Leythos wrote:
interesting to see that you've changed your message to state "sub-$100"
instead of just UPS, as it appears you learned from your mistake in the
past.

I have not changed anything. We were always discussing what DanS has
now described as a sub-$100 UPS - also known as a computer grade UPS or
what most everyone has when they use UPSes. This was always defined as
different from other UPSes such as the building wide UPS that may do
power conditioning AND that has that dedicated earthing wire. But
computer users typically use the sub-$100 UPS - which is what was
discussed previously, These UPSes connect AC mains directly to
appliance. So where is this power conditioning? It exists in urban
myths.