SMT750IC vs SMV750CAI

[sib2024]

Hello 

Regarding those two items 

SMT750IC vs SMV750CAI

I don’t need notification for events but I cannot decide between those two models .

The only notable difference that I found is that the SMV has lower surge protection 190J , and the SMT has higher surge protection 540J, and connectivity differences between them.

How much matters the surge protection value ?

I want to protect a sound system and a smart tv , I understand that , for avoiding disturbing noise in audio systems it’s necessary to have a sine wave electric power.

Also in another place , I want to protect an ornamental fireplace that requires sine wave electric power .