In Alan Wake 2, fuses are items used to restore the functionality of an electrical panel. As you progress through the storyline missions, you'll occasionally come across broken panels. Repairing them not only restores the lighting but also helps you progress further. In this guide, you'll learn where to find all 4 fuses.

Fuse in the "Witch's Hut" Location

You'll find this item during the "Return 2: The Heart" mission. 

Approach the hut and head west. There, you'll see a wooden bridge to cross. You'll end up in a tourist rest area. One of the boxes will contain the fuse.

Fuse in the "Kalevala Knights Workshop" Location

You'll need to search for the fuse during the "Return 3: Local Girl" mission. Head to the workshop. After entering the correct door code, you'll enter the Breakroom.

On the table next to the save system, you'll find the required fuse.

Fuse in the "Valhalla Nursing Home Basement" Location

You'll need the fuse during the "Return 5: Old Gods" mission. Go to the nursing home and descend to the basement. Go northeast in the room and find a corridor leading to a closed pantry. Explore the red box with a coded lock and go to the nearby room. Read the notes hanging on the wall. Among the information, you'll find the password for the box "273".

Enter it and retrieve the fuse.

Fuse in the "Sheriff's Station" Location

You'll need to find the fuse during the "Return 6: Scratch" mission. Go down to the station's basement and head towards the morgue. You'll hear gunshots; run to the room where they're coming from. In the room, you'll see Casey. Talk to him, and he'll give you the fuse.