ya i’ve gotten some shock from going from fluoro straight to cmh. they are deceptively intense.
back when i had gavitas i was reading a lot of their material about the science. one thing that stuck with me was the way they spoke about total photon absorbsion per day (they called it daily light intake or DLI).
the idea is to equalize the DLI from the 18 hour veg cycle to the 12 hour flower schedule to minimize transitional stress. lower light intensity for the longer days = higher intensity for less hours per day. i don’t remember the exact recommendation, somewhere in the 40–60% range veg:flower. it fits with the old ways of vegging under 4’s or 6’s and bumping to 1k for flower.
the dimmer function worked really well on the gavitas ime. i ran them at 60–75% most of the time to keep proper intensity at the canopy level with my low ceilings. grew awesome nugs that had great resin and complex full spectrum cannabinoids and terpenes (scored as high as 31% TAC and had a couple plants hit 3%+ thcv under artificial light!).
with the cmh i always start them really high off the plant for the first few days to harden them off if transitioning from a weak veg situation.
lately i’ve been vegging in the flower tent so i just veg under one light and then turn on a second one for flower. no hardening off needed so far w that technique.
back when i had gavitas i was reading a lot of their material about the science. one thing that stuck with me was the way they spoke about total photon absorbsion per day (they called it daily light intake or DLI).
the idea is to equalize the DLI from the 18 hour veg cycle to the 12 hour flower schedule to minimize transitional stress. lower light intensity for the longer days = higher intensity for less hours per day. i don’t remember the exact recommendation, somewhere in the 40–60% range veg:flower. it fits with the old ways of vegging under 4’s or 6’s and bumping to 1k for flower.
the dimmer function worked really well on the gavitas ime. i ran them at 60–75% most of the time to keep proper intensity at the canopy level with my low ceilings. grew awesome nugs that had great resin and complex full spectrum cannabinoids and terpenes (scored as high as 31% TAC and had a couple plants hit 3%+ thcv under artificial light!).
with the cmh i always start them really high off the plant for the first few days to harden them off if transitioning from a weak veg situation.
lately i’ve been vegging in the flower tent so i just veg under one light and then turn on a second one for flower. no hardening off needed so far w that technique.