DIY with Quantum Boards

[Stephenj37826]

The 301b has been out for a long ass time

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.

 

[jonsnow399]

All the meters are digital now. They know what grids are using more electricity than the meters are reporting now. It's simply a matter of manpower resources to hunt it down.

they knew before digital meters if one grid was using more power than the meters were reporting.

 

[Ryante55]

Yeah. Some of the lumen gains compress from a change in how they apply the phosphorus. 2% gain or so in ppf/w vs lm561c and a lot more cost.

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

 

[Dave455]

Or something like this perhaps.....
View attachment 4047518

Great pic !! screw em....

 

[Budzbuddha]

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 .....

 

[smokeybeard]

Tomorrow is day 14 into 12/12. Anyone have any suggestions?

 

[Budzbuddha]

Tomorrow is day 14 into 12/12. Anyone have any suggestions?

Looks great ...

 

[Takeshy]

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!

 

[firsttimeARE]

Day 42 4x4 scrog under 4 QB304 driven at 1050mA

 

[Discreetdigrowman]

Think i got the last slate 6 double can now add two more qb288s i know ill be gettng for christmas

 

[higher self]

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.

 

[firsttimeARE]

I use 4 boards for a 4x4.

You could get by with 2 QB304

 

[higher self]

I use 4 boards for a 4x4.

You could get by with 2 QB304

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]

I dont have the funds yet but their sold out anyways, which is why im considering a strip build.

 

[frigginwizard]

I dont have the funds yet but their sold out anyways, which is why im considering a strip build.

I'm not sure why he recommended the 304 specifically, but the 288s are basically the exact same thing, and are in stock.

 

[captainmorgan]

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]

Day 33 really startin to flop and frost

 

[higher self]

I'm not sure why he recommended the 304 specifically, but the 288s are basically the exact same thing, and are in stock.

Yes I do see those available. Thanks!

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.

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]

Looking good

Day 33 really startin to flop and frost

 

[pop22]

You could run 3-4 QB288 or 2 QB304 from that driver

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.