Are these two Ram sticks ok for duel channel

[Jissme]

I know I need the same speed on the two sticks of Ram for duel channel, however I am not sure if these two are the same. They are basically off by one number/letter, and the brand, but I'm hoping it is superficial.

Can these two sticks be used together for duel channel?

4G 1Rx8 PC3 12800U 11-12-a1 Hynix
4G 1Rx8 PC3L 12800U 11-11-a1 Ramaxel

Thank you.

 

[theog]

Best to use two sticks the same.

 

[Jissme]

Thanks!

 

[rvcjew]

PC3L is a standard that lets it run at lower than normal voltages so they would not run at same voltage if its a laptop they should both be L probably (depends on laptop)