Typically you want to have about 30-40 true watts per sq ft if you have a high quality LED, which ES is! It is a little low on power for all 8 sq ft, but you should be fine if you properly manage your light height. Plant number is kinda irrelevant because it is all about canopy coverage and space filled. If you are vegging for longer, you can use less plants, shorter veg times more plants. I would recommend 3-4 plants for Veg and then cut that number down to 2 for flower. 4sqft per plant will give you lots of space to let them grow out and help maintain a stable environment in your tent. happy growing!! š