Iame X30 Salettra ignition vs PVL

Hello
Im looking at an X30 motor and for the ignition see two types of models - one is a salettra and the other a pvl. Both look similar.

Is there any difference between the two???

Is one preferable over the other?

Or are they the same??

Have an option to get one or the other so want to know which way to go.

Cheers!