I've been working on a "read only" webpage to try and do something like this. Basically just post actual grows THAT GO TO COMPLETION with different lights to save people hundreds of pages of reading (especially on journals that never finish) when they're trying to make decisions. I think hi-def pics would be a nice touch too. Right now I've only grown with one light so my page lacks depth but looks like I have two other manufacturers interested in letting me try theirs out so hopefully I can provide some useful comparisons but definately a few months away from being useful.This thread has got ridiculous with all the bullshit and arguments. Let's all just post pics of grows with details of LED used, weeks of flowering or vegging ,true watts used, final dry weigh in. Simple, no more arguments whether leds work or not, just good old fashioned "proof is in the pudding"
You should get a hold of Irishboy as he could add several completed LED grows to your project. I'd also try and contact SettingSun (not sure if hes on this site). There were a bunch of growers over at 420mag.com that had several completed LED grows each, you should have a much easier time finding completed LED grows over there than here (people are starting to switch from there to here because of sponsor issues or something). I'll try and find my bookmarks of them and get them to you.I've been working on a "read only" webpage to try and do something like this. Basically just post actual grows THAT GO TO COMPLETION with different lights to save people hundreds of pages of reading (especially on journals that never finish) when they're trying to make decisions. I think hi-def pics would be a nice touch too. Right now I've only grown with one light so my page lacks depth but looks like I have two other manufacturers interested in letting me try theirs out so hopefully I can provide some useful comparisons but definately a few months away from being useful.
My plan is to pick a very common medium (probably pro mix) common nutes (probably GH) and a common strain (hoping to have a good yielder) and grow with different manufacturers.
Any constructive suggestions are welcome.
Because the LED itself is inherently a semiconductor, it's performance (efficiency, radiant power, etc.) and service life is directly related how cool the LED semiconductor die itself is operated at. NO, you can't really tell how hot the die is by feeling the fixture or cabinet or even the heatsink. LED's are less efficient at producing light than HID- the LED efficiency comes about because the light that is produced is usable by the plant, whereas a significant portion of both the primary HID technologies, MH and HPS, is not, it is wasted. It is therefore be possible to use a lot less energy to produce an equivalent amount photosynthetically active light with LED.Why would you want an LED that requires a big fancy thermal management system? I thought the main advantage of LEDs is that they don't waste a lot of energy making heat. I'd definitely want to know how much of a unit's output is heat vs light.
So then the only 3watt "thing" about the grow lights on the market is that they are able to run it at 3watts for short 10 millisecond bursts during testing. I guess those that say they got 5watts can do bursts of 5 watts but are definitely not running steady during normal operation at 3w OR 5w.
The bottom line though, if I understand you correctly, is that AT BEST the grow lights use TRUE 1w diodes. How much they overdrive these depend on the cooling system of the light and the trade off that the manufacturer is willing to take between performance and reliability
There are a couple guys here that use Advanced LEDs but you may want to check out 420 mag as the company is now a sponsor. Grows are starting to show up there with good results.Hey ya'll.. new here! I have a question about LEDs. What about the 360w extreme led.. http://www.advancedledlights.com/products/NEW-%2d-360w-Extreme-Flower-LED-%2d-3w-USA-LEDs-%2d-11-Wavelengths.html
From what I've researched it seems the most legit per dollar. ...3w leds, cree leds, 11 wavelengths, 864w equivalent.
What do you guys think? Anything that beats that? I'd like to know because i'm buying one soon.
It is impossible to know unless you know which make and series of LED is in there and what die temp they are running them at. The same 1W die run at the same 1W power level will have less radiant output power when operated with a less efficient cooling system at subsequently higher temps. This is all in the LED die specification sheets.I have a 1 watt per light LED unit. How would I measure the dies to see if I have a cheapy or the good one like you are saying above?^^
Hey ya'll.. new here! I have a question about LEDs. What about the 360w extreme led.. http://www.advancedledlights.com/products/NEW-%2d-360w-Extreme-Flower-LED-%2d-3w-USA-LEDs-%2d-11-Wavelengths.html
From what I've researched it seems the most legit per dollar. ...3w leds, cree leds, 11 wavelengths, 864w equivalent.
What do you guys think? Anything that beats that? I'd like to know because i'm buying one soon.
You'll be impressed with the advanced led lights. I'm using their stuff and the results are outstanding. Give them a call and their customer service will help you with any questions. I highly recommend advanced.Hey ya'll.. new here! I have a question about LEDs. What about the 360w extreme led.. http://www.advancedledlights.com/products/NEW-%2d-360w-Extreme-Flower-LED-%2d-3w-USA-LEDs-%2d-11-Wavelengths.html
From what I've researched it seems the most legit per dollar. ...3w leds, cree leds, 11 wavelengths, 864w equivalent.
What do you guys think? Anything that beats that? I'd like to know because i'm buying one soon.
so guys i just bought a 400w led light at my local hydro store for $475
how much is this going to cost me a month in electricity?