MeGaKiLlErMaN
Well-Known Member
Those are some garbage numbers, but ok ish for the size... Anything smaller than a 4x4 isn't usable for myself. And ppfd of 250 past 1 ft x 1ft is one of the worst I've seen. I'll take my 833 PPFD throughout my 5x5z
DIY OSRAM OSLON SSL led panel
speedyganga
Well-Known Member
I advice you to use this ratio for flowering : 730/660/630/CWhite : 1/4/4/4 replace the 730 with a blue 450 for veg.
with Oslon @500mA, your pannel will be more efficient than most Cob diy panel.
The rest is easy, chose the current you want to drive them: 350mA, 500mA, or 700mA.
On the datasheet you will find the voltage for each of these currents, you finally need to multiply by the number of led you have for this color, add all colors and you have the max voltage of your PCB.
go check if any HLG ....C correspond to the max voltage you have. and that is it.
with Oslon @500mA, your pannel will be more efficient than most Cob diy panel.
The rest is easy, chose the current you want to drive them: 350mA, 500mA, or 700mA.
On the datasheet you will find the voltage for each of these currents, you finally need to multiply by the number of led you have for this color, add all colors and you have the max voltage of your PCB.
go check if any HLG ....C correspond to the max voltage you have. and that is it.
MeGaKiLlErMaN
Well-Known Member
Curious what is the efficiency of that panel you're referring to?
Levradus
Well-Known Member
Thank you that was the answer of my question
I am big curios about one thing only cobs I reach easily and in cheap way to samsungs
those samsung cobs LC040B's are gonna cost me like 7 dollars
MeGaKiLlErMaN
Well-Known Member
how much more effective those vero's than samsung ?[/QUOTE]
I'm not too sure on the Veros, I'm a Cree guy.. But they will put out a lot more power and still be more than 40%.. You could grow some good stuff under there.. I would guess about a 400ppfd in a 4x4 with reflectors.
MeGaKiLlErMaN
Well-Known Member
133lm/w * 250w driver = 33,250lm total, not too bad but idk as for the actual PPFD but I had time to do that math^
Levradus
Well-Known Member
well did u check LC040B ?
please look http://www.samsung.com/global/business/business-images/led/file/product/lighting/201503/Data_Sheet_LC040B_Rev.10.0.pdf
buying veros from abroad will cost me real much please first understand me ; I am living with my girlfriend and sharing bit by bit everything soo I need to find the best cheap possible option around me I went down in every inch of those forums thcbay ledmagazine and rollitup, couple of rattles also I attend and couple of projects I attend to finish
most of them are failed because something showed up and I had to spent the money of the light for those situations
but now i have 150-200 dollars to spend ,
I want 4 x LC040B samsung led 2 and 2 will be parallel
HLG185H C1400B DRİVER
AND BUNCH of monos in mix of red blue between those cobs
please look http://www.samsung.com/global/business/business-images/led/file/product/lighting/201503/Data_Sheet_LC040B_Rev.10.0.pdf
buying veros from abroad will cost me real much please first understand me ; I am living with my girlfriend and sharing bit by bit everything soo I need to find the best cheap possible option around me I went down in every inch of those forums thcbay ledmagazine and rollitup, couple of rattles also I attend and couple of projects I attend to finish
most of them are failed because something showed up and I had to spent the money of the light for those situations
but now i have 150-200 dollars to spend ,
I want 4 x LC040B samsung led 2 and 2 will be parallel
HLG185H C1400B DRİVER
AND BUNCH of monos in mix of red blue between those cobs
PSUAGRO.
Well-Known Member
you do realize it's drawing 125-133w at the wall?, those are good #s ==== expecting it cover a 4x4 in flower with that wattage is not happening in 2016....
top group/bin oslon's 660nm are mostly unbeatable in umol/j(within PAR) according to alesh's #s.................NOT easy to grow or see anything with it though,lol
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MeGaKiLlErMaN
Well-Known Member
It would cover a 4x4 better than the previous light that was just red and blues. Which was my point. I would love to see a high par output blurple light but I haven't seen it yet. And by high I'm talking at least 800ppfd in a 5x5 because that's what I'm running and I do have 2 spaces still available in my 10x15'.
I'll definitely check them out if you have some DIY option that's out there!
MeGaKiLlErMaN
Well-Known Member
Also I picked up 2 1000W HPS reflectors, digital balist and a few timers for $160, why not just go on the Craigslist? I also picked up another 1000w for $65. It seems like fishing on there would be way better than trying to make a cheaper led you know?
Levradus
Well-Known Member
whenever I open topic to require some help and friendly chat about the project
things always go in u moll ppfd and par parameters
always there are sides to argue about those
well ''while someone not observing photons even not are particules''
do not try to be soo precise about this shit, illusions and wave theorems are all around us
you better help me
things always go in u moll ppfd and par parameters
always there are sides to argue about those well ''while someone not observing photons even not are particules''
do not try to be soo precise about this shit, illusions and wave theorems are all around us
you better help me
MeGaKiLlErMaN
Well-Known Member
Where about a are we talking? What's your voltages? PM me.I am from a east side of world
craigslist wouldnt work for me
BM9AGS
Well-Known Member
I have cobs for my 5x5. But truth be told I'd rather have 6 of the 2x2 Osram panels.....which would be the easy price of 3600 beans.....haha. And 528 actual watts and probably half the heat as my 16 cxb 3590.
I'm waiting for osrams next panel to come out that doesn't need to be hung 20 fucking feet off the ground.
Unfortunately California light works new SS 550(overdriven ssl80) is only pushing 1.5 umol/j otherwise I'd jump on it.
MeGaKiLlErMaN
Well-Known Member
That's not to bad at all, do you know that actual PPDF is from your lights? Because all I have seem on lights are super fast fall off compared to the higher end Cree and varos.
The lights that were posted here earlier were garbage.
So there is a newer board coming out that's more efficient? I'm at 61% myself.
BM9AGS
Well-Known Member
Osram just released the horti series of SSL LEDs. Way better.
With the Osram Zelion panels it will fall off from center beam with out reflective walls or supporting lights. If I had 6-9 of the Zelion HLs I'm sure the PPFD would be epic and mostly even. Even my 16 CXBs have a hotter center spot....every light will have a hot center spot unless you remove LEDs from center.
Look at Zelion hl 300. Light. Crazy price but damn. 600w of Osram ssl80. And it has white not just red blue
MeGaKiLlErMaN
Well-Known Member
Thats the idea, you spread out the leds to have an even canopy all over,
thus how I get 833-830 all over my canopy from 2.5 ft away.
Looking at that light It would cost $4,000 to get about the same light output im getting for $1,600...
I cant see it being worth it.
The light drops off within about 1.5 SqFt to an unusable amount, so overlap would put it at around 500ppfd. with hot spots of 900ppft. making it the same as my light.
To be fair it does save 200W at the wall and probably some heat. But I have 800W CXB 3590s being ran passively in my room at it makes the room stay at 75F.
So it comes down to a 5x5 costing $4K or $1.6K for the same amount of light... not even getting into the quality.
How do you justify it for such a 200W difference costing
umol/s/W / CRI: 4.53 / 70CRI so the data above is accurate.
MeGaKiLlErMaN
Well-Known Member
heres the calculation for my light. ignore the heat sink info as its wrong.
CXB3590DB36V4000K 16 COBS @1.4A ON 1.813 PROFILE HEATSINK
25 SQ.FT. CANOPY 94% EFFICIENT DRIVER @13 CENTS PER KWH
Total power watts at the wall: 831.91
Cobs power watts: 782
Total voltage forward: 558
Total lumens: 154163
Total PAR watts assuming 10% loss: 430
Total PPF: 1947.9
PPFD based on canopy area: 838.68
PAR watts per sq.ft.: 17.2
Cob efficiency: 61.03%
Power watts per sq.ft.: 31.28
Voltage forward per cob: 34.89
Lumens per watt: 197.14
Heatsink riser thickness / number of fins / fin's length: 0.3in/6/0.95in
Heatsink area per inch: 100.94 cm^2
Total heat watts: 305
umol/s/W / CRI: 4.53 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 363 inches
Heatsink length active cooling @40cm^2/heatwatt: 121 inches
COB cost dollar per PAR watt: $1.87
Electric cost @12/12 in 30 days: $39.43
Electric cost @18/6 in 30 days: $58.9
Cost per cob: $50.17
Heatsink cost per inch cut: $0.66
Total cobs cost: $803
Total heatsink passive cooling cost: $240
Total heatsink active cooling cost: $79
CXB3590DB36V4000K 16 COBS @1.4A ON 1.813 PROFILE HEATSINK
25 SQ.FT. CANOPY 94% EFFICIENT DRIVER @13 CENTS PER KWH
Total power watts at the wall: 831.91
Cobs power watts: 782
Total voltage forward: 558
Total lumens: 154163
Total PAR watts assuming 10% loss: 430
Total PPF: 1947.9
PPFD based on canopy area: 838.68
PAR watts per sq.ft.: 17.2
Cob efficiency: 61.03%
Power watts per sq.ft.: 31.28
Voltage forward per cob: 34.89
Lumens per watt: 197.14
Heatsink riser thickness / number of fins / fin's length: 0.3in/6/0.95in
Heatsink area per inch: 100.94 cm^2
Total heat watts: 305
umol/s/W / CRI: 4.53 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 363 inches
Heatsink length active cooling @40cm^2/heatwatt: 121 inches
COB cost dollar per PAR watt: $1.87
Electric cost @12/12 in 30 days: $39.43
Electric cost @18/6 in 30 days: $58.9
Cost per cob: $50.17
Heatsink cost per inch cut: $0.66
Total cobs cost: $803
Total heatsink passive cooling cost: $240
Total heatsink active cooling cost: $79