I love these lights they were on the expensive/midgrade side and the penetration is impressive to say the least. I have a couple of cheap LEDs as well and these are my favorite, at 690w they out perform my 1000w king led. No shade just facts...
these were clones and they actually grew bigger and stronger than their mom. Blueberry is a very forgiving strain, I have grown it several times (seems to always be a freebie with seedsman) and this pheno was the best I've seen it grew very vigorously and the stretch was very surprising. 6 oz's that's Damn good for a free seed.
Right on, I used to use fox farm but after some studying I decided that coco would better suit my needs. I would like to try organic living soil, I've seen some pretty awesome results from that.
I find the g8 has some really nice penetration through the canopy. Do you use the 90w bloom booster? The specs are unreal for a 90w UFO as far as ppfd.