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Re: [APD] LED lighting



Try  
http://www.aquaticplantcentral.com/forumapc/ 
showthread.php?t=1009&highlight=LED+lighting
for a long series on this subject.

On Tuesday, February 7, 2006, at 03:20 AM, Stuart Halliday wrote:

> I've seen a few white LED strips on sale in my local Maplin hardware  
> store
> and these looked *very* bright and I was wondering if these could be  
> used as
> a low heat equivalent replacement for fluorescent tubes?
>
> Ok, they're not going to be cheaper than tubes. But they will last for  
> years
> (100,000 hours (20 years)), don't fade and will be cooler and more  
> efficient
> than tubes. Plus they are of course very controllable.
> (By mixing white with red and green you could control colour  
> temperature
> exactly to simulate sunrise-sunset colours for example).
>
> Has anyone here, experimented with using ultra-bright LEDs yet in  
> tanks?
>
>
> http://www.maplin.co.uk/Module.aspx?TabID=1&ModuleNo=45981&doy=7m2#spec
>
> These LEDs have a 5200K colour temperature, but replacing a few white  
> ones
> with green, red or blue LEDs would easily adjust the overall light  
> colour.
>
> This strip in the link says its light output is 420 candelas, any idea  
> what
> a basic tube is?
>
>
> Some of the new high power LEDs have a 120d viewing angle and are very  
> very
> bright.
> http://www.omc-uk.com/leds/datasheets/Power%20LED.PDF
>
> IIRC polarised light source penetrate deeper into water too...
>
> -- 
> Stuart Halliday
> _______________________________________________
> Aquatic-Plants mailing list
> Aquatic-Plants at actwin_com
> http://www.actwin.com/mailman/listinfo/aquatic-plants
>

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