Mars hydro Fc4800 hanging distance and power %

My recommendation would be to learn what is required for the photosynthesis process to occur and then use that knowledge to decide how hard you want to push your plants. The 9 cardinal rules of plant growth are all required to function in harmony, if one part of the process is reduced to 20% production, the entire plant's production is reduced and limited to 20%. Photosynthesis not only depends on how much light there is but also the temperature within the leaf itself, with most of the temperature removed with LEDs make sure the top of the canopy is reaching temps of 82-85 for optimal growth. Manufacturers are required by law to give you the safest distance without damage to plants and tend to air on side of caution. The number one enemy is the heat but you can always blow a fan to get rid of most of that radiation. The point of having dimmers is to give the light the option of being in a fixed location (top of grow tent) rather than having to raise and lower all the time. Keeping your grow light at recommended height is 25% seedling, 75% veg, 100% flower. Pretty standard across the board. Good luck, she is a beast.