Please cancel my old post, it's full of error.

Stupid site that contradict one another ><, i'll search some affidable source.

Now i've read on wiki that 93 lumens of sunlight ~ 1 W, but that's shit, because
light irradiate 100W/m^2, and 100*93 = 9300 lumens /square meters (actual sunlight irradiance is between 40k and 100k lumens/square meters) ><

It's madness.