Results 401 to 410 of 595
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04-08-2008, 05:06 PM #401Senior Member
LED grow lights... input please.
Oldmac Hi! yes some Leds are rated in kelvin look here:
LedEngin, Inc.
I'm sure one could order a better color temp 2700k/6500k
:rasta::rasta::rasta:
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04-08-2008, 07:32 PM #402Senior Member
LED grow lights... input please.
Hey veggii,
Your right, in the last year we are starting to see Kelvin and terms like "warm" and "cool" white applied to LEDs.
Unfortunately for me the warm whites I picked to use for an experiment did not work well and had me confused......untill I saw the device tested @ the LED museum and saw the spectrograph. A real neg spike at the blue range and min far red. It was makeing most of it white in the orange amber green ranges, not the broad curve of a fluoro.
They have made and will continue to make great improvements in high power LEDs especially the whites that currently have so many applications. Spectral analysis is a must.Keep it civil please, gentlemen. -StinkyAttic
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04-09-2008, 08:31 AM #403Member
LED grow lights... input please.
Cree, Inc., a leader in LED solid-state lighting components, has announced that Guangzhou Multi-Cell Semiconductor Lighting Technology Co., Ltd. (Multi-Cell) is installing energy-saving, solar-powered streetlights based on Creeâ??s XLamp XR-E power LEDs. Multi-Cell is demonstrating its new XR-E LED-based streetlight product with a 20-light project in Guangzhou, China.
NEMA - Cree XLamp® XR-E LEDs Chosen for Solar-Powered Streetlights
Not spamming here... just thought I'd drop some info... Always figured that when they started replacing street lights with LEDs things would start getting very interesting for growers. GO CREE.
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04-09-2008, 07:30 PM #404Senior Member
LED grow lights... input please.
those flow magic inline leds are the same design I made.:wtf:
Agro LED Inline
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04-14-2008, 01:17 AM #405Senior Member
LED grow lights... input please.
Hey check this out. i think your right. the bottom seems to serve as the oxygen and carbon dioxide exchange area, and photosynthesis on the top.
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04-14-2008, 01:33 PM #406Junior Member
LED grow lights... input please.
I got my Procyon 100 last Monday. I'll post pictures of some of my ladies as soon as I get my kid to get off the bong and take a picture.
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04-14-2008, 04:25 PM #407Senior Member
LED grow lights... input please.
hey melskid-
is there anyway you can take apart your procyon and take pictures of the circuitry? ive been dying to see it but can not find any resources online about that. i think there it 4 screws that take the two side panels off. then you should be able to get inside. im just trying to get an idea how the procyon has its power management hooked up.:rastasmoke:
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04-16-2008, 01:06 AM #408Junior Member
LED grow lights... input please.
Originally Posted by physicsnole
Took it apart and snapped some pics.. Could not take it all the way apart due to some technical difficulties, meaning the led light circuit board was glued to the aluminum heatsink so could not pry it off and take a look at the back of the board.
Now... Question is where do I put the pics? Do not see where I can include it here.
When I reassembled it did break off one piece but plugged it in and still works. Not sure what the piece was for, maybe a thermostat? Probably can't call them up and say "hey, lookie what I broke, can you fix it?"....
Back on topic.. Very very nice buds SnS.... :rasta:
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04-16-2008, 09:56 PM #409Senior Member
LED grow lights... input please.
Whites work just fine. You can get any color white you want in an LED, and there are many that are rated in kelvin. If you carefully read the specifications for a white made by a reputable manufacturer you will see that like other forms of lighting, LEDs have a dominant color, or color temperature, and a spectrum of others. This spectrum is the only reason to frown on whites for plant lighting. It is wasted energy, like the energy that is wasted in an HID light. That doesn't mean the plants won't grow, it just means that the most desired color is not the dominant one. Most people believe that colored LEDs don't have a spectrum, but that's far from true. It's just that the spectrum in single color LEDs is not as varied as it is in whites. For example a 660 nm LED has a spectrum from about 620 to 700, and it is wasting energy in the same sense that whites do.
One thing that we can do with LED whites that we can't with other forms of white light is change the color. Again look at the specs, and notice that the LED is rated to be any color from, for example 3000K to 10,000K. Again this is only the dominant color, and it all depends on what kind of current you supply, plus a few other less significant factors.
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04-17-2008, 01:57 AM #410Junior Member
LED grow lights... input please.
Much as I don't like those sites, here they are.... gotta like being a noob..
Pictures of Procyon 100 innards
Hope you don't mind me posting this in your thread SnS...
On one of the pics of the board (#1 I think) put a tag on the thing I broke. Pic was taken before it got broken so if anyone has ideas on what i can do to fix it that would be good. It is the thing with two wires attached to it.
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