Personal computing discussed
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Aranarth wrote:Where's all the images??
SuperSpy wrote:How are you liking the blue and red LEDs are they bright enough? I'm having a heck of a time figuring out brightness with those things, and most manufacturers don't seem to want to publish lumen ratings on them.
SuperSpy wrote:The images look fine to me.
How are you liking the blue and red LEDs are they bright enough? I'm having a heck of a time figuring out brightness with those things, and most manufacturers don't seem to want to publish lumen ratings on them.
drfish wrote:Honestly I'm not sure - the whole setup is getting some natural light so I don't know what the balance is. As things are I have seven 5w strips in place. The specs say the wavelengths are [blue] 445nm and [red] 660nm but you're correct that I don't have specs on lumens - I also have the lights higher above the plants than I original intended so that is a factor as well. The title of the thread says it all, I learned the basics from some reading and watching online but after that I just decided to go for it and see what works and what doesn't first hand.
SuperSpy wrote:The blue and red LED sets don't seem nearly as productive as the traditional T5 grow lamps.
ludi wrote:SuperSpy wrote:The blue and red LED sets don't seem nearly as productive as the traditional T5 grow lamps.
Did you compare the rated luminous output, by any chance?
SuperSpy wrote:ludi wrote:SuperSpy wrote:The blue and red LED sets don't seem nearly as productive as the traditional T5 grow lamps.
Did you compare the rated luminous output, by any chance?
That's one of my gripes with the grow lights I can find, none of them advertise lumen ratings.
Also, I'm not sure if lumens are even the unit that should be used. AFAIK, lumens are calibrated to the human eye's sensitivity curve (aka green is worth nearly 2x what red and blue are worth) which is completely opposite of what plants crave require for lighting.
ludi wrote:I was going to guess that the light generated by a high-output fluorescent growlight will vastly exceed those miniature strip LEDs.