Mars-Hydro LED Grow Light Discussion

Hi @Budlite , there are some growers suggestions, I conclude like two reasons: :green_heart: Hope you find it helpful. :Namaste:
- The genetic might be not stable
- The plants at the back side get more heat and humidity, so try to move the fan lower to balance the heat and humidity.

growing suggestion.jpg

growing suggestion.jpg

 
Hi @SmokeSara,

I have a couple of SP150s on their way to me, yay!

I believe that MH sells an extension kit to all me to move the drivers outside of the tent, correct? However, I couldn't find that on your website. Can you let me know how I can get 2 of the kits, please?

Thanks!
 
The Bard said:
Hi @SmokeSara,

I have a couple of SP150s on their way to me, yay!

I believe that MH sells an extension kit to all me to move the drivers outside of the tent, correct? However, I couldn't find that on your website. Can you let me know how I can get 2 of the kits, please?

Thanks!
Click to expand...
Hi Bard, great to know you have the new lights on the way. The SP 150 is special design, the drvier cannot be put off as it is with the light itself. So it cannot fit other extention cords. :Namaste:
Also I have to mention,since this light is special design, it cannot be dimmable as well, and it can only be used on either 110~120v or 220~240v voltage, otherwise it might go bad easily. This should be no problem, just not suitable for some bigger commercial growing which needs special voltage. :green_heart:
 
SmokeSara said:
Hi Bard, great to know you have the new lights on the way. The SP 150 is special design, the drvier cannot be put off as it is with the light itself. So it cannot fit other extention cords. :Namaste:
Also I have to mention,since this light is special design, it cannot be dimmable as well, and it can only be used on either 110~120v or 220~240v voltage, otherwise it might go bad easily. This should be no problem, just not suitable for some bigger commercial growing which needs special voltage. :green_heart:
Click to expand...

Thanks! I am glad I checked with you!!

I was able to cancel my original order for 2x SP150s, and instead will go with 1x SP250. It is just for my 2x4 veg tent, so I think coverage and wattage will be good. I also believe that the SP250 has a removable driver with dimming feature? If so, I would still be interested in the extension kit. Look forward to your thoughts back. Thank you, Sara!
 
The Bard said:
Thanks! I am glad I checked with you!!

I was able to cancel my original order for 2x SP150s, and instead will go with 1x SP250. It is just for my 2x4 veg tent, so I think coverage and wattage will be good. I also believe that the SP250 has a removable driver with dimming feature? If so, I would still be interested in the extension kit. Look forward to your thoughts back. Thank you, Sara!
Click to expand...
Hi Bard, yes, one fo the SP 250 will suit better than the SP 150. You can change the order. :) And if you live in US, Canada, Austrilia, then the SP 250 are with the upgraded extention cord, if not , just contact: service@mars-hydro.com to get the extention cords. :)
 
SmokeSara said:
Hi @Budlite , there are some growers suggestions, I conclude like two reasons: :green_heart: Hope you find it helpful. :Namaste:
- The genetic might be not stable
- The plants at the back side get more heat and humidity, so try to move the fan lower to balance the heat and humidity.

growing suggestion.jpg

growing suggestion.jpg

Click to expand...
As far as the heat and humidity, I have rotated the plants more than few times and the result is the same. There are three fans inside the tent and a 6 inch inline with filter circulating also. Temps have been steady 79 - 81 and I have been keeping the humidity between 55 and 65%. And only over 65 on very humid days and just until I turn up the dehumidifier to compensate. I would say an average of 60%. The seeds came from the same vendor as my first grow and they get very good reviews. 420. I guess it can be the genetics. I can only say that I kept a pretty tight feeding schedule using advanced nutrients and all were fed consistently. I am new to growing and all the suggestions are possible. After my own research there is an opinion that the lights are light on red spectrum and also that the 476 watts the lights are drawing even at the very top in efficiency for lights may not be enough to flower 7 plants very well, especially being light on the red. I have no idea other than what I read and the comments here. I'm at a loss. I am contemplating either another sp250 or some other supplemental lighting.
 
Is it possible that the effected plants were exposed to a chemical of some kind? Or a hormone? Other then that I would lean to genetically unstable or the expression of a different phenotype of the strain. The breeders suggested flowering time is 8-9 weeks, but it could always be more. The pistils look white in the pics, based on that I would saw you have at least 3-4 weeks to go, but based on the size of the buds and the white pistils, experience would say 5 weeks more. Do you check the trichomes before harvest?

I investigated into your problem while wasting time and found out more about the strain you are growing. With Durban Poison in its lineage do not be surprised if it takes longer then 8-9 weeks. I am more or less convinced you have a different phenotype and are gonna have to let it run its own flowering schedule. I did not spend a lot of time researching, this is just my best guess based on limited research and information/knowledge.
 
Budlite said:
As far as the heat and humidity, I have rotated the plants more than few times and the result is the same. There are three fans inside the tent and a 6 inch inline with filter circulating also. Temps have been steady 79 - 81 and I have been keeping the humidity between 55 and 65%. And only over 65 on very humid days and just until I turn up the dehumidifier to compensate. I would say an average of 60%. The seeds came from the same vendor as my first grow and they get very good reviews. 420. I guess it can be the genetics. I can only say that I kept a pretty tight feeding schedule using advanced nutrients and all were fed consistently. I am new to growing and all the suggestions are possible. After my own research there is an opinion that the lights are light on red spectrum and also that the 476 watts the lights are drawing even at the very top in efficiency for lights may not be enough to flower 7 plants very well, especially being light on the red. I have no idea other than what I read and the comments here. I'm at a loss. I am contemplating either another sp250 or some other supplemental lighting.
Click to expand...
Hi Budlite, usually we recommend RH above 50% during seeding and veg, but around 40~50% during flowering.
 
labexperiment said:
Is it possible that the effected plants were exposed to a chemical of some kind? Or a hormone? Other then that I would lean to genetically unstable or the expression of a different phenotype of the strain. The breeders suggested flowering time is 8-9 weeks, but it could always be more. The pistils look white in the pics, based on that I would saw you have at least 3-4 weeks to go, but based on the size of the buds and the white pistils, experience would say 5 weeks more. Do you check the trichomes before harvest?

I investigated into your problem while wasting time and found out more about the strain you are growing. With Durban Poison in its lineage do not be surprised if it takes longer then 8-9 weeks. I am more or less convinced you have a different phenotype and are gonna have to let it run its own flowering schedule. I did not spend a lot of time researching, this is just my best guess based on limited research and information/knowledge.
Click to expand...
Thank you labex for the help and input. :)
 
SmokeSara said:
Hi Budlite, if you add another SP 250,maybe will need bigger fan, or adjust some light wattage, to 200w each, I think will be perfect. :circle-of-love:
Click to expand...

Budlite said:
As far as the heat and humidity, I have rotated the plants more than few times and the result is the same. There are three fans inside the tent and a 6 inch inline with filter circulating also. Temps have been steady 79 - 81 and I have been keeping the humidity between 55 and 65%. And only over 65 on very humid days and just until I turn up the dehumidifier to compensate. I would say an average of 60%. The seeds came from the same vendor as my first grow and they get very good reviews. 420. I guess it can be the genetics. I can only say that I kept a pretty tight feeding schedule using advanced nutrients and all were fed consistently. I am new to growing and all the suggestions are possible. After my own research there is an opinion that the lights are light on red spectrum and also that the 476 watts the lights are drawing even at the very top in efficiency for lights may not be enough to flower 7 plants very well, especially being light on the red. I have no idea other than what I read and the comments here. I'm at a loss. I am contemplating either another sp250 or some other supplemental lighting.
Click to expand...

Some strains or phenotypes need more light than others. I had a Sapphire Scout that was happily growing further from the light, and partly shaded by the other plants in the tent. After harvesting the other plants the Sapphire Scout was light burned within two days. I suggest dropping one of the lights closer to the affected plants for a week or so to see if there's an improvement.
 
I want to thank everyone who has responded. I appreciate the help. As far as the struggling plants go, they were not exposed to anything the others weren't and all have gotten the same attention. I was under the impression that these were 7-9 weeks until finished but I know that can vary and intend to let them run their course. Seems like they are still stretching after my morning check. The buds are tiny and spread out up the stems with lots of distance between them. I will continue as I have been and see what happens in the end. The leaves on the furthest along are changing color and dying off already. I'm not sure one of them has more than a week to go and another is not far behind. I am hoping to get those out and harvested with enough time left for the others to further develop with the extra room and light. Not sure if that's logical but what I am hoping for.
Is their anyone who has tried to use 3 sp250s in a 4x4 to flower? I can see how light burn could be a factor. Also I have read that having the drivers turned all the way up can influence the efficiency of the lights. Does that work the opposite way also? Meaning how far down can you turn the driver for less wattage and better efficiency before you reach a point of diminishing return??? It would suck to invest another $250 and not see improvement and have more issues to deal with as far as heat. Or anyone use a flower booster light, full red to suppliment.
Hey Sara, seems to be a market for those red lights and not too many companies offering them. Maybe Mars should come out with one...
 
Budlite said:
I want to thank everyone who has responded. I appreciate the help. As far as the struggling plants go, they were not exposed to anything the others weren't and all have gotten the same attention. I was under the impression that these were 7-9 weeks until finished but I know that can vary and intend to let them run their course. Seems like they are still stretching after my morning check. The buds are tiny and spread out up the stems with lots of distance between them. I will continue as I have been and see what happens in the end. The leaves on the furthest along are changing color and dying off already. I'm not sure one of them has more than a week to go and another is not far behind. I am hoping to get those out and harvested with enough time left for the others to further develop with the extra room and light. Not sure if that's logical but what I am hoping for.
Is their anyone who has tried to use 3 sp250s in a 4x4 to flower? I can see how light burn could be a factor. Also I have read that having the drivers turned all the way up can influence the efficiency of the lights. Does that work the opposite way also? Meaning how far down can you turn the driver for less wattage and better efficiency before you reach a point of diminishing return??? It would suck to invest another $250 and not see improvement and have more issues to deal with as far as heat. Or anyone use a flower booster light, full red to suppliment.
Hey Sara, seems to be a market for those red lights and not too many companies offering them. Maybe Mars should come out with one...
Click to expand...
I've used 3 SP250'S in an 8x6 grow area. Healthy plants & rock hard buds in the end. Best harvest I've ever had.
2019-05-29-07-06-25.jpg

2019-05-29-07-06-25.jpg

Where's Waldo 5/29/19

2019-05-13-10-27-31.jpg

2019-05-13-10-27-31.jpg

Thinned out a bit, post stretch


I don't think you're lacking on light.

:thumb:
 
My best guess would be (if all were the same strain) is that you're seeing 2 distinct phenotypes. Not abnormal at all.

The taller "leggy" plants are exhibiting "sativa leaning" traits. The buds not being as ripe would fit that timeline, as sativa strains tend to run a bit longer anyhow.

They probably got most of that stretching done earlier in their life. Us growers tend to baby our plants at a young age & maybe leave lights higher than necessary. Give em an inch..... they'll take it.

If it were me, I'd just throw the breeder timelines out the window & just let them babies do their thing.

... my .02

:passitleft:
 
SmokeSara said:
Hi Bard, yes, one fo the SP 250 will suit better than the SP 150. You can change the order. :) And if you live in US, Canada, Austrilia, then the SP 250 are with the upgraded extention cord, if not , just contact: service@mars-hydro.com to get the extention cords. :)
Click to expand...

Thanks Sara! Yes, I am in Canada, so I'll wait for deliver of the SP250 to check out the cord, and order an extension only if needed. Appreciate the help. Looking forward to seeing the light in action!
 
Old Salt said:
Some strains or phenotypes need more light than others. I had a Sapphire Scout that was happily growing further from the light, and partly shaded by the other plants in the tent. After harvesting the other plants the Sapphire Scout was light burned within two days. I suggest dropping one of the lights closer to the affected plants for a week or so to see if there's an improvement.
Click to expand...
Thank you old salt for the input as well, how is growing recently? :green_heart:
 
Budlite said:
I want to thank everyone who has responded. I appreciate the help. As far as the struggling plants go, they were not exposed to anything the others weren't and all have gotten the same attention. I was under the impression that these were 7-9 weeks until finished but I know that can vary and intend to let them run their course. Seems like they are still stretching after my morning check. The buds are tiny and spread out up the stems with lots of distance between them. I will continue as I have been and see what happens in the end. The leaves on the furthest along are changing color and dying off already. I'm not sure one of them has more than a week to go and another is not far behind. I am hoping to get those out and harvested with enough time left for the others to further develop with the extra room and light. Not sure if that's logical but what I am hoping for.
Is their anyone who has tried to use 3 sp250s in a 4x4 to flower? I can see how light burn could be a factor. Also I have read that having the drivers turned all the way up can influence the efficiency of the lights. Does that work the opposite way also? Meaning how far down can you turn the driver for less wattage and better efficiency before you reach a point of diminishing return??? It would suck to invest another $250 and not see improvement and have more issues to deal with as far as heat. Or anyone use a flower booster light, full red to suppliment.
Hey Sara, seems to be a market for those red lights and not too many companies offering them. Maybe Mars should come out with one...
Click to expand...
That is why I love this community:420:, everyone is so nice and helpful for each other. I learnd a lot from this site as well. :circle-of-love:
For the red lights you mean , is it only flower spectrum that are mainly red chips? :ganjamon: We will try to upgrade our current full spectrum to be more suitable for flowering, but since not too much clients will need the special spectrum, we usually only accept customize during our slow season, when factory is not that busy. :bong: But thank you as well for the kind advice.
 
The Bard said:
Thanks Sara! Yes, I am in Canada, so I'll wait for deliver of the SP250 to check out the cord, and order an extension only if needed. Appreciate the help. Looking forward to seeing the light in action!
Click to expand...
Hi Bard, did you order from our website? If so, you might need to wait patiently, we currently have two shipments stocked at custom, recently months, the custom are very strict and slow, we are trying to push it everyday, but still have no idea when we can get those two shipments. :( When we get them, will ship to you very soon. :thanks:
 
Hello everyone, I just need to mention again for the paypal payment on our official website: Paypal now accept credit card, or debit card payment directly without a paypal account. If you want to try Credit card or Debit Card, you can check out with paypal, but no need to log in, just use their guest check out, everything will be fine, and it will be a safer way to protect your money. :circle-of-love:

paypal guest check out 2.jpg

paypal guest check out 2.jpg

 
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