Chad.Westport said:

seedlings and clones, 24" above canopy. You can do an 18/6, 20/4 or 24 hour light cycle.

Veg I would try and move it to 18" above the canopy. You can do an 18/6, 20/4 or 24 hour light cycle.

Flower I would try and have it 12" off the top of the canopy IF this is an air cooled hood unit. You want a 12/12 light schedule for this stage.

These are all my guesses, not taken from a manual. Does the manufacturer of your light have recommendations?

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