Lamplighter? I hardly know 'er!
Anyways, very good art and music, I liked the atmosphere a lot! My only critique would be that the core game loop is a bit clunky, right now there are almost two objectives: survive the time limit and light as many lamps as possible. This can create a bit of a weird situation, because I think I lit more lamps on my very first run where I had no clue what I was doing and just sprinted to the right lighting every lamp along the way than in my run where I was actually cautious and survived the time limit.
I wonder if it would be fun to remove the time limit and instead place the focus on lighting as many lamps as possible before you inevitably perish, with the game becoming more challenging the further you progress to the right. This might better complement the slow and methodical gameplay style the game seems to want you to take.
Good job, I liked it a lot!