According to Pop :
If you've got a link or anything to show those items,
it might be possible to make some judgements. Any
surge protector is a "transient voltage" surge
suppressor,

Surges are long duration events, with not that high of a voltage.
Transients are very fast very high voltage events. While some
protectors will do both, it's not necessarily so.

Lightning generates transients. Usually not surges.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.