Magic lamp upgrade question

Hello, so i hit 76 today and i saw this upgraded magic lamp for players 76 on 3rd class. I did that but i have no clue what it does.
Does it use sayhas grace potions to upgrade the lamp ?

 

You need 10 normal + 5 sayha grace to get these "upgraded magic lamp".

 

is it worth to do so ?

 

Only if you are lucky to get a upgraded purple or red lamp, then it will give a huge amount of exp.

 

yes it depends
I don't always use upgrade lumps cuz i'm very unlucky. I get mostly the 4th grade lamp, so it's better to use normal lamp in this case.