Budzbuddha
Well-Known Member
Trump trying to " FRY " a Quantum Board .....
DIY with Quantum Boards
- Thread starter robincnn
- Start date
ledgardener
Well-Known Member
Thanks! That PPFD should be pretty easily attainable at that distance but I'm not sure how far out from directly beneath the lights you could maintain it. I'll give it a try next week sometime and see.
ledgardener
Well-Known Member
Thanks dude
My HLG-600H Kit with Slate 5 arrived today 
Whipped it together in about an hour and turned it on... Wow
It really is bright.
Tested the wattage on it and it's drawing 596 watts, but the voltage was actually reading only 111v so that would explain the watts being a touch lower then they can be I guess.
my other light pales in comparison
Its only drawing about 450 watts in total, including the led strips
checked both lights roughly with my ppfd meter, nothing exact so I will do something more exacting tomorrow probably. But the Quantum boards are putting out about 40% higher ppfd at 18 inches ish compared to my citizen cobs and the quantum boards are only using about 30% more watts.
by the way, my cobbs are 3k so I run the blues for veg to alter the color spectrum. Absolutely no actual scientific proof or tracking but it does change the light color visibly when its on or off.
Whipped it together in about an hour and turned it on... Wow
It really is bright.
Tested the wattage on it and it's drawing 596 watts, but the voltage was actually reading only 111v so that would explain the watts being a touch lower then they can be I guess.
my other light pales in comparison
Its only drawing about 450 watts in total, including the led strips
checked both lights roughly with my ppfd meter, nothing exact so I will do something more exacting tomorrow probably. But the Quantum boards are putting out about 40% higher ppfd at 18 inches ish compared to my citizen cobs and the quantum boards are only using about 30% more watts.
by the way, my cobbs are 3k so I run the blues for veg to alter the color spectrum. Absolutely no actual scientific proof or tracking but it does change the light color visibly when its on or off.
I was thinking of having the slate 3 triple cover an area of 3x2 or 6 s.f. board length is 35".. You
would cover this area in your readings.
Thanks.
thebluntman
Active Member
Is .125 or 1/8th inch aluminum thick enough to tap? Would m3 screws work?
BobCajun
Well-Known Member
Not if it's solid QB. They're about 1'x0.5', so two of them cover a sq ft. Of course it would cost you about $150 /sq ft but let's just say price is not a concern. I guess the LEDs only put out about 30 lm each so you'd need about 250 for a square foot, so one QB per sq ft would be about right, with 304 LEDs. Okay never mind the test then, probably irrelevant. However, trying to light more than one sq ft with a QB would seem inadvisable, at least at their normal current. What's 304 x 30 lm? About 9000, slightly more than what one sq ft would need, which is 7000-7500 lm. No matter how you try to position them, you could never get more than 9000 lm out of a QB could you? Let's be generous and say a QB could cover 2 sq ft, at reduced intensity. That's not even 2'x2', more like 1.5'x1.5'.
Last edited:
Stephenj37826
Well-Known Member
You can get way more than 9000 lm from a QB. 65ma is not a normal current for Samsung lm561C. They show that number to make the LEDs look exceptional. I'm not sure anyone runs them that soft. You ever see a led light bulb that's over 100 lms a watt in warm white? QBs can cover a 2x2+ space. If you wanted to run really close and create a solid QB I would recommend drastically lower diode density. 75 LEDs per square ft? If you where really chasing efficiency 150 per square ft would net you really high umol/j figures.
Stephenj37826
Well-Known Member
Here is maximum lumens from a QB288 at 65C case temp.
Wow Stephen, by those numbers one could almost run a 4x8 tent with just 4 qb's
I was really impressed by the amount of light they put out yesterday when I got them turned on.
Seems like 6 qb's would be more then enough for my tent but I would probably need to hang them 24" above the canopy for light spread.
I plan on doing my own testing for light distribution sometime in the next few days.
I was really impressed by the amount of light they put out yesterday when I got them turned on.
Seems like 6 qb's would be more then enough for my tent but I would probably need to hang them 24" above the canopy for light spread.
I plan on doing my own testing for light distribution sometime in the next few days.
Daylee
Well-Known Member
Hi guys
Looking for some help
Im new to all this
Started growing two plants
Bought a mars reflector 48 thinking it would do the job
After reading about it more realised its crap
Read as much as i could in the past few weeks
Im really sold on these boards
I have a 2.6x1.6x6 space(80cm x 50cm x 180cm)
Want to run 1 qb
Could some1 point me in the right way?
I saw a kit that included the mw driver qb board and predrilled plate but it was out of stock and in the usa
Im in eu is there anyway to get this here?
Any help would be appreciated
Looking for some help
Im new to all this
Started growing two plants
Bought a mars reflector 48 thinking it would do the job
After reading about it more realised its crap
Read as much as i could in the past few weeks
Im really sold on these boards
I have a 2.6x1.6x6 space(80cm x 50cm x 180cm)
Want to run 1 qb
Could some1 point me in the right way?
I saw a kit that included the mw driver qb board and predrilled plate but it was out of stock and in the usa
Im in eu is there anyway to get this here?
Any help would be appreciated
Stephenj37826
Well-Known Member
Yes we can get it to you. The 135 watt kit would do the trick. They will in stock today.
StonerCol
Well-Known Member
A few guys in the UK have ordered/used these so don't worry about getting them from that perspective. The issue is that they literally sell like hot cakes...like the very best hottest cake you could ever wish for!
Daylee
Well-Known Member
StonerCol
Well-Known Member
It aint Trump that's gonna "Make America great again" It's the Quantum Boards
StonerCol
Well-Known Member
I'll let @Stephenj37826 answer the shipping costs but just be aware that there may be an import tax to pay in Holland. You'll need to find out what rate that is etc...or you could just wait until they turn up and see how many Euros the delivery company ask for. It won't be a lot on a small kit....maybe 15-30 Euros I'd imagine but I don't know for sure.
Hope this helps. Good luck with the kit.
tstick
Well-Known Member
One verrrrry slight criticism that I can see on the 550, is that the boards are riveted to the heatsink panel....Why? Wouldn't it make more sense to use screws -in case there is a need to replace a single board for some reason? Let's say the fixture gets accidentally bumped and something breaks on one of the boards....I'd have to pay shipping to send the entire panel back to HLG for service or replacement. If it was screwed in, then I could just detach the broken one and have them send me a new board and I could screw it in, myself....Or, did I miss a reason for the rivets?