HI, you got to test it, until you know the distanesin a new setup, if the nodes close together, your light is to near... if the nodes are to far you are to high, if the nodes have the right distance you are right....... what is the right distance? on smallplants they should be around 1.5 cm....its difficult to describe, if a plant nods are very close the light is to near. You should always see the branches and before stretching in flower nodes most time around 1,5-3 cm distance....