Illumination feat calc question

[NITROMonkey1000]

Basically ther's this feat of a person illuminating a large area for many years so i am wondering what timeframe would be most apropriate for this formula:
E = Solar flux at the surface x Area being illuminated x Time of illumination

 

[Greatsage13th]

Basically ther's this feat of a person illuminating a large area for many years so i am wondering what timeframe would be most apropriate for this formula:
E = Solar flux at the surface x Area being illuminated x Time of illumination

Follow the formula from here:https://vsbattles.fandom.com/wiki/User_blog:Drite77/Lighting_up_Planets

after that times it by how many seconds have passed.

 

[Suigetsuhyugs]

In this website you should use the value per second as attack potency unless there is a specific reason why you are using the whole timeframe.