LED light distance from canopy

I run cbx3590 cree cobs in optic 1 xls and can’t go closer than 13”, I have a 300w mars hydro tsl-2000 and shes about 8-6“ away from tops right now with no heat or light stress...iv had my 1000w xxxlmagnum hood 3-4” away from tops with no issues as well......heat manegment and air movement go a long ways

Hands down as far as quality the cobs dont have the coverage but their bud is always alway always better quality, theirs visually more crystals Waymore stickier buds, and. Flavor and aroma beat the dog shit out of my quantum boards and my 1000w hortilux buds.....they also finish up a very consistently 2-3 weeks faster than the rest, even when running 1 strain