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LED lights

Chr0nus
Chr0nusstarted grow question 5 months ago
A question about lights. I got a 600w blue/purple led light and 2 300w full spectrum led lights. First time using the blue/purple led and a lot of articles seem to say they’re not as good. Which ones the better one to use or does it not matter?
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Setup. Lighting
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A_Stoned_Llama
A_Stoned_Llamaanswered grow question 5 months ago
Blurple is traditionally harder to see issues with your plants at a quick glance. That alone should sway you away from it. Digging further, (I'm going to dumb down the terminology) the photons/waves from Blue light are super efficient and have always been ahead of red. So mfgs of blurple light have been caught in the past pumping up the blue spectrum to raise the total "PPFD" for the light. So you may not be getting an even split of red and blue. Not to mention there is more research coming out about full spectrum lights and I think we are just finally at a point where we can accurately mimic the suns spectrum decent enough to make it commercially viable. Don't go off of wattage to start, check Par maps (light spread across canopy), PPFD, and light spectrum first. I believe Mr. Growit has a YouTube interview with an LED engineer that discusses all this at length and if you want more information.
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m0use
m0useanswered grow question 5 months ago
full spectrum is better, flat out, If the bluepruple is all you got, then use it till it dies, or sell it to someone who wants to experiment with LED's, I'm sure they have a better use for something else. Regarding the Wattage of the lights, manufactures like to lie about it, and give the theoretical number. eg. if you running a light that has 100x 2w led diodes in it, that could have theoretical output of 200W 100x2w=200w, but the diodes are never run at 100%, they would burn out and not last very long. most lights tend to aim for under 25% of the didoes maximum output, 25% of 2w is 0.5w a diode 2wx.025=0.5w, x100 = 50W total for this made up light, however it would be advertised at 200W because people want to see bigger number as bigger means better for the uninformed consumer. Even when a good light with a dimmer is at 100% on the dimmer, the driver is not pushing more then 25% of the total wattage that led diode can handle, this creates a product that will last years. Look at your driver, it will tell you how much it is pulling from the wall and then you will know what the real wattage it. If your unaware or this all seems to much post link of where you got your lights from or the manufactures page for the light and the community can help out and look it up for you. even model numbers from the light its self and brand can help. Good Luck!
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AutoflowersSucK
AutoflowersSucKanswered grow question 5 months ago
Blurple lighting is annoying. It's old technology. And the dude below is right. It's much harder to see problems with your plants with weird coloured light everywhere.
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Angus_MacGrower
Angus_MacGroweranswered grow question 5 months ago
I don't think the power amount you give us are real. I don't known for the blurple, but the MH SP3000 are 300W (not 1150W) each. If you're using watts to define light power equivalence with HPS, you should stop and start thinking μmol/m².s. ^^ Use a quantum meter (or the PPFD Meter apk, as rudimentary as it may be) to compare the amount of light each fixture are pushing out. Anyway, Blurple are not completely PAR and the green is also needed by the plants (better leave penetration). Also the white lights help to spot deficiencies or toxicity on the plants.
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JUNGLE_B4RNS
JUNGLE_B4RNSanswered grow question 5 months ago
It was at the beginning of the LED’s for horticulture. They’ve tough it would increase growth rate, they’ve tried, but wasn’t really the success expected. Then full white spectrum LED’s took the lead on the market. Personally, full white spectrum light really increased my crops.
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