The Chinese Quantum Board Knock Off Builds
- Thread starter zypheruk
- Start date
Gond00s
Well-Known Member
honestly ill take my bxebs over lm301bs I get it if u want them but jesus I don't notice a difference when im driving so many of them. think of this for the price of a qb at 70 lets say and with the bxebs I got them for about 4.50 a pop and each strip has 112 diodes so compare that to the Qb. here for a 2x4 fixture this is what I spent. 70 bucks on heatsinks + 80 bucks for the strips + then link 70 for the driver and for the frame I just did aluminum L shape frame was like 40 bucks for 16 feet. I had all the wiring stuff so I don't count it so its pretty cheap man.
Cptn
Well-Known Member
This hortibloom light is interesting (seems to be near their top of the line)
The 650 watt version using samsung LM301b 3000k with (x# of?) 660's sells for $699 USD
That's .91 watts per diode. LEDs are more efficient when they are under-driven, and those diodes are the biggest cost of assembling a light.
Contrast that with some Kingbrite options at the ~same power level (600 watt) that sell for less and have 3 times the diodes!
1512 pcs Samsung lm301B+216pcs epistar 660nm - $370 and .35 watts per diode
1512 pcs Samsung lm301H+216pcs cree 660nm - $583 and .35 watts per diode
or this one: ($572 for IP67 waterproof version) and .35 watts per diode
Samsung LM301H: 1512pcs + CREE XP-E2 660nm: 72pcs + CREE XP-E2 730nm: 24pcs + LG UV 395nm: 24pcs
If you prefer the "bar" types, these units from Kingbrite have almost double the diodes for much lower price:
(Each 1100mm bar has 256 diodes on it (240 samsungs, 16 cree) so 5 x 256 = 1280 diodes at .47 watts per diode.
Samsung LM301H - $549
Samsung LM301B - $499
Just pointing this out with kingbrite products.
I am sure I could have found similar deals with meijiu on their version of the "bar" style lights.
Depends on personal taste.
Cptn
Well-Known Member
Can't find "growcraft" on alibaba. gotta link for this light you are asking about?
Cptn
Well-Known Member
something weird with your quote.
Looks like they are charging you in canadian dollars but shipping to the US?
Barristan Whitebeard
Well-Known Member
ChilLED GrowCraft. New light made in USA. They offer 2-6 bar lights, driven between 330 and 1000 watts depending on the model. DIY kits and complete fixture offerings.
I believe they use a mix of 3000k and 5000k LM301H and (according to @welight ) Cree XP-G3 660nm diodes.
Edit:I just remembered which thread I'm in.
i think you referr to the mega light wich doesnt use lm301 but different leds, the mega plus uses lm301b and dont have 672 of them but more from what i see it has 1280 plus the reds.This hortibloom light is interesting (seems to be near their top of the line)
The 650 watt version using samsung LM301b 3000k with (x# of?) 660's sells for $699 USD
I had to scroll all the way to to bottom of the ad to find out that this 650 watt light only uses 672 LEDs,
That's .91 watts per diode. LEDs are more efficient when they are under-driven, and those diodes are the biggest cost of assembling a light.
Contrast that with some Kingbrite options at the ~same power level (600 watt) that sell for less and have 3 times the diodes!
1512 pcs Samsung lm301B+216pcs epistar 660nm - $370 and .35 watts per diode
1512 pcs Samsung lm301H+216pcs cree 660nm - $583 and .35 watts per diode
or this one: ($572 for IP67 waterproof version) and .35 watts per diode
Samsung LM301H: 1512pcs + CREE XP-E2 660nm: 72pcs + CREE XP-E2 730nm: 24pcs + LG UV 395nm: 24pcs
If you prefer the "bar" types, these units from Kingbrite have almost double the diodes for much lower price:
(Each 1100mm bar has 256 diodes on it (240 samsungs, 16 cree) so 5 x 256 = 1280 diodes at .47 watts per diode.
Samsung LM301H - $549
Samsung LM301B - $499
Just pointing this out with kingbrite products.
I am sure I could have found similar deals with meijiu on their version of the "bar" style lights.
Depends on personal taste.
and let me clarify i have never tried hortibloom mega plus yet neither sinowell flexstar, till now i bought from kingbrite and mejiou on alibaba, wanted a ready fixture and i was thinking about sinowell flexstar wich i didnt know but seems a very legit company and hortibloom, think i will try the flexstar
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just over 1300 us total for 2 of these last week ... https://www.alibaba.com/product-detail/Meijiu-650w-Greenhouse-Grow-Lamp-Cob_62457914922.html
bk78
Well-Known Member
They are $1400 now with $$1300 shipping lol.
https://www.alibaba.com/product-detail/Meijiu-650w-Greenhouse-Grow-Lamp-Cob_62457914922.html shipping to us just last week for 2 was 427+38 insurance
they hear you got that 1200 trump check lmao
bk78
Well-Known Member
Thank fuck I’m not a yankee
dendroaspis
Active Member
Some info on kingbrite quatumboards.
I run 7 of them now since I also run the set-ip at a friends house who is unable to do so due to MS.
The earlier versions I have one 300w 3 piece and three 250w 2 piece set-ups of what is called the V2 version. Out those 4 boards 3 have died within a year. And the the two V3 (with added 660 nm epistr diodes) boards we own are still runing strongly. So maybe, this is an issue with their earlier boards. The V4 (with the UV IR FR led’s added) I just got a couple days ago, so no real word on those.
I also like to add that these QB’s have additional cooling from fans direct straight at them from the side.
I’m waiting on a response on warrnty from them
I run 7 of them now since I also run the set-ip at a friends house who is unable to do so due to MS.
The earlier versions I have one 300w 3 piece and three 250w 2 piece set-ups of what is called the V2 version. Out those 4 boards 3 have died within a year. And the the two V3 (with added 660 nm epistr diodes) boards we own are still runing strongly. So maybe, this is an issue with their earlier boards. The V4 (with the UV IR FR led’s added) I just got a couple days ago, so no real word on those.
I also like to add that these QB’s have additional cooling from fans direct straight at them from the side.
I’m waiting on a response on warrnty from them
coreywebster
Well-Known Member
what is it you want to buy from digikey?
What I need to knock together the equivalent of this
spm=a2700.icbuShop.41413.19.4154173ciWUjyf&fullFirstScreen=true&bypass=true
And boards which are at least equal to or better than this
https://www.alibaba.com/product-detail/Kingbrite-125W-qb288-v2-lm301b-board_62115173401.html?spm=a2700.icbuShop.41413.94.5a946beaIsFAVO&fullFirstScreen=true&bypass=true
spm=a2700.icbuShop.41413.19.4154173ciWUjyf&fullFirstScreen=true&bypass=true
And boards which are at least equal to or better than this
https://www.alibaba.com/product-detail/Kingbrite-125W-qb288-v2-lm301b-board_62115173401.html?spm=a2700.icbuShop.41413.94.5a946beaIsFAVO&fullFirstScreen=true&bypass=true
Airwalker16
Well-Known Member
Labradorweed
Member
Is there any problem with ordering quantum boards from China when it comes to tariffs? I read somebody had to pay UPS about 80 bucks for their shipment? This was not in 2020 though and this would be shipping to USA
Airwalker16
Well-Known Member
Shipping costs are always high. Even with boards and them weighing Fuck all. Bava made 15 144mm round pin heatsinks for me one time but they were so cool and worked with me and shipping wasn't over 100. This was over a year ago though.
Is it worth buying the boards with the heat sinks or getting the sinks local?
And, sorry to ask again, but howthe feck do I find what I'm looking for on Digikey? There are thousands of items come back if I type in a generic term loike heat sink or linear strip... is there a way I can narrow it down to the parts we're mostly using here?
Nice one
And, sorry to ask again, but howthe feck do I find what I'm looking for on Digikey? There are thousands of items come back if I type in a generic term loike heat sink or linear strip... is there a way I can narrow it down to the parts we're mostly using here?
Nice one