Growth is looking good, seedlings are turning into beautiful small plants, driver was dimmed at 100% so we're pulling 320 watts (raw from the wall) for the entire 2x4 space, in terms of ratio that gives me ~53 watts per plant, you might find it low, but I've had great results so far. I have added some Blumat irrigation carrots in order to give the plants a continuous source of water. I did notice in the past that these carrots do help a lot, and it allows me to delay my hand-waterings.