They are not room darkening - you still see the light and they are not lined. I bought these as my nephew was coming to stay with us.  
You’ll need to line them with a darker curtain. 
The fabric is soft and very pretty so that makes up for the light coming in. 
I bought 1 pair but I think I’ll need to double them up to make it look fuller plus went to Joanne’s fabric to buy liner to sew on the back of them. 
Bought 95 length and cut 5 inches off. 84 was too short. 
At the end I could have bought more expensive curtains as it all came out to 400 for the window!