Day 50 indoor- Raise the light for the last time

Day 50 indoor- I had to raise the light right up to the topmost spot. The light is now about 11” from top leaves to the light. I decided to raise the light because the leaves are just starting to curl which could be a sign of too much light too close. This is the highest the light goes though so don’t I need to switch to flowering soon? Back to the soil guys. Lol