What led would you put in a 2x4x5
- Thread starter Doomboy15
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MidnightSun72
Well-Known Member
The HLG 300 is the perfect wattage for your space. 30-40w/sqft.
You can go even less for autos since you can run 18/6 to hit your DLI.
LEDTonic - Daniel
Active Member
I understand that many growers here are very pro HLG, which is fair, but I'd like to throw our LEDTonic Q7 into the mix for you to consider. I'm attaching the PPFD maps of it in a 2x4 space. In terms of light uniformity, I think it's difficult to beat it, even with strips.
I'm also overlaying our PPFD map over the HLG 300R so it's easier to compare the two. I couldn't find any official PPFD maps from HLG in a 2x4 space so I had to take the PPFD maps from here:
As I understand it, the red numbers are accurate for the 2-board 300R. I've overlaid our map on top of the HLG 300's map and to make the comparison as fair as possible I selected a PPFD map of ours where the maximum PPFD value is similar to the HLG 300R's maximum, that is to say 1010.
Both lamps use Samsung 301H diodes but the advantage with ours is that you have two panels that can be height and sideways adjusted independently from one another. They can also be angled any way you see fit.
The HLG has a total light output (PPF) of 700 µmol/s according to their site whereas the Q7 clocks in at 835 µmol/J [EDIT: typo, should be µmol/s -- not µmol/J], putting out 19% more light.
We'd be happy to match the 300R's price of $399 for a Rollitup user. Just shoot us an email and we'll send you a discount code.
More info: https://www.ledtonic.com/products/q7-led-grow-light
If you have any further questions, I'm always happy to help.
I'm also overlaying our PPFD map over the HLG 300R so it's easier to compare the two. I couldn't find any official PPFD maps from HLG in a 2x4 space so I had to take the PPFD maps from here:
Sensational HLG 300L Rspec the Brightest & Best LED Quantum boards!
Why choose HLG 300L Rspec LED Grow light? Because HLG LEDS are the only grow lights built with Samsungs' Top-bin brightest LED diodes giving you more yield per watt!
hlg-uk-europe.com
As I understand it, the red numbers are accurate for the 2-board 300R. I've overlaid our map on top of the HLG 300's map and to make the comparison as fair as possible I selected a PPFD map of ours where the maximum PPFD value is similar to the HLG 300R's maximum, that is to say 1010.
Both lamps use Samsung 301H diodes but the advantage with ours is that you have two panels that can be height and sideways adjusted independently from one another. They can also be angled any way you see fit.
The HLG has a total light output (PPF) of 700 µmol/s according to their site whereas the Q7 clocks in at 835 µmol/J [EDIT: typo, should be µmol/s -- not µmol/J], putting out 19% more light.
We'd be happy to match the 300R's price of $399 for a Rollitup user. Just shoot us an email and we'll send you a discount code.
More info: https://www.ledtonic.com/products/q7-led-grow-light
If you have any further questions, I'm always happy to help.
Last edited:
MidnightSun72
Well-Known Member
can you explain why you are citing umol/s for one fixture and umol/j for another? They are not the same figure at all. One is in respect to power. The other is in respect to the fixtures photon output per second.I understand that many growers here are very pro HLG, which is fair, but I'd like to throw our LEDTonic Q7 into the mix for you to consider. I'm attaching the PPFD maps of it in a 2x4 space. In terms of light uniformity, I think it's difficult to beat it, even with strips.
View attachment 4847400
I'm also overlaying our PPFD map over the HLG 300R so it's easier to compare the two. I couldn't find any official PPFD maps from HLG in a 2x4 space so I had to take the PPFD maps from here:
Sensational HLG 300L Rspec the Brightest & Best LED Quantum boards!
Why choose HLG 300L Rspec LED Grow light? Because HLG LEDS are the only grow lights built with Samsungs' Top-bin brightest LED diodes giving you more yield per watt!hlg-uk-europe.com
As I understand it, the red numbers are accurate for the 2-board 300R. I've overlaid our map on top of the HLG 300's map and to make the comparison as fair as possible I selected a PPFD map of ours where the maximum PPFD value is similar to the HLG 300R's maximum, that is to say 1010.
View attachment 4847410
Both lamps use Samsung 301H diodes but the advantage with ours is that you have two panels that can be height and sideways adjusted independently from one another. They can also be angled any way you see fit.
The HLG has a total light output (PPF) of 700 µmol/s according to their site whereas the Q7 clocks in at 835 µmol/J, putting out 19% more light.
We'd be happy to match the 300R's price of $399 for a Rollitup user. Just shoot us an email and we'll send you a discount code.
More info: https://www.ledtonic.com/products/q7-led-grow-light
If you have any further questions, I'm always happy to help.
also can you explain your process for insuring that you have authentic Samsung Lm301h or b or whatever. I believe the Chinese manufacturer just install whatever diode and lie and at its Samsung.Do purchase the diodes for the factory yourself?
LEDTonic - Daniel
Active Member
Sorry, you're absolutely right. It was a typo on my end. It should be µmol/s for both, obviously.
Our data is visible here (and on the spectrum report on the same page): https://www.ledtonic.com/pages/q7-product-info, if anyone wants to confirm that I don't make stuff up.
Thanks for noticing.
Our data is visible here (and on the spectrum report on the same page): https://www.ledtonic.com/pages/q7-product-info, if anyone wants to confirm that I don't make stuff up.
Thanks for noticing.
MidnightSun72
Well-Known Member
I didn't say anything about you making stuff up. So do you have a process that you follow to know that your diodes come from Samsung and not a copy cat? I found a lot of sellers that manufacture in China just go by what the factory says. But in fact if you probe these manufactures they will admit they are using non somsung parts and saying they are.
All that being said I've seen amazing grows with even weird knock off lights so they work whether or not they are real Samsung or not. No question there.
Just asking for my own curiosit how North American suppliers QC the products coming to us.
Thanks
LEDTonic - Daniel
Active Member
No, I realize you didn't accuse me of anything, I was just trying to be as clear and transparent as I possibly could. This was in no way meant as a peak to you. From my own experience I see people and manufacturers throw around numbers and claims all over the internet so whenever I present any data, I try to back it up with some kind of tests or supporting documents.
Regarding our diodes, we test the efficacy of each received batch of diodes to make sure they are performing as they should. We work with a major PCB manufacturer who has a long and established relations with the diode suppliers. They have been partners for years and the volumes that are ordered are significant. This results in us getting reliable flow of high bin diodes and the risk of getting a lesser product is almost non existent. But again, we check the performance of the diodes with a sphere to see their efficacy (PPE).
We've also done independent safety and performance tests with Intertek, an international conformity laboratory, to verify our data.
I fully understand where you're coming from. We've been to China and met with a dozen of various "full package" manufacturers but in the end we didn't use any of them because of their unreliability and poor transparency.
Yea, I mean, weed will grow even with terrible conditions but in our opinion, product specs should still be transparent so that customers get what they pay for. If someone wants a cheap lamp and are fine with less than ideal specs, that's their choice. But when brands intentionally inflate their numbers and performance reports, and end up charging a premium, that's what frustrates on. On paper a bad light would appear to be as good as a premium light, where in fact it's far from it.
I recommend everyone to watch Albo Pepper's YT video where he shows how Mars, Spider, Vipar, etc are lying about their specs:
Regarding our diodes, we test the efficacy of each received batch of diodes to make sure they are performing as they should. We work with a major PCB manufacturer who has a long and established relations with the diode suppliers. They have been partners for years and the volumes that are ordered are significant. This results in us getting reliable flow of high bin diodes and the risk of getting a lesser product is almost non existent. But again, we check the performance of the diodes with a sphere to see their efficacy (PPE).
We've also done independent safety and performance tests with Intertek, an international conformity laboratory, to verify our data.
I fully understand where you're coming from. We've been to China and met with a dozen of various "full package" manufacturers but in the end we didn't use any of them because of their unreliability and poor transparency.
Yea, I mean, weed will grow even with terrible conditions but in our opinion, product specs should still be transparent so that customers get what they pay for. If someone wants a cheap lamp and are fine with less than ideal specs, that's their choice. But when brands intentionally inflate their numbers and performance reports, and end up charging a premium, that's what frustrates on. On paper a bad light would appear to be as good as a premium light, where in fact it's far from it.
I recommend everyone to watch Albo Pepper's YT video where he shows how Mars, Spider, Vipar, etc are lying about their specs:
ilovereggae
Well-Known Member
Definitely interesting lights, I like the simplicity of this design and the fact that you don't need additional heatsinks. How many diodes are on each Q7 board? Also do you have single boards with say a 150W driver available? Can we buy your boards without drivers or as DIY kits?
LEDTonic - Daniel
Active Member
Hey, thanks for the questions. I'll answer them here but I'd like to invite you to message us directly if you later have any follow-up question as to not hijack this thread from OP.
When we designed the Q7, one of our dilemmas was whether or not to use heatsinks. The pros with a heatsink is that there's more metal that is in contact with air so heat dissipation increases This means that diodes can be pushed harder without losing efficacy or seeing too high temperatures.
The pros of not using a heatsink is that the lamp is much lighter and there's one less part to worry about. A low-weight lamp is cheaper to ship (i.e. the final price to customer will be lower) and the cost savings of not adding a heatsink is also passed on to the customer.
We decided go without a heat sink and instead make the PCB large enough to run cool, even at maximum power. A larger PCB also helps with increased light coverage. The lighter weight of the PCB also makes it a bit easier to handle and work with, plus we like the slim design
.
Each PCB uses 416 Samsung 301H diodes, so the entire Q7 has 832 diodes in total. What no one seems to be doing, except for us, is to arrange the diodes with an increased density farther away from the center. This again creates a better light coverage by reducing center hot spots and increase the reach of the light.
We are working on "half a Q7", i.e. a single board lamp, that will be running at 160W (160W draw power, 150W output to board) with a MeanWell XLG-150 driver. We expect to have this lamp available in about 2-3 months.
At the moment we do not sell the boards separately as DIY kits but if you're interested in one we can likely arrange it, although it may take a bit of doing (and thus non-instant shipping).
When we designed the Q7, one of our dilemmas was whether or not to use heatsinks. The pros with a heatsink is that there's more metal that is in contact with air so heat dissipation increases This means that diodes can be pushed harder without losing efficacy or seeing too high temperatures.
The pros of not using a heatsink is that the lamp is much lighter and there's one less part to worry about. A low-weight lamp is cheaper to ship (i.e. the final price to customer will be lower) and the cost savings of not adding a heatsink is also passed on to the customer.
We decided go without a heat sink and instead make the PCB large enough to run cool, even at maximum power. A larger PCB also helps with increased light coverage. The lighter weight of the PCB also makes it a bit easier to handle and work with, plus we like the slim design
.Each PCB uses 416 Samsung 301H diodes, so the entire Q7 has 832 diodes in total. What no one seems to be doing, except for us, is to arrange the diodes with an increased density farther away from the center. This again creates a better light coverage by reducing center hot spots and increase the reach of the light.
We are working on "half a Q7", i.e. a single board lamp, that will be running at 160W (160W draw power, 150W output to board) with a MeanWell XLG-150 driver. We expect to have this lamp available in about 2-3 months.
At the moment we do not sell the boards separately as DIY kits but if you're interested in one we can likely arrange it, although it may take a bit of doing (and thus non-instant shipping).
ilovereggae
Well-Known Member
awesome. not in the market at the moment personally but always have friends asking, and a 160W single board would be a solid alternative to a HLG 135W Qb288 DIY kit.Hey, thanks for the questions. I'll answer them here but I'd like to invite you to message us directly if you later have any follow-up question as to not hijack this thread from OP.
When we designed the Q7, one of our dilemmas was whether or not to use heatsinks. The pros with a heatsink is that there's more metal that is in contact with air so heat dissipation increases This means that diodes can be pushed harder without losing efficacy or seeing too high temperatures.
The pros of not using a heatsink is that the lamp is much lighter and there's one less part to worry about. A low-weight lamp is cheaper to ship (i.e. the final price to customer will be lower) and the cost savings of not adding a heatsink is also passed on to the customer.
We decided go without a heat sink and instead make the PCB large enough to run cool, even at maximum power. A larger PCB also helps with increased light coverage. The lighter weight of the PCB also makes it a bit easier to handle and work with, plus we like the slim design
Each PCB uses 416 Samsung 301H diodes, so the entire Q7 has 832 diodes in total. What no one seems to be doing, except for us, is to arrange the diodes with an increased density farther away from the center. This again creates a better light coverage by reducing center hot spots and increase the reach of the light.
We are working on "half a Q7", i.e. a single board lamp, that will be running at 160W (160W draw power, 150W output to board) with a MeanWell XLG-150 driver. We expect to have this lamp available in about 2-3 months.
At the moment we do not sell the boards separately as DIY kits but if you're interested in one we can likely arrange it, although it may take a bit of doing (and thus non-instant shipping).
KonopCh
Well-Known Member
If I want to cover 4x4 tent with Q7, I need to spend 1000 british pounds (that's around 1160€). 4 panels with two drivers.
If I buy ZEUS XT boards, 4 of them are 400€ and if I buy better MW driver HLG I get better light for 520€.
If I want to spend 1160€ I should rather buy lights from Australia, still cheaper than your light (including shipping and taxes). And it has the best spectrum in this business no doubt.
So... where's catch you're offering less than other companies? Not to mention other great companies like HLG, Gavita, Meiju, Kingbrite which has all better spectrum than plain white 3500K Samsung diodes.
If I buy ZEUS XT boards, 4 of them are 400€ and if I buy better MW driver HLG I get better light for 520€.
If I want to spend 1160€ I should rather buy lights from Australia, still cheaper than your light (including shipping and taxes). And it has the best spectrum in this business no doubt.
So... where's catch you're offering less than other companies? Not to mention other great companies like HLG, Gavita, Meiju, Kingbrite which has all better spectrum than plain white 3500K Samsung diodes.
No extra 660nm red ?I understand that many growers here are very pro HLG, which is fair, but I'd like to throw our LEDTonic Q7 into the mix for you to consider. I'm attaching the PPFD maps of it in a 2x4 space. In terms of light uniformity, I think it's difficult to beat it, even with strips.
View attachment 4847400
I'm also overlaying our PPFD map over the HLG 300R so it's easier to compare the two. I couldn't find any official PPFD maps from HLG in a 2x4 space so I had to take the PPFD maps from here:
Sensational HLG 300L Rspec the Brightest & Best LED Quantum boards!
Why choose HLG 300L Rspec LED Grow light? Because HLG LEDS are the only grow lights built with Samsungs' Top-bin brightest LED diodes giving you more yield per watt!hlg-uk-europe.com
As I understand it, the red numbers are accurate for the 2-board 300R. I've overlaid our map on top of the HLG 300's map and to make the comparison as fair as possible I selected a PPFD map of ours where the maximum PPFD value is similar to the HLG 300R's maximum, that is to say 1010.
View attachment 4847410
Both lamps use Samsung 301H diodes but the advantage with ours is that you have two panels that can be height and sideways adjusted independently from one another. They can also be angled any way you see fit.
The HLG has a total light output (PPF) of 700 µmol/s according to their site whereas the Q7 clocks in at 835 µmol/J [EDIT: typo, should be µmol/s -- not µmol/J], putting out 19% more light.
We'd be happy to match the 300R's price of $399 for a Rollitup user. Just shoot us an email and we'll send you a discount code.
More info: https://www.ledtonic.com/products/q7-led-grow-light
If you have any further questions, I'm always happy to help.
Arkos
Well-Known Member
Plus you'd be buying of a company located at Thomas Edison street, what more do you need to know when buying a light ?
tstick
Well-Known Member
In my opinion....ANY new lighting company who is interested in getting with the weed grower crowd, had better consider that their light need to be WAY better and cost WAY less than anything else. There are too many really good lights out there already. Unless a new company has come up with a totally new technology that is crazy efficient and has all the reds and UV and quality components that everyone wants....AND can offer it at a lower price than anyone else, then why would anyone not just choose to go with an already-established company? I think a new company NEEDS to come up with an all-new technology like lasers or something. Otherwise, the current market is flooded with Samsung diode-based lights of one type or another. Not saying that these are bad lights...but where is the enticement for me to look twice?