Samsung F Series LED Strip Build for a 3x3' (links for ALL parts inc.)
Randomblame
Well-Known Member
Of course you can mix hps and strips and it would also increase the leaf temperatures by a certain margin. Let's say you replace 600w HPS with 400w HPS + 200w strips, leaf temps would be higher as with LED but a bit lower as with 600w HPS(less far red radiation). But you would probably need to use an air conditioner depending on ambient temps to keep the temps at 75°F.
With LED you only need to reduce the ventilation to get the desired 82-86°F and you do not need air conditioning!
In winter it can be easier to combine HPS and LED. In summer, it should be easier with LED. But it depends on where you live and how the local weather conditions are there. In California, Texas or Florida you will almost always need air conditioning, while in Alaska you may be better off with HPS + LED.
I live in a temperate zone, max. 86°F/30°C in summer and coldest was 16°F/-9°C this winter. My room temps are usually between 65 and 72°F or 18 and 22°C.
With LED I need no air conditioning, no heater and no dehumidifier to get my desired tent temps. The whole enviroment is only controlled by air-flow and dimming!
With LED you only need to reduce the ventilation to get the desired 82-86°F and you do not need air conditioning!
In winter it can be easier to combine HPS and LED. In summer, it should be easier with LED. But it depends on where you live and how the local weather conditions are there. In California, Texas or Florida you will almost always need air conditioning, while in Alaska you may be better off with HPS + LED.
I live in a temperate zone, max. 86°F/30°C in summer and coldest was 16°F/-9°C this winter. My room temps are usually between 65 and 72°F or 18 and 22°C.
With LED I need no air conditioning, no heater and no dehumidifier to get my desired tent temps. The whole enviroment is only controlled by air-flow and dimming!
ANC
Well-Known Member
I could easily make a ducted hood for the LEDs, it is just not needed for me.
I'd much rather just mount them on alu square tube and hook those up to a hot water system and radiator, this way you get free hot water for growing weed.
My drivers just arrived for the next two lights.
I'd much rather just mount them on alu square tube and hook those up to a hot water system and radiator, this way you get free hot water for growing weed.
My drivers just arrived for the next two lights.
Randomblame
Well-Known Member
Cold$moke
Well-Known Member
Nice
Yea the set up i have planed is built in two stages
First ill have 4 4 ft f strips and 4 2 ft strips
This will be for supplemental lighting to the gavita 750.
Then if summer heat is too hot was going to add another 4 of each for a total of 8 4fters and 8 2 fters over a 7.5 x6.5 area
3 meanwell 480 b drivers one for the 8 2 ftwrs and 2 for the 8 4 fters
ANC
Well-Known Member
Mine was also planned over two stages, second stage took a few weeks to long though, but the clones did ok under CFL till now.
Will just let them have a week or so under the LEDs before flipping them for the next run which is still 3 weeks out.
I also need to go get some chicken wire to make a hoop for my girls, the colas are starting to get too heavy. for what I have supporting it at the moment.
Will just let them have a week or so under the LEDs before flipping them for the next run which is still 3 weeks out.
I also need to go get some chicken wire to make a hoop for my girls, the colas are starting to get too heavy. for what I have supporting it at the moment.
skoomd
Well-Known Member
Here ya guys go
PPFD @ 12" measured with a lux meter and converted using 0.014505 conversion factor for 3000k samsung LM561C
The red bar represents the open end of the tent
Measurements weren't taken as accurately distanced as they should, but it's good enough for me.
Ill probably throw up another one for 18" distance later today. Knocked my fucking seedling over moving things around to take this one though
so i hope she is okay. But Ill state that @ 18" it's 40-55k lux everywhere so it's quite uniform!
PPFD @ 12" measured with a lux meter and converted using 0.014505 conversion factor for 3000k samsung LM561C
The red bar represents the open end of the tent
Measurements weren't taken as accurately distanced as they should, but it's good enough for me.
Ill probably throw up another one for 18" distance later today. Knocked my fucking seedling over moving things around to take this one though
so i hope she is okay. But Ill state that @ 18" it's 40-55k lux everywhere so it's quite uniform!
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Colo MMJ
Well-Known Member
Here ya guys go
PPFD @ 12" measured with a lux meter and converted using 0.014505 conversion factor for 3000k samsung LM561C
The red bar represents the open end of the tent
Measurements weren't taken as accurately distanced as they should, but it's good enough for me.
Ill probably throw up another one for 18" distance later today. Knocked my fucking seedling over moving things around to take this one though
How big is the box/grid? 4' x 4'?
This thing claims - High PPFD，the PPFD is 1360 μmol/m2/sec at the height of 18 inch. Coverage probably 2x2 $129. I am skeptical
https://www.amazon.com/dp/B0776SDCR...colid=TC2PJ2KPB1PA&psc=0&ref_=lv_ov_lig_dp_it
skoomd
Well-Known Member
3x3 grid, each box is 1 foot different
That 1360 umol/m^2/s is probably only the center reading, and since it is using what looks like pretty tight beam lenses it's probably waaaay lower everywhere else.
Actually yeah, check out this pic they have on it, 50 umol on the edges
I'd avoid buying that
Colo MMJ
Well-Known Member
3x3 grid, each box is 1 foot different
That 1360 umol/m^2/s is probably only the center reading, and since it is using what looks like pretty tight beam lenses it's probably waaaay lower everywhere else.
Actually yeah, check out this pic they have on it, 50 umol on the edges
I'd avoid buying that
Thanks. I looked at your rig and you said about $405 shipped to you. Did you source it from one place? The price is really good especially including shipping??/ I am not sure how it is possible???>
skoomd
Well-Known Member
I sourced it from a few places
I didnt have to pay shipping for the frame because the distribution center is near me so I did local pickup
And I got a great deal on the driver from arrow (was about 20-30$ less than from mouser) plus they gave me free 1 day shipping (should probably edit my OP with the link for that)
Couple of the bits ordered using free amazon prime shipping
Humple
Well-Known Member
Dude, you have to stop looking at Amazon lights and then asking us about them! We've told you over and over again to avoid those things, and we've told you over and over again what kind of light you should get if you're going LED. Personally, I'm going to once again suggest you stick with HPS - it won't get any simpler or easier than that.
Edit: People want to help you. They really do. However, if you're going to ask but not listen, people are going to get tired of trying to help. Just put cheap Amazon lights out of your mind, bro. Don't even consider them an option! Once you've done that, you may make some progress in your search. Best of luck.
skoomd
Well-Known Member
Wow guys, I must say I am very impressed with this build. I just took another chart for PPFD @ 18" and not only is the uniformity unbelievably good, but the PPFD only went from 727 @ 12" to 695 PPFD @ 18". Remarkable! I think this also proves 100% that more light sources = better light penetration! @nfhiggs
Here is the HLG 300 for comparison, with 602 PPFD @ 18"
Here is the HLG 300 for comparison, with 602 PPFD @ 18"
nfhiggs
Well-Known Member
Gotta love them strips. I got mine all put together but its not in the cabinet yet, its on my kitchen table.Wow guys, I must say I am very impressed with this build. I just took another chart for PPFD @ 18" and not only is the uniformity unbelievably good, but the PPFD only went from 727 @ 12" to 695 PPFD @ 18". Remarkable! I think this also proves 100% that more light sources = better light penetration! @nfhiggs
Here is the HLG 300 for comparison, with 602 PPFD @ 18"
skoomd
Well-Known Member
I can't wait to see what they do in flower. I got a lovely little seedling (honey bananas from elemental seeds) growing under the light right now and she is doing great. I think it's a great strain to see what the strips can do. The uniformity will make things very forgiving. Didn't like running 100w strips in the other grow, got bleaching in areas and penetration wasnt what i'd like.
Knocked her over taking the first chart but she is totally fine now. I was planning on doing 2 but one of the seeds never germinated, not surprised though because the seeds looked really small and a bit immature when I got em.
Here's a pic of her, 6 days from sprouting surface
My VPD is trash right now though. Only way my humidity is gonna get into optimal levels is when the plant gets bigger and starts transpiring a lot more. At least that's how all my last grows have went. Once my tents fill up it goes from 20-30% up to 40-60%.
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skoomd
Well-Known Member
Yep, 10 LT562B strips. And I actually realized that it was 320-330 watts at the strips or so, not 313w. It's exactly 350w at the wall at full power.
The whole fixture is exactly 24x30" in size, and the strips are spaced out approximately 2 inches from each other.
Randomblame
Well-Known Member
skoomd
Well-Known Member
I'm just gonna stick with the one lady. Ill be using a scrog to fill out the space so it'll just take a bit longer than usual. I use a really airy soil blend and fabric pots too of course so my veg speeds tend to be pretty fast once things get rolling.
I have a C99 seed from G13 labs I could pop but I think im just gonna roll with this one plant. I'm pretty sure the quality id get from the C99 wouldnt hold a candle to the honey bananas anyways.
Randomblame
Well-Known Member
Do not underestimate the C99 Cinderella, it can be surprisingly good. Although I only know the old C99, which was based on Jack Herer genetics, but was only available as a cutting back in the early 90ies.
Many breeders have tried to capture the potential of this awesome strain and get it in a seed variety. I do not know how well G13 labs did it, but C99 can be a very special genetics.