MR16 LEDs for Landscape Lights
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Posted by Jeff Volp on July 1, 2008, 12:02 am
Please log in for more thread options 2.6W warm-white unit with 9 surface-mount LEDs that was linked at the very beginning of this thread. It outputs a smooth wide-angle beam, which is perfect for these lights. However, like the 48-LED unit, it doesn’t do a good job bringing out the warm red tones in the crushed rock. It is also not quite a bright as the 20W halogen. But for an energy savings of 87%, it does a very impressive job. Jeff | ||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Robert L Bass on July 1, 2008, 3:37 am
Please log in for more thread options Jeff, I've been looking at various colored LEDs for use on my motorcycle. There now are extremely bright LEDs available in a multitude of colors. Most of the "white" LEDs I've seen are actually a pale shade of blue. If you want to bring out the warm tones in the brick, try adding a supplemental string of rose or even red colored LEDs. If you use red, select a lower power. You don't need much. A few manufacturers offer strings with adjustable brightness and even variegated colors. The options are surely going to increase with time. -- Regards, Robert L Bass ==============================>
Bass Home Electronics
4883 Fallcrest Circle Sarasota · Florida · 34233 http://www.bassburglaralarms.com Sales & Tech Support 941-925-8650 Customer Service 941-870-2310 Fax 941-870-3252 ==============================>
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Posted by Jeff Volp on July 1, 2008, 10:24 am
Please log in for more thread options That is a good suggestion, but not really feasible for this application.
These are standard 12VAC landscape lights that accept a single MR16 bulb. I did choose the "Warm White" versions (3000-3500K). While the light looks good indoors, it must have a narrow spectrum. The red crushed rock looks a grayish yellow. However, the rock wall itself does have its natural color. For sheer brightness, I have been very impressed by the CREE units. Jeff >
> I've been looking at various colored LEDs for use on my motorcycle. There > now are extremely bright LEDs available in a multitude of colors. Most of > the "white" LEDs I've seen are actually a pale shade of blue. If you want > to bring out the warm tones in the brick, try adding a supplemental string > of rose or even red colored LEDs. If you use red, select a lower power. > You don't need much. A few manufacturers offer strings with adjustable > brightness and even variegated colors. The options are surely going to > increase with time. | ||||||||||||||||||||||||||||||||||||||||||||||
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Posted by B Fuhrmann on July 1, 2008, 6:41 pm
Please log in for more thread options "Jeff Volp" wrote ...
> That is a good suggestion, but not really feasible for this application.
> These are standard 12VAC landscape lights that accept a single MR16 bulb. > I did choose the "Warm White" versions (3000-3500K). While the light > looks good indoors, it must have a narrow spectrum. The red crushed rock > looks a grayish yellow. However, the rock wall itself does have its > natural color. By nature LEDs are narrow spectrum devices. There are a few tricks used to create the wider white band but it isn't all that good. Wikipedia's LED article discusses some of them. http://en.wikipedia.org/wiki/LED Here are some spectra that a person took from several different white LEDs -- Bill Fuhrmann | ||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Robert L Bass on July 1, 2008, 9:22 pm
Please log in for more thread options
> That is a good suggestion, but not really feasible for this application.
> These are standard 12VAC landscape lights that accept a single MR16 bulb. I > did choose the "Warm White" versions (3000-3500K). While the light looks > good indoors, it must have a narrow spectrum. The red crushed rock looks a > grayish yellow. However, the rock wall itself does have its natural color. > > For sheer brightness, I have been very impressed by the CREE units. If they're not too hot (they shouldn't be), you might consider placing a glass filter over them. Gels work fine indoors but they fall apart after a rain. -- Regards, Robert L Bass ==============================>
Bass Home Electronics
4883 Fallcrest Circle Sarasota · Florida · 34233 http://www.bassburglaralarms.com Sales & Tech Support 941-925-8650 Customer Service 941-870-2310 Fax 941-870-3252 ==============================>
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> The final LED MR16 sample for the landscape lighting arrived. This is the
> 2.6W warm-white unit with 9 surface-mount LEDs that was linked at the very
> beginning of this thread. It outputs a smooth wide-angle beam, which is
> perfect for these lights. However, like the 48-LED unit, it doesn’t do a
> good job bringing out the warm red tones in the crushed rock. It is also
> not quite a bright as the 20W halogen. But for an energy savings of 87%, it
> does a very impressive job.