Alienware 17 R2 low lights fix

Hello,

I recently purchased an Alienware 17 r2 or the new 2015 edition. It is an awesome computer and one of my favorite features is that you can edit the lights that shine when you touch the touchpad or keyboard. When i first got it the lights they were amazingly bright but 2 days ago they became very low. I am wondering if theres is something that changes their brightness because i bought this computer 4 days ago and if its is already damaged i'm really mad. Please help me fix this.

Thank you,

:)