I have seen a few examples on here of boxfill calculations but not one where the box is directly attached to a light. So if possible please verify if these calculations are correct:
3 14/2 nm romex cables coming into the box = 3 * 2 * 2 + 1 (grounds) = 14
Lamp Yoke = 4 = 4
The lamp head itself is what is throwing me off. It has two screws that hold this lamp to the box but doesn’t really have a strap or yoke like an outlet or switch but instead is like the cover to the box with a light on it. I plan to add one more 14/2 Romex to this box and pigtail the whites together so there is no double wire for single terminal as shown. However I was recently told pigtails don’t impact the box fill calculation so I should Be good on that front. Just need to figure out that lamp aspect and then add in these extra conductors from the wire to see if I fall under the 20.8 cubic in limit of this box.