You may scoff due to old verbatim inaccurate info, but Aluminum foil shiny side out and spray glued onto cardboard panels, its better reflective wise that say ultra white flat paint, or mylar emergency blankets, or cheap diamond mylar ive tried from certain dollar stores its also what i cover my pots in.
As for lights i would of built them at less power/light than what i did… yeah less
So each cab side is 3sqft i originally equated out that i wanted to build out to a level of around 35ish-40w/sqft using my old lights as reference, which for me when choosing the xlg-100 driver worked out to be 100w stock or up to 120w when over driven if i really needed or wanted it.
But for my small space and growing consistently autos its just too much and ive been running at around 60-75w instead which is 20-25w/sqft with the eb2’s.
So knowing that i could of reduced my strip count per light from 14 down to 10 which is currently what im running anyways or even less strips like say 8 of them if i was over driving them from nominal levels, and i would of went with a xlg-75 driver instead of the xlg-100 also with the drivers in all honestly the AB series drivers with the added dimmer ability isn’t needed as the plain A series drivers with the built in IO current screw is all i would of needed, would of saved about 30% doing that, but its all a learning experience.
Also maybe a color temp change on the strips to be in the 4000k range instead of 3500k but that’s just a preference thing and just me.