Here are some growth shots from the first four days. I'm really happy with how well it is growing.
After 1 day, 200ml of Mercer of Montana phyto in the left flask, 20ml in the right. Each picture taken at about the same time at night, with the phyto base lights off so the green can be seen:
After 2 days:
After 3 days:
After 4 days:
So I can certainly confirm that 6.6 watts of red/blue LEDs (four red for each blue) can grow Phyto.