There decent in size, I do 4 plants per 1000w. Use to do 1 plant per 1kw in 20-25gals so these are small lol. I have no clue how much each plant is getting because each one has specific drippers on them for how much feed there going through. Some plants have 2x 2 gal drippers, some have one, and some have 2gal plus one etc. I go through about 60 gallons of feed a day in flower. I use a cycle timer connected to my pump that's hooked up to my feed lines, spaghetti line run to each pot, pretty simple auto water setup.