The chart reads 25 DLI for week 3.
Remeber this is just a tool to be used by watching you your plants.
This chart was made by someone else, now what I do is hammer my plants with 45-60 DLI within the 3rd week.
What this does is keeps plants shorter and stockier this is how I prefer my plants.
If your going to have air issues or humidity issues then you want to give your plants a bit of stretch to avoid bud rot.
The shorter the plant, when healthy, will lead to big thick buds due to shorter nutrient pathways.
A half inch node spacing is fine.
Week 5&6 on autos your going to stretch, or the 2 weeks after you flip photos.
So hammer them with light to control the stretch at this time.
Dial back once you see fox tails in late flower to 45 DLI and go from there.
I haven’t grow enough to make my own DLI chart but I likely will in another year or so.
Ps your welcome