Subbed!
Finally...! I was already curious when you planned it. Now I am even impressed! Looks and sounds like a delicious setup and I'm curious how the girls develop with so much light. Certainly they will become impressive..
BTW,
you could make markings for different intensities around the dimmer poti. So you can dim it and turn it back later without having to measure again. You could make a few points with a felt-tip pen too or you change the knob against a dimmer knob with scale.
I've used this ones below for my latest builds but because the most potentiometers have only a 300° rotation range the poti's adjustment range goes only from 15 to 100 but in reality the lowest setting of a HLG driver is 6,5-10%.
But anyway, I've attached them so that they show 100% when they are fully ramped up. Dimming I do only for inspection purposes or if I want to compensate for height differences but to have a scale makes it much easier.
View attachment 4186043
Here's a 10pack alu-knobs with scale for 5 bucks and they are also available in different sizes.
https://www.ebay.com/itm/10Pc-Knob-...937407?hash=item23985ab77f:g:BMcAAOSw~kJaaUxm