430nm leds

[bennyss]

Hi,
Chlorofyll A is absorbing high light spectrum in 660nm and 430nm.
Is it will be more efficient to use 430nm led with 660nm led.?
What is the ideal ratio?
We know that the light energy of 430nm is almost 50% higher then the 660nm so why isn’t be better to use the 430 nm led"¿

[SantaMonica]

I have found that only 660nm (red) works just as well as 660+430, and maybe better for green hair algae attached to rock. I will show why, with a diagram and description, soon.

Also, red is easier for the eyes to look at, compared to red+blue (pink).