LED Requirements for 80cm x 60cm x 70cm tent

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crispytriceps

Member
Hello guys!
I am looking into investing in a led grow light panel. However, I am wondering which one I should get to cover this small space. Since the high is only 70cm (27in) I am afraid that the light would hang too low close to the plant. Any recommendations? Which ones should I get?

And when they say 18in away do they mean from the floor or the plant itself? As the plant grows do people get the panel higher up?


Thank you all!
 
Randomblame

Randomblame

Well-Known Member
Get 7-14 Bridgelux EBgen.2 strips in 3500°k and 2ft. length from digikey and a Meanwell HLG-185H-20A driver from mousser or tme.eu. Get some alu L channel and make a frame to mount the strips on. With only 7 strips(~1,4A per strip) you need additional c-channels for cooling. With 10-14 strips they can do it without.
Would be ~200-220w and up to 175lm/w(14 strips) and min. 164lm/w(7 strips). Recommended are 30-35w/sft., that's a bit more but there is a build in dimmer to dimm it down to 50%. Leave the voltage regulator where it is and connect all the strips in parallel to the dc output of the driver. That's it!
Visit LEDgardeners website for wiring examples, there is also a calculator tool if you prefer F or Q-series strips from Samsung. But you well see in the most examples EBgen2 is cheaper and often more efficient.
And the best, strips allow a very short distance to the canopy. Yours is so small that you probably have enough light with an HLG-120H-20A. You can then you can take correspondingly fewer strips.

~7$ shipped but currently out of stock. But surely only a matter of days..
https://www.digikey.de/product-detail/de/bridgelux/BXEB-L0560Z-35E2000-C-B3/976-1734-ND/7907663

47$ HLG-185H-20A
https://www.tme.eu/en/details/hlg-185h-20a/led-power-supplies/mean-well/
 
Randomblame

Randomblame

Well-Known Member
With low driven EB strips(0,7A), you can theoretically touch the lamp without getting burnt and have a homogeneous coverage at just 4"/10cm, so stripes are the perfect solution for your area, and by the way one of the most efficient solutions of all.
 
C

crispytriceps

Member
Randomblame said:
With low driven EB strips(0,7A), you can theoretically touch the lamp without getting burnt and have a homogeneous coverage at just 4"/10cm, so stripes are the perfect solution for your area, and by the way one of the most efficient solutions of all.
Click to expand...
Thanks a lot for your reply however I am not crafty at all :P i’m just looking into buying a led panel from Amazon and ship it. I live in a country where these things are not very accessible. Do the 300W Led Panel grow lights work in my space?
 
casperd

casperd

Well-Known Member
crispytriceps said:
Thanks a lot for your reply however I am not crafty at all :P i’m just looking into buying a led panel from Amazon and ship it. I live in a country where these things are not very accessible. Do the 300W Led Panel grow lights work in my space?
Click to expand...
need a larger w due to china leds produce about half the claim from the wall 600w viperspectra cheap most would rip it apart but who wants to spend 1500 on a tent light when can fill a garage with hps 4 that
 
Randomblame

Randomblame

Well-Known Member
Nope, Viparspectra does not work in your space! 70cm means less than 30cm between lamp and canopy!
Digikey ships worldwide and has foreign trade camps around the globe(hope the term is correct), also in the EU. No customs to pay! With tmu.eu it's the same!
There is no need for special skills, cut the channels in length, drill a few holes and connect the strips with Wago's. It's so easy a child could do it. The Vipar thingys have lenses and create a strong hotspot in the center. If you only have 30-40cm usable height, they are totally unsuitable!
All who have agreed you could should read the OP again before giving advice that can costs hundreds of euros, dollars or whatever.

You could also take a Quantumboards, two of them cover your area nicely and you can still use one driver to drive them in parallel. A HLG-150H-54A is siutable for 2 boards and there is also no need for a heatsink at 75w per board.
Trust me, in such a small space you can't get around LED strips if you want to achieve something.
With lamps like the Viparspectra you will get no useful results but lots of burned/bleached leaves and in the end you will end up with strips or QB's anyway. It's simply the best solution for such a limited height!
May I ask where are you from?
You can also get QB132-kits(65w) from am4zon.com, two of them would be another siutable solution.
So either you agree with that or you need to enlarge your area/heights!
 
C

crispytriceps

Member
Randomblame said:
Nope, Viparspectra does not work in your space! 70cm means less than 30cm between lamp and canopy!
Digikey ships worldwide and has foreign trade camps around the globe(hope the term is correct), also in the EU. No customs to pay! With tmu.eu it's the same!
There is no need for special skills, cut the channels in length, drill a few holes and connect the strips with Wago's. It's so easy a child could do it. The Vipar thingys have lenses and create a strong hotspot in the center. If you only have 30-40cm usable height, they are totally unsuitable!
All who have agreed you could should read the OP again before giving advice that can costs hundreds of euros, dollars or whatever.

You could also take a Quantumboards, two of them cover your area nicely and you can still use one driver to drive them in parallel. A HLG-150H-54A is siutable for 2 boards and there is also no need for a heatsink at 75w per board.
Trust me, in such a small space you can't get around LED strips if you want to achieve something.
With lamps like the Viparspectra you will get no useful results but lots of burned/bleached leaves and in the end you will end up with strips or QB's anyway. It's simply the best solution for such a limited height!
May I ask where are you from?
You can also get QB132-kits(65w) from am4zon.com, two of them would be another siutable solution.
So either you agree with that or you need to enlarge your area/heights!
Click to expand...
I live in the middle east so amazon is the only thing that delivers here :( any other alternatives?
 
1

1212ham

Well-Known Member
Randomblame said:
Nope, Viparspectra does not work in your space! 70cm means less than 30cm between lamp and canopy!
Digikey ships worldwide and has foreign trade camps around the globe(hope the term is correct), also in the EU. No customs to pay! With tmu.eu it's the same!
There is no need for special skills, cut the channels in length, drill a few holes and connect the strips with Wago's. It's so easy a child could do it. The Vipar thingys have lenses and create a strong hotspot in the center. If you only have 30-40cm usable height, they are totally unsuitable!
All who have agreed you could should read the OP again before giving advice that can costs hundreds of euros, dollars or whatever.

You could also take a Quantumboards, two of them cover your area nicely and you can still use one driver to drive them in parallel. A HLG-150H-54A is siutable for 2 boards and there is also no need for a heatsink at 75w per board.
Trust me, in such a small space you can't get around LED strips if you want to achieve something.
With lamps like the Viparspectra you will get no useful results but lots of burned/bleached leaves and in the end you will end up with strips or QB's anyway. It's simply the best solution for such a limited height!
May I ask where are you from?
You can also get QB132-kits(65w) from am4zon.com, two of them would be another siutable solution.
So either you agree with that or you need to enlarge your area/heights!
Click to expand...
This ^^^^
 
Randomblame

Randomblame

Well-Known Member
As I said, Quantumboards's are sometimes available on am4zon.com. Can you order stuff from alibaba china? You could get strips and boards also from there. Or from e3ay?

We recently had someone from SA and after some back and forth he could get stripes from digikey.


Get two of this boards. 4000°k is a good all-in-one spectrum and keeps the plants short and bushy.
https://www.amazon.com/Quantum-Board-Grow-Bloom-4000K/dp/B076QDKVDZ/ref=sr_1_2?ie=UTF8&qid=1526578439&sr=8-2&keywords=quantum+board

If you can get them without driver you could use a bigger one to run both in parallel. Bigger drivers offers at least 50-100% dimming. Maybe contact the seller and ask for a deal with a siutable HLG-150.
 
1

1212ham

Well-Known Member
I was just thinking, with so little vertical space, boards or strips are the way to go.
 
Last edited:
gwheels

gwheels

Well-Known Member
I have a 135 watt quantum board. I put it in a simliar grow box and it was way too bright and the temp went to 40 celcius. My crappy mars 48 reflector works better in the space max temp is 28 C and it doesnt burn the plants.

The quantum board is going in a 20 x 36 x 62 inch tent. It is enough light for that size. I think quantum strips in the 65 to 100 watt size is perfect or a couple of citizen cobs (2 X 50 watts) would work well. I used to run my 200 watt vero at half power and it worked great but I use it full power somewhere else.
 
C

crispytriceps

Member
I tried to do some research but all the above mentioned are not shippable here or are out of stock. Since I do not understand much about electricity and how all these boards work, will I be able to find something that's already made that I can purchase and put? I have already killed 3 seeds and I am trying to find an optimal solution with less of my DIY interference as the clumsy person I am will definitely fuck it up. While getting a bigger tent is not an option (only tent available for purchase here), can I get any premade led board or anything of that kind?
QB and Led Strips are hard to find and they seem to require a lot of wiring and I am really clueless with crafts.


Thank you,
 
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