As I understand, after referring the Part Number, you have concluded that DDR3L will suit me as opposed to DDR3?

Correct

I ask this as you had mentioned before (not knowing the part number), that DDR3 would be the choice for me. If both DDR3 and DDR3L are okay (the link you have mentioned has both), which one is the better choice for me?

Your laptop shipped with DDR3L, so use that. It could possibly use either, but why risk it?

The RAM I linked is advertised as both, it can probably run at either 1.35V or 1.5V, but will definitely work with your system.

Your info will help me and I hope this is not a bother.

Not a bother at all. Glad to help when I can.