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Best led light?

Morning Growing420, yes, if you are determined to use LED lights, check out the COBs, that BigSmo, makes that are on Autoflower. Net.
Mcubed476, a grower on here ,uses them, and does great ,with his plants. Several more do to. The 300watt leds, like Galaxy Hydro, an Viparspectre, an several more grow good weed, but they don't for some reason, power I suspect, grow dense,hard nugs, like metal halide, or HPS, does. The led nugs have mostly always been very airy, an lite weight,but plenty smokable.
 
Cobs. Look at HLG leds, Google GROWMAUS. Chip on board leds is best led currently. Timber lights, rapidled, plc lighting concepts, chilled led.
 
Is there anything I should look for in a cob light? I read people and build there own is something that would be better to do than to buy a built one? Thanks for the info I have never heard of those cob lights
 
You can do that as well, it just cheaper. Rapidled will answer your questions. They have some really nice kits you assemble and you can customize them if you have some knowledge about what you want. Timber has nice ones that are built. You can have them leave that up to you to save some cash. Qboards are also an option.
 
Yes RosettaStoned
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3 Vero cobs from rapid led, plus an hlg veg board, couldn't just toss the ol mars
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previous grow,
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currently.
RosettaStoned
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400 watt hid light photo tent around 300 plus led. I'm just figuring out what works for me.
 
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Nice grow! Are you loving the results? I'm told I'll be amazed. Have you thought about doing his Mars to cob diy light? I have one I got for $20 and want to make a veg light out of it. Looks fairly simple if you're kinda handy.
 
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Its commonly misunderstood that COB is more efficient than its SMD counterpart. This is incorrect however. Because of the concentration of energy from the many individual light emiting diodes, the heat actually works against efficiency. This is because the junction temperature is relative to a diodes efficiency. This is the main reason of how thermal runaway events happen. Think light blow outs. The same radiant flux output (total energy) of a COB chip, spread out over a larger surface area with SMD. Will be more efficient because of the lower concentration of heat and higher dissipation.
 
What lights do you prefer to grow with? You obviously have good handle on the lighting for growing, I'd love to hear your opinion on what is best.
 
Well that depends on how you look at it.

Asuming for all variables that power efficiency and yield is priority.

Cost no object, the most efficient LED you can buy or build. But you are talking about several thousand dollars to buy or produce a product that will be superior to sodium discharge.

When economic value is wanted, sodium discharge wins all. With all other technologies the fixture cost per umol is in the several dollars. Sodium discharge is less than a single dollar per umol.

Even when not looking at the initial costs, sodium discharge is still more effcient and effective than anything else. Except for LED, but you have to pay deeply to get that level of efficiency.
 
There are places for other technologies such as Ceramic metal halide and fluorescents, but that again depends on your priority.
 
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