jim rozen wrote:

The only comment I could make about this is, you might consider
making the next one with an amber or yellow LED. Reason being
that the human eye's response peaks around that wavelength.
You get a lot more bang for the buck that way, in terms of
the number of neurons you fire in the subject's brain, vs
the number of watts you burn in the LED.

Jim

Jim. Way iremember it the human eye response peaks at 550 nm
That's pretty Green.
...lew...