New quantum board QB324!

[skoomd]

Did HLG ever post that sphere data? Our quest for knowledge will make us brighter.

No quantum sphere data, but they have spectral/cri/luminousity sphere data. 125 lumens/w without lense and 112 lumens/w with the lense. Without the LER (max lumen/w to calculate efficiency %) it doesnt tell the full story, but doesnt seem very good IMO.

 

[Prawn Connery]

It says those Nichias are 6.6v @ 200ma, so does that make them 428w boards?

 

[Prawn Connery]

Bump!

Serious question. Do these boards need to be hugely underdriven to counter heat issues from the 6V LEDs? Because I noticed the QB288 V2 boards are now rated at 100% LM301B output, as they seem to be better spaced and are a little less powerful than the LM561Cs they replaced.

HLG also state the QB324s can only be driven at 160w using the Slate 2 heatsinks, with a maximum rating of 250w for - I'm assuming - better heat-sink or active cooling designs.

At 160w, by my calculation, those 757 Nichias would be running at around 40% of capacity. Unless I've figured wrong . . .

 

[Rocket Soul]

No quantum sphere data, but they have spectral/cri/luminousity sphere data. 125 lumens/w without lense and 112 lumens/w with the lense. Without the LER (max lumen/w to calculate efficiency %) it doesnt tell the full story, but doesnt seem very good IMO.

Hlg site states 61.5 lums/ppf so just over 2 ppf/j at around 130w. I believe they would use 700nm as an upper cutoff for measuring par, so theres a few far red photons not counted in those 2ppf/w. @Stephenj37826 should be able to confirm.

 

[jjng5]

Are there two versions of the QB324? Is that the difference in the voltage between one and the other? I see many reference QB324 as a 100V board but on HLG website it says the QB324 is a 55 VDC board. My head is spinning here

 

[Prawn Connery]

Are there two versions of the QB324? Is that the difference in the voltage between one and the other? I see many reference QB324 as a 100V board but on HLG website it says the QB324 is a 55 VDC board. My head is spinning here

Here you go. I've got the old QB324 V1.

Guys, the new QB324 V2 is a completely different board to the old QB324 V1.

V2 uses 2.8V/200mA LM301B at CRI 80

V1 uses 6V/150mA Nichia LEDs (NT2L757GRT-V1) mixed CRI 80 and 90

I've had quite a few questions from people about the new QB324s and its unfortunate that HLG doesn't spell out the differences, as many have assumed they are very similar.

@Humple, I tend to agree with you. The old QB324 may not have been the most efficient board on the market, but it offered something other boards didn't (high CRI, more red for the same spectrum, more power for those who wanted it, and a decent price). Just my 2c

http://www.rollitup.org/t/qb-vs-strips.984667/#post-14749047

 

[jjng5]

@ Prawn Connery is the man -- this starts to get very confusing; especially since HLG doesn't have any information about differences between 324 V1's and V2's nor do they have a Flux sheet on this board listed. Grr... Haha

SWIM is thinking about picking up four of these QB 324 V2's -- running two boards each at 2800 mA with a HLG320 driver. As SWIM is very new to LED lighting, trying to research as much as possible. Not sure about the 90 degree lens optics too