Jim,

Thank you for the excellent explanation. I'm just about to print it out, for personal reference.

I've never heard of a UPS; what is it? I've read through the tripplite specs and there's nothing mentioned about EMI/RFI filtering, which, I assume, is what some of these other power conditioners do. Is this a valuable feature to have, or is it unnecessary with a UPS? Can I achieve a UPS configuration with any of the items listed on this page:

http://www.surgex.com/products.html

which also include EMI/RFI filtering?

Jim, thanks for your help!

John