Oh yea yea yea... Good thinking, ****.
Yes, LOWER wavelengths of light would work better, when I sit my lazy ass down and think for a change. Lower wavelength, higher frequency. Think ultraviolet light (which explains why sunlight is best). The idea behind solar panels is high energy light causes electrons to "jump" from orbital to orbital in some specific atoms within the solar panel. When electrons come back down from a higher orbital to a lower, they release "energy" so to speak. And that's what your watch harnesses, I don't know off the top of my head solar panels in depth.
Anyhow. Check out howstuffworks.com. Great friggin site. Seriously. I'll go read up solar panels tmo, cause I got no time today- this homework crap is killing me.
And now I am brought to my second question. Best way to imitate high energy light??? I live in Michigan. It's been clouds, rain, ****** weather the past week or so... All I know is... It better clear up before the Wolverines tear OSU a new one this weekend...