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Seedling light height?
massivetidsanswered grow question a year ago
Hello Fletchy, leave the lamp on this distance is my advice. During the vegging phase roughly 40 cm and during flowering 30 cm. You can always test if the lamp is too hot with your hand. Keep your hand under the lamp at the same distance that you want it from your plants. Keep your hand here for 1 minute. If it does not feel unpleasant warm then your plants will be fine! Enjoy your grow!
Storkanswered grow question a year ago
For more accuracy, I will say to download the PPFD meter
If is autoflower 500-700 PPFD if It is photo 500-1050
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