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Re: [APD] Re: Lighting temps



Predominantly blue but loss of blue didn't affect total
output?  So the loss of the blue end was just a color
shift? That's one of the complaints I've most often heard
about halides. Holds for fluorescents, too? 


sh
--- "whenshaw.freeserve.co.uk" <w at whenshaw_freeserve.co.uk>
wrote:
> Hi,
> 
> The answers to your lighting questions can be found on
> Sanjay Roshi's web site. I 
> don't have the URL, but if you do a search on Sanjay and
> lighting, it should come up. 
> He has done hard research on lights( metal halide) and
> the amount of light given out 
> when used with different ballasts. The outcome is very
> interesting. His work was done 
> with marines in mind, but it equally applies to planted
> tanks. The surprising results 
> were that the higher temp of the bulbs gave out
> predominantly more blue, which 
> faded over time i.e. less blue light was emitted after 10
> months, however the overall 
> performance of the bulbs light output was relatively
> unaffected and as such wasn't 
> worth replacing. I recommend you visit his site and see
> for yourself.
> 
> Tim Henshaw
> _______________________________________________
> Aquatic-Plants mailing list
> Aquatic-Plants at actwin_com
> http://www.actwin.com/mailman/listinfo/aquatic-plants
> 

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