackouts can destroy unsaved data - and do not...
Understand why damage exists. A surge did not enter an HDMI port, do damage, and stop. A surge means a current is everywhere in a path from cloud to ground. That path included one wire incoming to the TV. And another outgoing wire. It is called electricity. Current must exist on both...
Your surge protector is a UPS - does not even claim effective protection.
How big must it be for temporary and 'dirty' power during a blackout? Well, your computer draws about 200 watts. And may intermittently peak at 300 watts. What is the wattage of that display? Add those numbers...
If it is a surge protector, then it does not have 325 watts. 325 watts is power from a battery. That is a UPS. It does not do and does not claim to do surge protection. You discovered its watts number. Numbers for surge protection must also exist. Post numbers that define protection from...
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