thebluntman
Active Member
Nice. Looks on point.
DIY with Quantum Boards
- Thread starter robincnn
- Start date
Doctor Derp
Well-Known Member
So, is 8x QB304 running at ~900w overkill for a 5x5? if I upgrade a couple heatsinks I could push them up past 1200w and grow plants on Mars. 
ChefKimbo
Well-Known Member
Sounds like overkill to me I run 2 in a 3x3. But you'll have to wait and see how your plants respond but looks to me like you're ready to vaporize your plants!So, is 8x QB304 running at ~900w overkill for a 5x5? if I upgrade a couple heatsinks I could push them up past 1200w and grow plants on Mars.
I'm running 750 over 4x4 working great so far 900 should be good for 5x5So, is 8x QB304 running at ~900w overkill for a 5x5? if I upgrade a couple heatsinks I could push them up past 1200w and grow plants on Mars.
ttystikk
Well-Known Member
Will you need that much? No. Will it work? Yes, but you need to be ready for your plants to be hungry as hell and growing like mad. Keep temps and RH on point. At that intensity things can go wrong fast.So, is 8x QB304 running at ~900w overkill for a 5x5? if I upgrade a couple heatsinks I could push them up past 1200w and grow plants on Mars.
I can't seem to get mine over 300w without the plants showing some serious stress in a 3x3 tent with 4 boards. Two different strains so far showing about the same limit. Two sepperate tents with 2 sepperate rigs, one is 4x 300k and one is 4x 3500k. I have to check hanging distance but it's probably around 18-20".
Temps around 76-78*, leaves still get real crispy/sun burnt above 300w in my 3x3's.
Temps around 76-78*, leaves still get real crispy/sun burnt above 300w in my 3x3's.
ChefKimbo
Well-Known Member
Yep...in a few weeks ill be starting a journal, SOG in a 3x3 under two QBs. With so many turning their panels down I'm expecting great results!
Are you running them at max current? 300w should get some decent growth I wouldn't do any less than that
Budzbuddha
Well-Known Member
There seems to be a lot of " HID LIGHT " thinking when building rigs for set spaces.
It makes ZERO SENSE to outfit tents with 900 w rigs ... The efficiency of the boards design trumps ( hate that fucking word but ... ) building mega rigs. For enclosed tent grows there is better results with smaller builds as the reflective nature of multipoint lights will grow your plants better.
@ttystikk brought up the chart that best shows there is a range or plateau were high PPF brings less desirable results. The Quantums are far more efficient than the old bulb way of thinking. Growers have grown full plants with one board ( me ) with a lousy 50W driver in a 3x3 ....... use HLG recommendations for coverage and you will be golden.
I see no reason trying to shoehorn a 550 rig into a tent. A balance of power / efficiency and eviromental temps is the key.
Some on here are complaining about temps ..... Which is crazy ... If you dim down the power slightly , the boards ACTUALLY get more efficient. These are NO WAY THE SAME AS HID.
You will get great PPF measure at around 18" from canopy. , if you allow adequate airflow within tent , the tge light penetration will push thru plant. A properly lit tent will have very little shadow areas. No movers needed , no spinning fucking plants or much adjusting.
My rigs have a static height that NEVER CHANGES ... I have Rachet ropes but I don't use them. I have over a 20" of ceiling space in each tent for cooling and airflow , I check for a proper negative pressure in tent and let it go. For " OPEN SPACE " growing is where large light rigs will shine with a larger footprint and optics. I grow with around 300w on any one rig ( and am able to go higher but no need ) I let plants tell me where they are comfortable- if I get praying or " horizontal leaf plane " then I leave it.
Me thinks people like taco and crispy leaves to show they got the juice , lol
You will find also that plants will grow more uniformly from corner to corner within tents as there is really no more " hot spotting " . With a little LST / Supercrop/ etc. you will find tops grow together without much effort.
#QuantumLife
It makes ZERO SENSE to outfit tents with 900 w rigs ... The efficiency of the boards design trumps ( hate that fucking word but ... ) building mega rigs. For enclosed tent grows there is better results with smaller builds as the reflective nature of multipoint lights will grow your plants better.
@ttystikk brought up the chart that best shows there is a range or plateau were high PPF brings less desirable results. The Quantums are far more efficient than the old bulb way of thinking. Growers have grown full plants with one board ( me ) with a lousy 50W driver in a 3x3 ....... use HLG recommendations for coverage and you will be golden.
I see no reason trying to shoehorn a 550 rig into a tent. A balance of power / efficiency and eviromental temps is the key.
Some on here are complaining about temps ..... Which is crazy ... If you dim down the power slightly , the boards ACTUALLY get more efficient. These are NO WAY THE SAME AS HID.
You will get great PPF measure at around 18" from canopy. , if you allow adequate airflow within tent , the tge light penetration will push thru plant. A properly lit tent will have very little shadow areas. No movers needed , no spinning fucking plants or much adjusting.
My rigs have a static height that NEVER CHANGES ... I have Rachet ropes but I don't use them. I have over a 20" of ceiling space in each tent for cooling and airflow , I check for a proper negative pressure in tent and let it go. For " OPEN SPACE " growing is where large light rigs will shine with a larger footprint and optics. I grow with around 300w on any one rig ( and am able to go higher but no need ) I let plants tell me where they are comfortable- if I get praying or " horizontal leaf plane " then I leave it.
Me thinks people like taco and crispy leaves to show they got the juice , lol
You will find also that plants will grow more uniformly from corner to corner within tents as there is really no more " hot spotting " . With a little LST / Supercrop/ etc. you will find tops grow together without much effort.
#QuantumLife
Thats a great theory but in my experience your temps won't get high enough with really low wattage builds
ChefKimbo
Well-Known Member
I've been running at about 180w, with good results.
IDK man my temps run 78-85f with 65%RH. Happy plants despite PH issues.
Budzbuddha
Well-Known Member
I think there is no such thing as indoor
Looks good to me .... Happy plants
How big is your space?
WeedSexWeightsShakes
Well-Known Member
Just starting to Put my 260w kits together. Wondering what this is for?
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Humple
Well-Known Member
ChefKimbo
Well-Known Member
3x3x5, I plan to keep SOGs at 3', wish those moms would have stretched a lil more tho.
Budzbuddha
Well-Known Member
Well .... It's been hotter than satan's asshole out west with record temps and dry ass humidity. My neck of the woods is pushing 101° with high temps all week , so I had to give some insight on the ol Quantums from the trenches.
Still pushing only fans and rig temps are passable .... 86-88ish . I did notice that I will have to to cut the bloom fertilizer down a little ( down curl ) so water only today and the next dry time.
Entering week 5 today ... Some stem flop beginning so I will tie up a little as time tells.
I hate Cali heat but with Quantums I can still grow during summer without shutting down.
Still pushing only fans and rig temps are passable .... 86-88ish . I did notice that I will have to to cut the bloom fertilizer down a little ( down curl ) so water only today and the next dry time.
Entering week 5 today ... Some stem flop beginning so I will tie up a little as time tells.
I hate Cali heat but with Quantums I can still grow during summer without shutting down.
WeedSexWeightsShakes
Well-Known Member
I'm watching it and didn't see what that was. I'm not good at this shit lol