What UPS do I need?

[moshan]

Hello! I'm encountering voltage fluctuations and I want to buy a UPS. My question is what UPS do I need if my PSU is 450W?
I've seen that the UPS voltage is measured in VA...So I will need an UPS which has the number of VA converted in W 450 or higher?
I'm also using this only for PC and not for monitor.

 

[Onus]

Sometimes the AVR isn't just a buck/boost, but switches to battery. Make sure you test whatever you get to make sure your PC doesn't just shut off when the UPS switches to battery.