Lighting area

Okay the general consensus for horizontal is:
400 = 3x3
600 = 4x4
1000 = 5x5

Personally i don really agree but thats aside. Im wondering how these numbers translate in a vertical donut.

Sir KK

Anyone?

Sir KK

Imo
400 3ft- 4ft
600 3.5ft-4.5ft
I have never ran a 1k but i would run it at 5 to 5.5