The LED grow light distance above the clones differs from the height required for seedlings. With clones, they will need intense light to begin. Depending on the power of the light and maturity of the plants, this could vary quite a bit between 14-36 inches from the top of the plant canopy.

How do you tell if grow light is too close?

The first signs look like thin outlines on the outside of the leaves, so if you catch this quickly you will have a chance to avoid further damage. If some of the leaves start curling up, it might also be a sign that the plant is too close to the light. Good ventilation usually also helps with this issue.

How far should HPS light be from clones?

Unlike LED grow lights, HPS lights produce more heat, so growers need to know how far to put HPS lights from plants. The HPS distance from seedlings should generally be between 10 and 14 inches from plants.