First off - Loganj - thx for the kudos.
Hey Jim and Bang Guy - I've looked into the LED
solution - I think we have to wait a bit for higher intensity units to be available. The Spectrum is there (as jim pointed out, but they can be even of smaller wavelengths - i.e. hotter K
's), in fact some Blue or white Light LEDs are in the 7000K to 10,000K temp range. But the output of these units is still very low in comparison to the level of light amplitude provided by a 175w MH
I think we would need 1000's not 100's of these to even come close to the required output, not sure, though an experiment may be in order (yes Jim?
I think our hope for this one lies in this company as they are on the fore-front of high intesity LEDs. They do manufacuter LED
arrays but still their output I think is very low.
Note the color temps for some of these (though I'm not sure about the CRI - Color rendering index) but surely the peak is in the right place. As a note for Bang Guy who was pretty interested in this, as you can see, LED
's have no heated element, in fact they generate photons electronically and give off very little heat as Jim mentioned and yet their light output is measured on the Kelvin scale.
I've been watching for ways to get the extrodinarily high light output from LED
's. Someone, a while back posted a reference to an article on this and I quickly did some research on it but only found theoritical stuff and forecasts for the next 5 to 10 years.
Anyway - like this thread - unfortunately, work beckons - chat soon.