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Re: Outdoor arch light

PostPosted: Sun Jul 21, 2013 3:46 pm
by Forrest747
bdosborn wrote:How about a 12V LED light show? I'm thinking this would be cool on the arch or underneath the tear like Rocky did:

Weatherproof RGB 12V LED Tape

12V LED Controller

Image

Bruce



Oh i like that one. I also found out that the bugs out in teh wild can see LED lights. I guess its teh domestic ones that cant.

Re: Outdoor arch light

PostPosted: Fri Jul 26, 2013 2:19 pm
by jstrubberg
BrwBier wrote:
Wolffarmer wrote:I wonder if those attract a better class of bugs.

sheeeeech

Randy

LED's do not produce UV light. Bugs see UV light only. So, sorry no bugs of any quality. :shock:
Brwbier



They do produce UV, just not in the most dangerous bands.

http://www.nouvir.com/index.cfm?ref=90200&ref2=9

Re: Outdoor arch light

PostPosted: Fri Jul 26, 2013 10:18 pm
by Bogo
jstrubberg wrote:
BrwBier wrote:
Wolffarmer wrote:I wonder if those attract a better class of bugs.

sheeeeech

Randy

LED's do not produce UV light. Bugs see UV light only. So, sorry no bugs of any quality. :shock:
Brwbier



They do produce UV, just not in the most dangerous bands.

http://www.nouvir.com/index.cfm?ref=90200&ref2=9

Actually it all depends on the LED. A monochrome green or red won't, but a white one may. Most white LEDs are really a UV LED shining on a phosphor that then changes the UV light into visible light. Some of that UV light gets past the phosphor. There are also LEDs that just emit UV light.

Re: Outdoor arch light

PostPosted: Mon Sep 16, 2013 12:53 pm
by JuneBug
Bogo wrote:
jstrubberg wrote:
BrwBier wrote:
Wolffarmer wrote:Actually it all depends on the LED. A monochrome green or red won't, but a white one may. Most white LEDs are really a UV LED shining on a phosphor that then changes the UV light into visible light. Some of that UV light gets past the phosphor. There are also LEDs that just emit UV light.


Would you translate this into what would make a nice (relatively warm) reading light? Some LED lights just don't seem like they are conducive to a positive reading experience and would cause eye strain.

Re: Outdoor arch light

PostPosted: Mon Sep 16, 2013 3:22 pm
by GuitarPhotog
I use these LED eyeball spots for reading. They have a good color balance that isn't too blue for comfort.

http://tinyurl.com/mdul9l4

WEST MARINE
LED Surface Utility Eyeball Light

<Chas>
:beer:

Re: Outdoor arch light

PostPosted: Mon Sep 16, 2013 4:55 pm
by bdosborn
JuneBug wrote:
Bogo wrote:
jstrubberg wrote:
BrwBier wrote:
Wolffarmer wrote:Actually it all depends on the LED. A monochrome green or red won't, but a white one may. Most white LEDs are really a UV LED shining on a phosphor that then changes the UV light into visible light. Some of that UV light gets past the phosphor. There are also LEDs that just emit UV light.


Would you translate this into what would make a nice (relatively warm) reading light? Some LED lights just don't seem like they are conducive to a positive reading experience and would cause eye strain.


Look for a color temperature of 2700K for mostly yellow colored light. 3500k will be white with a slight blue tinge. Anything above 3500k will be noticeably blue. Everyone has a different perception of LED light colors so YMMV. The inevitable gotcha is that while most people prefer the lower temperature colors, the higher temperatures are more efficient. Another measure you can look for is color rendition index (CRI). The higher the number, the better and more realistic colors look. Sunlight is 100. I look for a number higher than 80 but it can be hard to find the CRI. Most of the Chinese manufacturers don't publish it ( for obvious reasons).
Bruce

Bruce