laptop - DDr3 or DDR3L for Acer Aspire 5745G

I have an Acer Aspire 5745 G. I am planning to upgrade the RAM from 4 GB to 8 GB.

Specs:
Acer Aspire 5745G 2010 model.
Core i5 430M processor, Acer ZR7 mobo, Intel HM55

Current working RAM: 2*2GB DDR3, 1066, dual channel (2*533)
Spec on the sticker: 2GB 2Rx8 PC3 10600S-09-10-F2

1. Should I get DDR3 or DDR3 L memory?


2. What frequency, 1066, 1333 or 1600

Which one of the following is the better choice:
http://www.amazon.in/Transcend-4GB-DDR3-1066MHz-Noteboo...

OR

http://www.amazon.in/gp/product/B00B5LOOJG