When to turn up the power

Do you up the light power when the pistils show up. Can go up to 900 or so umols but dont want to burn anything.

What’s your medium if it’s coco coir you can easily get into the 1300s if you keep the medium moist otherwise roughly1100 should be your limit

Soil how big for the pistils to be before full light

For clarification, that’s not the way it works

Ok about 24 days in for my autos they are showing signs of flower nice big plants. Is now the time to lower the light from 30" to 24" . thanks for the help.

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Good luck try to give us more details and pictures for next questions will help a lot to understand your issues and questions better