Flowering

Yes it would. My OG Kush grow was an LED/HPS growand I pulled 20oz

Yes I agree with organoman any extra light you can give your plants will up your yields though underneath them ? Erm yes you will increse the under growth but most of your yield is going to come from the canpoy so I would direct most light there. further to that adding more light will conduct more heat and as buds get larger and the plant matures humidity could become and issue in a small space. best of luck anyway im sure youll be fine :)

Yes, tremendously. There is little point to having a light on the ground, cannabis plants can only use light that reaches the upper surface of the leaves. Good luck with your yields, but as they say, "don't count your chickens before they hatch"! I would also be opening the wings of the reflector out much wider, so the coverage extends all the way to the sides of the plants and turning the light around 90 degrees too. Cheers, Organoman.