We did quite a bit of research, and found that an approximate ratio of 6:1 660nm red to 460nm royal LEDs is excellent for macro algae growth. These will have 90 degree or 60 degree optics, and dimmable. They blow any flourescent fuge bulb away hands down, and use even less power, a miniscule 9.5 watts! We will have these ready in about 2-3 weeks, and asking $79 shipped each. These are available for pre-order now!