Stephenj37826
Well-Known Member
Yeah. Some of the lumen gains come from a change in how they apply the phosphorus. 2% gain or so in ppf/w vs lm561c and a lot more cost.
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DIY with Quantum Boards
- Thread starter robincnn
- Start date
jonsnow399
Well-Known Member
they knew before digital meters if one grid was using more power than the meters were reporting.
Exactly it's just funny that people are finally starting to notice them. Is the beam angle different? I remember looking at them a while ago i thought I remember reading about a more narrow beam angle
Great pic !! screw em....
Budzbuddha
Well-Known Member
Quantums work well with " others " - G8 Deep Red LEDs ( 630-660nm )
I bought these awhile back ( stupid BLURPLE days ) but chose to keep these for shits and giggles. The quantums ALONE do the job , but chose to add more RED SPEC from time to time ........mostly when I do the back build on buds technique. It helps for what it is , and have added them to my 3500k quantums as " filler ". I use the now as positional lighting both above and side depending on area.
It throws very intense red , even just one of them .....
I bought these awhile back ( stupid BLURPLE days ) but chose to keep these for shits and giggles. The quantums ALONE do the job , but chose to add more RED SPEC from time to time ........mostly when I do the back build on buds technique. It helps for what it is , and have added them to my 3500k quantums as " filler ". I use the now as positional lighting both above and side depending on area.
It throws very intense red , even just one of them .....
smokeybeard
Well-Known Member
Tomorrow is day 14 into 12/12. Anyone have any suggestions?
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Budzbuddha
Well-Known Member
Looks great ...
Takeshy
Well-Known Member
Hey @robincnn , would this be a good thermal switch for 4xQB288 with HLG-480H-54A?
HLG recommends a thermal switch while wiring in parallel but did not mention any.
https://www.digikey.com/products/en?keywords=F20A07005ACFA06E
Thanks in advance!
HLG recommends a thermal switch while wiring in parallel but did not mention any.
https://www.digikey.com/products/en?keywords=F20A07005ACFA06E
Thanks in advance!
firsttimeARE
Well-Known Member
Day 42 4x4 scrog under 4 QB304 driven at 1050mA
Discreetdigrowman
Well-Known Member
Think i got the last slate 6 double can now add two more qb288s i know ill be gettng for christmas
higher self
Well-Known Member
Hey yall im looking into QB’s & wanted to know what one would recommend for a flowering tent just shy of being a 3x3.
I have a hlg 240-1050 that’s running some cxb3070’s & a half broken chilled board smh. Its not a pretty setup just temporary until I can upgrade. Definitely better than cheap burple leds!!
I could do another Cree setup like my 4x2 but wanted to do something different eiher with QB’s or LM561C strips.
I have a hlg 240-1050 that’s running some cxb3070’s & a half broken chilled board smh. Its not a pretty setup just temporary until I can upgrade. Definitely better than cheap burple leds!!
I could do another Cree setup like my 4x2 but wanted to do something different eiher with QB’s or LM561C strips.
firsttimeARE
Well-Known Member
I use 4 boards for a 4x4.
You could get by with 2 QB304
You could get by with 2 QB304
higher self
Well-Known Member
Ok cool, thanks! I know one wont be enough but didnt want to by 3 either lol. Going to reuse heat sink from old platinum 300 & one will have to get one more
higher self
Well-Known Member
I dont have the funds yet but their sold out anyways, which is why im considering a strip build.
frigginwizard
Well-Known Member
I'm not sure why he recommended the 304 specifically, but the 288s are basically the exact same thing, and are in stock.
captainmorgan
Well-Known Member
The 304 and 288 run at different voltages so you could match them to a existing driver if you had one or match them to a available one.
Discreetdigrowman
Well-Known Member
Day 33 really startin to flop and frost
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higher self
Well-Known Member
Yes I do see those available. Thanks!
Got it! I still have to do some more reading especially this thread. I have a 240-1050 meanwell driver I want to use.
pop22
Well-Known Member