Day 8: first rainy and cold day (24C) relatively. I decided to put it a day protected under my grow light until the sun comes out again.
Day 9: back in the sun again.
Day 10: Jack can now spend the nights in my Homebox Q60 under a 240W LED light.
Day 11: Already seeing more growth now that it has a 4/20 light schedule
Day 12: The 20hrs light schedule really seems to double the growth every day.