Please be patient with my questions in this thread as I am trying to ease myself into the world of LEDs.

Have you decided to go with LEDengin with both your red and blues? and if so did you say they're both rated at 661 nm?
SunnyD Reviewed by SunnyD on . budderlvr Modular LED Project I am working on a new modular LED grow light. This thread will be a diary of my experience as I work through some of the many design problems. Currently I am at the circuit design phase. Although I do not want to reveal too much of my design at this point I will provide some information that has guided my decisions. The LEDs I will be using are from Lumiled. I am using the Luxeon K2s for the blue spectrum, and Luxeon IIIs for the red spectrum. The ratio of RED to BLUE (I will call Rating: 5