Should I get this LED

T

thething

Member
Hi guys, I am having real problems deciding on a light for a 2x2ft space.

I am interested in Quantum Boards and DIY but unless i can buy everything from a single UK store, they aren't an option right now (security reasons...)

I would like something under 200w true power and around £100, so I am looking at this.

BLOOMWIN COB (for some reason i can't post links.. apparently i need a -1% like:post ratio and i have 29%.. i've no idea what to do...)

Please type in Amazon uk "400w bloomwin COB" and it is the first link.

This COB has 0 reviews but to my uneducated eye it looks good. Should I get this or do you suggest another LED that is not a QB for a similar price? (Meizhi 450? Viparspectra? Mars?)

Please reply, i don't have much time left to make a decision.

Thanks
 
superjack

superjack

Member
except Viparspectra, the other lights are ok, my Viparspectra light burnt about 2 months, and the junk light has many blue light, less red light, not suitable for bloom
 
BudgetGrows

BudgetGrows

Well-Known Member
I run a vipar, it's almost pure blue, not good alone in veg. But for the price it's ok. Just don't expect multiple grows with it. I've seen many side by side grows using blurples and full spectrum led lights, next to cob and quantum boards. Surprisingly the blurple took the cake everytime. But the hype right now is all about the cobs. In my opinion blurples have come along way in grow lights and good ones give you great spectrum. The QBs and COBs are newer tech in the grow world. I'm sure they will out grow the blurples by far in a few years. I think people with the bad results are running 3000k cobs. I think the other spectrums the blurples produce really do help. If you do a self build, I would not suggest running a pure 3000k flower light. Through in some other colors or even a UVR t5 tube
 
T

thething

Member
Evil-Mobo said:
That just looks like a rebrand of another company sold on amazon here in the US forget the name right now.

I would see what you can do for DIY for a quality LED. You should be able to get setup cheap with a 400 watt HID for the time being until you can save more $$ in your budget to get or build a quality LED (COB/QB) later on.

Just my opinion...........
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Roleadro? We have those lights too, those are £89, but there is no image showing their spectrum.

Does the spectrum of the Bloomwin and other specifics look good? Better than Meizhi/Vipar?
QB isn't possible right now because i can't take multiple small deliveries because things are likely to be stolen by people in other flats. I need 1 package that i can organise next day delivery with. 400w HID would be more than i want to spend on electricity, which is very expensive here. Across the length of the grow a more than twice as expensive LED would work out cheaper, not to mention i'd also need a veg solution.
 
Thumbs up

Thumbs up

Member
the new meizhi reflector 450 light add more red lights, I got one last week, like their new design with etl, you guys can try it:lol:
 
T

thething

Member
Thumbs up said:
the new meizhi reflector 450 light add more red lights, I got one last week, like their new design with etl, you guys can try it:lol:
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That is my main other option, it is £91 on amazon. Is there a new version of the reflector, or are you just referring to their reflector version as new? If you compare its red spectrum to that COB though, its only half as much. Also 1 year warranty vs 2 and 53 decibels vs 30.
 
freemanjack

freemanjack

Well-Known Member
thething said:
Hi guys, I am having real problems deciding on a light for a 2x2ft space.

I am interested in Quantum Boards and DIY but unless i can buy everything from a single UK store, they aren't an option right now (security reasons...)

I would like something under 200w true power and around £100, so I am looking at this.

BLOOMWIN COB (for some reason i can't post links.. apparently i need a -1% like:post ratio and i have 29%.. i've no idea what to do...)

Please type in Amazon uk "400w bloomwin COB" and it is the first link.

This COB has 0 reviews but to my uneducated eye it looks good. Should I get this or do you suggest another LED that is not a QB for a similar price? (Meizhi 450? Viparspectra? Mars?)

Please reply, i don't have much time left to make a decision.

Thanks
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Dont buy blurple, you will be disappointed, if yer uk based like me, building yourself is the best bet currently as we have zero uk light building companies worth shite. Happy to provide you with a couple of different parts lists. Can even offer to engineer the heatsinks or fully build the light depending on your budget and skillset. Stick 'jack freeman led' into utoob to see some of my how to vids and get a feel for what is simply achievable with a little effort. Or just trawl thru my posts on here.
:bigjoint:
*edit, uk prices are around 75p per watt self build as an absolute minimum, if you are paying less than £200 for a 200 w pre built its going to be about as efficient as a regular incandescent lightbulb!
 
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T

thething

Member
I wonder if i am speaking a different language or something.
"they aren't an option right now (security reasons...)"
"Should I get this or do you suggest another LED that is not a QB for a similar price?"
"QB isn't possible right now.."

Can nobody just look at that Bloomwin and tell me, by its technical details, if it should be the best non QB for the money that i can get right now?
 
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T

thething

Member
"It looks shit"
Great. Why? I can see grow journals of Viparspectra and Mars LEDs and they aren't shit. Maybe not as good as DIY COB but can we just get a modicum of objectivity here?
How would that Bloomwin - if its spectrum and specs are accurate - compare to other LEDs that I can check the performance of, such as Viparspectra, Meizhi, Mars etc?
 
freemanjack

freemanjack

Well-Known Member
thething said:
"It looks shit"
Great. Why? I can see grow journals of Viparspectra and Mars LEDs and they aren't shit. Maybe not as good as DIY COB but can we just get a modicum of objectivity here?
How would that Bloomwin - if its spectrum and specs are accurate - compare to other LEDs that I can check the performance of, such as Viparspectra, Meizhi, Mars etc?
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Here's objectivity if you want it, that light is a shit object! it gives shit light, is poor value for its growing efficacy and you would be better off with hps but you seem to wan't everyone to jump on and tell you how great it is. As an experienced grower, light builder and horticultural scientist, I'm not just here to be liked or make money, at my age I couldn't care less about either. You can waste your money if you want its your choice. I've spent the past 2 years looking at every spec sheet I can find for every type of light, you could always do the same.
 
T

thething

Member
freemanjack said:
Here's objectivity if you want it, that light is a shit object! it gives shit light, is poor value for its growing efficacy and you would be better off with hps but you seem to wan't everyone to jump on and tell you how great it is. As an experienced grower, light builder and horticultural scientist, I'm not just here to be liked or make money, at my age I couldn't care less about either. You can waste your money if you want its your choice. I've spent the past 2 years looking at every spec sheet I can find for every type of light, you could always do the same.
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What I want is for people to respect the question i've asked with the details i've given, i've said DIY boards aren't an option and you've completely ignored it. "It's shit" isn't objective. You are the only person to suggest HPS, so don't pretend i've not been receptive. The reason i've not really considered HPS is due to the heat and power consumption- i only have 60x60x150cm space and even a "450" LED will consume less than a 250w HPS, especially if you factor in that you can switch to use either veg or bloom halving power consumption and giving greater control of heat. Then there is the fact that they only last a couple of grows. All of this and i was under the strong impression that one of these LED's would outperform an HPS at equal true wattage. If that is not the case then I am all ears. Would you recommend, say, a Sunmaster dual spectrum 250w HPS, above any ~£100 LED, then?
 
freemanjack

freemanjack

Well-Known Member
thething said:
What I want is for people to respect the question i've asked with the details i've given, i've said DIY boards aren't an option and you've completely ignored it. "It's shit" isn't objective. You are the only person to suggest HPS, so don't pretend i've not been receptive. The reason i've not really considered HPS is due to the heat and power consumption- i only have 60x60x150cm space and even a "450" LED will consume less than a 250w HPS, especially if you factor in that you can switch to use either veg or bloom halving power consumption and giving greater control of heat. Then there is the fact that they only last a couple of grows. All of this and i was under the strong impression that one of these LED's would outperform an HPS at equal true wattage. If that is not the case then I am all ears. Would you recommend, say, a Sunmaster dual spectrum 250w HPS, above any ~£100 LED, then?
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Simply put, yes. If you get one of the digital adjustable ballasts, its the only way of filling that space on your budget without going self build cob/qb. The light you posted initially is impossible to give any real scientific comparison because all we have to go on is marketing wank with scant details but from experience cheap blurples rarely exceed the 80 lum/watt of the average hps and while emitting more usable (visible) photons per watt than hps the whole blurple thing was based on PAR of a very biased spectrum and simply does not grow good weed for your watts. White full spectrum CoB's are the best thing around currently tho qb's and smd discreet mount is coming along nicely however on your budget you can only afford half the watts you will really need for the bleeding edge tech I work with. However, my personal recommendation would be self build CoB and suffer the hit on overall wattage for the reduced heat footprint and all its associated air flow/filtration problems. I can assemble lights and send them direct if yer uk based and can manage £1 per watt roughly for 7th generation CoB builds.
 
Tim Fox

Tim Fox

Well-Known Member
with 60 inches of height,, you need to be careful, as most cobs and led's need 18 inches in veg,, and 12 inches in flower,, those blurples will burn if you get them close,, if you can find a cob with a dimmer,, so you can dial down the light power,, so you dont burn your plants,,, have to consider this,, other wise,, maybe some 2 foot t5's
 
Tim Fox

Tim Fox

Well-Known Member
lukio said:
thank you very much, i try (:


but they are shit compared QB or proper white COBS


but you said

just get a hps, your neighbours definitely wont wanna knick that heap of shit (: best play it safe

wait...im not sure it'll come in one box...bulb, reflectors n ballast are separate, dude - sorry.

tricky one...hmmm

im out.
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what size HPS are you suggesting for a 2x2 box,,, a 400 will Roast him out, and burn up his plants,, fans,, sure hurricane blowing at break neck speeds ,,
 
Tim Fox

Tim Fox

Well-Known Member
thething said:
Hi guys, I am having real problems deciding on a light for a 2x2ft space.

I am interested in Quantum Boards and DIY but unless i can buy everything from a single UK store, they aren't an option right now (security reasons...)

I would like something under 200w true power and around £100, so I am looking at this.

BLOOMWIN COB (for some reason i can't post links.. apparently i need a -1% like:post ratio and i have 29%.. i've no idea what to do...)

Please type in Amazon uk "400w bloomwin COB" and it is the first link.

This COB has 0 reviews but to my uneducated eye it looks good. Should I get this or do you suggest another LED that is not a QB for a similar price? (Meizhi 450? Viparspectra? Mars?)

Please reply, i don't have much time left to make a decision.

Thanks
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hey buddy, buy one of these,,, just 1 will rock that grow space,, its selfcontained,, no fans,, ready to plug in,, and makes very very little heat https://cobshop.net/shop?olsPage=products/autocob-55&olsFocus=false
 
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