Samsung lm301b 3500K + 660nm: box 1Wx2.5Lx3H

stox

stox

Member
is a Micro box like this: box 1Wx2.5Lx3H going to be big enough for a 120w Samsung lm301b 3500K + 660nm light? with dimmer. Also not sure If i need IR UV version or not. same price. 1 Plant only

currently Im using this box with CFL's but I want to make a shift to LED and try growing them low and wide. How close can the tips come to plant, pushing it of course. 6"?
 
Moflow

Moflow

Well-Known Member
What dimension is the box.....? Lol
Do you mean 1ft x 2.5ft x 3ft ?
What size is the light? Is it a QB?
Id say you'll be ok.
All the spectrum options above you have mentioned will do the job.
Put 2 qbs in there or 2ft f strips would be a good option too
 
coreywebster

coreywebster

Well-Known Member
Make sure it has dimming capabilities because one board will light 2x2 in flower and you will want to dim in veg, especially given your low head room.
 
stox

stox

Member
Moflow said:
What dimension is the box.....? Lol
Do you mean 1ft x 2.5ft x 3ft ?
What size is the light? Is it a QB?
Id say you'll be ok.
All the spectrum options above you have mentioned will do the job.
Put 2 qbs in there or 2ft f strips would be a good option too
Click to expand...
yes 1 foot deep, 2.5feet wide, just over 3 feet high.

about 95cm high. So you think is that it's enough for such a Panel? I would mount it high, with maybe 3-5cm breathing room and little pc fan blowing from the side to cool it maybe.

I'm more concerned with the plant, I don't want to burn it and I'm new to LED's. however its only 120w..... yes QB, quantum board. 2? I was hoping 1 is enough.
I'm still a beginner but I see this a pretty well reviewed light panel and want to upgrade lights, not my box(cabinet). Ive read a lot of forums but can't find any definitive answer for myself.

Thanks
ps. link to the board i want to buy: aliexpress
 
Moflow

Moflow

Well-Known Member
As Corey sez, as long as you have dimming on it for seedlings, clones, vegging , I'd imagine it's an hlg 120h 54A driver - your link won't open for me.
Or it comes with remote dimmer. Those drivers max out pretty high. Like up to 150 watts maybe, I can't remember off hand and I have one!
I now use that driver on 3 samsung 2t F strips, the equivalent of 1.5 QBs for vegging at 84 watts in a confined area in attic with max height floor to light around 3ft ish.
They are a powerful light.
I was only suggesting 2 QBs for better light spread, less of a hotspot in the centre.

These PAR Maps below will give you an idea how powerful these are
18in-PPFD-1-4.png
HLG-QB-135w-PAR-Map-Data-650x650_0-2.jpg
 
stox

stox

Member
Its from aliexpress, mean well driver, HLG 120H with dimmer. Samsung LM301B. Original, not fake. reviews and pics available , lots of buys. about 130$
comes with mounting kit as well.

I feel maybe could keep the plants at bloom around 8 inches away, maybe more. I wanted this because its simpler to do (for me at least)

would those F strips, If i could get a hold of them here in Poland, would they work well on an HLG 120H driver? would 4 strips suffice for bloom? about 120w, or 5 better? 1-2 plants
 
Moflow

Moflow

Well-Known Member
Well you could ask the Ali vendor the price for 2 x boards, no heatsinks, no driver.
You can buy driver locally from TME EU Electronic.....

www.tme.eu

HLG-100-54A MEAN WELL - Pwr sup.unit: for LEDs,pulse | 95.58W; 54VDC; 1.77A; 90÷264VAC | TME - Electronic components (WFS)

MEAN WELL HLG-100-54A | Pwr sup.unit: for LEDs,pulse; 95.58W; 54VDC; 1.77A; 90÷264VAC - This product is available in Transfer Multisort Elektronik. Check out our wide range of products.
www.tme.eu

Slightly smaller driver ~ 100 watts, no heatsinks needed, just a aluminium frame needed, some wire and wagos.
Great coverage for your area.

I believe F Strips might be more expensive

SI-B8V521560WW Samsung Semiconductor, Inc. | Optoelectronics | DigiKey

Order today, ships today. SI-B8V521560WW – LED Lighting COBs Engines Modules LED Module series White, Warm Linear Light Strip from Samsung Semiconductor, Inc.. Pricing and Availability on millions of electronic components from Digi-Key Electronics.
www.digikey.pl www.digikey.pl

Local to you for aluminium
piekarz in poland
 
stox

stox

Member
WOW amazing, the prices are not bad - and free shipping. digikey

any other mean well drivers that could work? I think i might just get the 120w, the same as you. that link you posted says its not available.
How many strips again? 3?
what combination do you recommend? 3000x2, 3500x1? or 3500x2, 3000x1 ?

When all this is over, ill post my setup. And my current one. Not too proud but its getting the job done, almost at harvest time. for sweet tooth and cbd silver haze. CFL's


edit: digikey has the hlg 120h 54A. B model is for dimmer right? Also, is the aluminum absolutely necessary?? any diy alternatives?
 
Last edited:
Moflow

Moflow

Well-Known Member
3500k works well for veg n flower.
B for remote dimming. Ive Never used them
I use A drivers myself.
How many strips? One would do it! Lol
3 strips would kill that space, you'd only need 90 watts in that space so you can get away with the smaller driver or dim the 120h.
You need 120h 48A or B Driver for the Double row F strips NOT the 54A or B. It still works but the 48A is a better fit.

How many watts is the current light?
 
stox

stox

Member
ah so 1 2f strip 3500, with 120w driver (can dim as you suggested). Or 2x1f strips. right? You mentioned: "Double row ". Thanks for confirming that the 48A/B would be a better fit.

Q: since 90 is enough, Would the extra watts give any benefits considering that the strip wont burn them?
would you recommend any small supplementation full spectrum light(10-20w?)

I'm an inquisitive person because I really want to understand well, and optimize my options. Maybe one day ill be helping people out here :)

currently im running about 280W CFL . I read that 100-150w per sq/f. My space is +- 1x2 = 2sq/f on the plus side. the little reflector which holds all the bulbs is like a board, and its hoisted right up to the very top, and its too close for comfort. 2-5 inches away from the canopy.... the plants are not perfect but doing ok. Even with training and tying down, I got no more space to play with. They both capped out now since one a few days away from harvest, the other mid flowering.

If I had these Fstrips, I would have much more room to play with, Id get another 10" easy..... if not more.
 
Last edited:
Moflow

Moflow

Well-Known Member
Those 2ft strips are 560 mm in euros so double check theyll fit.
One strip too much intensity of light in the centre. You wouldn't run 1 strip with that driver.
The strips are run about 50 watts each.
2 strips better.
3 strips great. Even spread of light. No central hotspot.

The MW 120h 48A has 2.5 Amps, so divide that by how many of the 2ft strips you need to use.
2.5 Amps ÷ 3 strips = 0.83 Amps per strip, a very efficient light.
So the 3 strips are now around 40 watts each.
The more strips you add the lower the amps per strip, they'll run cooler too.
The overall temperature will be the same though.
If you have the possibility of placing the driver outside the cabinet to remove some heat that's ideal too.

There are other strips available too. 1ft single row, 2ft single row F strips
Bridgelux strips and the vesta strips
And I think someone suggested you check out ledgardeners website for ideas.

3ft of height doesn't give you much room to manoeuvre.
I wonder will @zypheruk be about?
He's the expert man for growing in low height.
His scrogs are an art form.
Check out one of his threads here......

Welcome To The White House Rolling Diary 2019

As the title says this will be a rolling diary this year. I will be posting only relevant details on the grow, all pictures will be titled with a description so I shouldn't have to waste time repeating the same info over and over. I will post images of both veg and flowering plants. At the...
www.rollitup.org
I hope that helps
 
stox

stox

Member
Moflow said:
Those 2ft strips are 560 mm in euros so double check theyll fit.
One strip too much intensity of light in the centre. You wouldn't run 1 strip with that driver.
The strips are run about 50 watts each.
2 strips better.
3 strips great. Even spread of light. No central hotspot.

The MW 120h 48A has 2.5 Amps, so divide that by how many of the 2ft strips you need to use.
2.5 Amps ÷ 3 strips = 0.83 Amps per strip, a very efficient light.
So the 3 strips are now around 40 watts each.
The more strips you add the lower the amps per strip, they'll run cooler too.
The overall temperature will be the same though.
If you have the possibility of placing the driver outside the cabinet to remove some heat that's ideal too.

There are other strips available too. 1ft single row, 2ft single row F strips
Bridgelux strips and the vesta strips
And I think someone suggested you check out ledgardeners website for ideas.

3ft of height doesn't give you much room to manoeuvre.
I wonder will @zypheruk be about?
He's the expert man for growing in low height.
His scrogs are an art form.
Check out one of his threads here......

Welcome To The White House Rolling Diary 2019

As the title says this will be a rolling diary this year. I will be posting only relevant details on the grow, all pictures will be titled with a description so I shouldn't have to waste time repeating the same info over and over. I will post images of both veg and flowering plants. At the...
www.rollitup.org
I hope that helps
Click to expand...

hmmm, im a little confused but I think I understand a bit more at the same time. You first mentioned that 1 strip would be enough (2 rows) 2f. But it's better to split the power right?

From what I understood My options are this:
-2f double row Fstrips about 160 diods (50w based on samsung data sheet) x2 strips
-2f single row about 80 diods (25w) x3 strips
-1f double row - about 80 diods (25w) x3 strips
(I can adjust the wattage output on the driver, make sure total aint going higher then 90-100)

aiming for total wattage of about 90-100 - should be enough for 2-3 plants(5L pots)
yes, I can keep the driver outside the box, behind it.

I will see if I can learn something from @zypheruk 's threads. Thanks again @Moflow !

Either way, these still allow for growing closer to the canopy right? that's my main concern.

Seems like on digikey the HLG-120A and the HLG-100A are the same price. I'll just buy the 120 and torn down the little VO adjusters
 
Last edited:
C

christopher jordan

Well-Known Member
stox said:
is a Micro box like this: box 1Wx2.5Lx3H going to be big enough for a 120w Samsung lm301b 3500K + 660nm light? with dimmer. Also not sure If i need IR UV version or not. same price. 1 Plant only

currently Im using this box with CFL's but I want to make a shift to LED and try growing them low and wide. How close can the tips come to plant, pushing it of course. 6"?
Click to expand...
How about getting a 240w and dimming it down. It would probably run about $160 w/delivery. That would cover the length better.
 
Moflow

Moflow

Well-Known Member
christopher jordan said:
How about getting a 240w and dimming it down. It would probably run about $160 w/delivery. That would cover the length better.
Click to expand...
I think that'll be too powerful for 1ft x 2.5ft = 2.5sq ft.
30 watts a sq ft x 2.5 = 75 watts
40 watts a sq ft x 2.5 = 100 watts
50 watts a sq ft x 2.5 = 125 watts
30 - 40 watts per sq ft is all that's needed with top notch Samsung white diodes like the f strips.
That's why @stox was advised to use a driver with less wattage than he thinks he'd need.
 
C

christopher jordan

Well-Known Member
Moflow said:
I think that'll be too powerful for 1ft x 2.5ft = 2.5sq ft.
30 watts a sq ft x 2.5 = 75 watts
40 watts a sq ft x 2.5 = 100 watts
50 watts a sq ft x 2.5 = 125 watts
30 - 40 watts per sq ft is all that's needed with top notch Samsung white diodes like the f strips.
That's why @stox was advised to use a driver with less wattage than he thinks he'd need.
Click to expand...
That's why I'd dim to 50% for flower, and have coverage for the 2.5f. Only 30 bucks more for more effiency and coverage. The lifetime of the fixture is also double. A single panel is pretty short, and not that great of a deal.
 
zypheruk

zypheruk

Well-Known Member
@stox i will answer here in public saves repeating things.
You can certainly go from veg to harvest in that space. I run all single row samsung h-influx lo6 strips in my cab and veg space. The key is to keep each strip running dimmed or enough strips to max out the driver so they all run soft. You will be able to let the canopy get within 2 inches and have no problems. As far as how many watts per foot things get different because of the limited height so no more than 30 max i dont even run mine any where near 30 watts per foot any more as i found anymore than 25 watts in my grows is not required. Forget ir or uv etc in that space it will cause problems. Running scrogs or plants trained for level canopy is the secret sauce and only concentrate on the tops 12 inch is perfect but max 18 inch colas. Look in my diaries as it is all well explained in text and photos and the proof in the harvest no bullshit just honest results and some silly experiments. My cabs being changed after the current grow and adding a third shelf. So things are going to get very interesting.
 
zypheruk

zypheruk

Well-Known Member
Quick pic taken just now of my cab before switching to flower later today.

Excuse the wires hanging everywhere they are just about to be sorted today. I have added a drain to waste tray in the top level and have been doing more testing. Never seen my cab so fucking dirty lol.

IMG_20200308_145940.jpg

IMG_20200308_150003.jpg
 
You must log in or register to reply here.
Top