Mars-Hydro LED Grow Light Discussion

[Mars Hydro]

Jae416ixside,everytime when you are looking at yor girls,you must be very pleased,cos i am

144x5 reflector G.C week3 flower

 

[Mars Hydro]

wow,your girls are catching up with each other...that is wonderful everyday they will surprise you

Twin 48x5w Reflectors and a Mars II 400 powering my autoflower tent.

I Love these lights and my plants love them too.

​

KiG Everyone Cheers

 

[ConstantGreen]

SmokeSara, if you don't mind me asking in your thread... How many watts per square foot (or per square meter - I have a calculator, lol) are your customers running with your products? Having never had the opportunity to grow with LEDs, I have (primarily) used HPS to flower. As I like sativas and sativa-leaning hybrids more than indicas, I have often ran 75... even up to a maximum of just over 100 watts per square foot. But that is an extreme amount of heat in a confined space, lol. And I understand that LEDs are - in theory, at least - more efficient than HPS for growing plants. So I was just curious. Would you mind if people posted how many watts per square foot of lighting they used in their grows, and whether the strains that they grow are predominately sativa or indica? (If you DO mind, just let me know and I will see if I can have a staff member delete this post.)

You could look at the true watts of any light and then the space someone uses it in and calculate it yourself. My first two grows in my sig were with the Mars 1200 which pulls about 520 watts. I used it in a 3x3 space, so about 57 watts per sq. ft. My first grow was a hybrid and the second was hybrid & sativa. But I haven't grown enough different hybrids or sativas to tell any difference at 57w/sq.ft.

They say the 1200 can cover a 4x4 area but I wouldn't trust just 32 watts per sq. ft. - probably only enough to veg a 4x4.

 

[Mars Hydro]

Usually, we recommend during Veg stage,you only turn the growth switch on, but if you think your power is not enough, you can turn both growth and bloom switches on.
It will not be a waste,you just need to adjust it according to the react of your plants.

Is it a waste to have full spectrum on for seedlings and veg cycle?

 

[Mars Hydro]

Morning TortureSoul.it's no problem,you can talk freely here.I'd like to share informations here.
Well,different light,the watts for per square meter is different.For example,the Mars II 900,the power consumptions is around 387w,the coverage is 3.5'x3.5'=12.25square meter,so it is about 31.6w per square meter.For Mars II 1600,the power consumption is about 706w,the coverage is 4.2'x4.2'=17.64square meter,so it's about 40w per square meter.
Sure you can share any informations with us

SmokeSara, if you don't mind me asking in your thread... How many watts per square foot (or per square meter - I have a calculator, lol) are your customers running with your products? Having never had the opportunity to grow with LEDs, I have (primarily) used HPS to flower. As I like sativas and sativa-leaning hybrids more than indicas, I have often ran 75... even up to a maximum of just over 100 watts per square foot. But that is an extreme amount of heat in a confined space, lol. And I understand that LEDs are - in theory, at least - more efficient than HPS for growing plants. So I was just curious. Would you mind if people posted how many watts per square foot of lighting they used in their grows, and whether the strains that they grow are predominately sativa or indica? (If you DO mind, just let me know and I will see if I can have a staff member delete this post.)

 

[TorturedSoul]

Morning TortureSoul.it's no problem,you can talk freely here.I'd like to share informations here.
Well,different light,the watts for per square meter is different.For example,the Mars II 900,the power consumptions is around 387w,the coverage is 3.5'x3.5'=12.25square meter,so it is about 31.6w per square meter.For Mars II 1600,the power consumption is about 706w,the coverage is 4.2'x4.2'=17.64square meter,so it's about 40w per square meter.
Sure you can share any informations with us

Err... I think you might mean square feet, lol? 12.25 ft² equals approximately 1.138 m², and 17.64 ft² equals approximately 1.639 m². 31.6 or 40 watts per m² isn't likely to grow anything (mushrooms, maybe), while 31.6 or 40 watts per ft²... Well, I'd consider it pretty inadequate for anything (where cannabis is concerned) other than vegetative growth if these numbers were in regards to high pressure sodium lighting. But even I - someone who has happily used them off and on for years - realize that they're pretty inefficient in PAR. Presumably, LED lighting is more efficient (and, hopefully, significantly more so).

I am just trying to get a broad estimate of what kind of watts per square foot (or... square meter ) of LED lighting it takes to grow sativas if one expects to have a harvest that is not overly airy (/leafy). I thought it might help me if people chimed in with their observations. Actually, this would probably help future customers better decide how much light they need for their space (or, alternatively, how much space they can truly cover with their lights). Cannabis is very much a "light loving" plant, so numbers which are good estimates for indoor agriculture in general - which many companies tend to use when advertising, figuring coverage, et cetera (possibly for legal purposes, I suppose) - may not be entirely accurate for the plant that most of us grow indoors.

 

[gudyul]

Tortured soul , firstly let me say that I love your handle, where does it originate? My experience with mars 1200 (2) and 144 x 5 reflector are thus, they seem to work synergenically in a 2.5-3 footprint , every other one etc, not sure how to calculate overlapping watts... Stand alone they may not do so well. My Plants acclimatize and get as close as 8 inch (depending on strain ?) good size , dense bush penetration, is about 8 inches so start 12/12 early on. I replace the burnt out blue diodeds with reds on the 1200's. THe 144's don't seem to have as many issues with burnt out diods n drivers. Too many watts like 1200 with 144/s back to back will bleach the tops. I would recommend some adequate spacing of 1.5 foot minimum ( in my world, RDWC, NPK, Skunk 11, 40-60 Humidity , 85-75 temp +silica+cal-mag + sulfuric acid ) prolly same thing for hi brix .

 

[kalijah]

Has anyone else had problems ordering a light with sara. I'm asking to upgrade delivery as I see that the eBay store use yodel 24 hour but I'm just being told no they don't and I have to wait 3-5 days for delivery.surely paying hundreds of pounds should warrant a decent delivery service.im not being an ass just a normal customer.

 

[Mars Hydro]

Friday arrived at my mind,i thought today is Thursday....well,wish everyone have a nice weekend
Next Monday and Tuesday,our USA repair center will take two days off,if anyone need replace parts or need repair your light,please wait till Wednesday.I'm sorry for the inconvenience.

 

[Mars Hydro]

thanks for your help Versai,the coverage we recommed is based on the hanging distance 24"-30"from the top of your canopy.Every grower need to adjust it to a better distance according to the react of their plants
how is your girls recently?Hope they have a happy growing.

You could look at the true watts of any light and then the space someone uses it in and calculate it yourself. My first two grows in my sig were with the Mars 1200 which pulls about 520 watts. I used it in a 3x3 space, so about 57 watts per sq. ft. My first grow was a hybrid and the second was hybrid & sativa. But I haven't grown enough different hybrids or sativas to tell any difference at 57w/sq.ft.

They say the 1200 can cover a 4x4 area but I wouldn't trust just 32 watts per sq. ft. - probably only enough to veg a 4x4.

 

[Mars Hydro]

haha,my mistake.yeah i mean per square feet,after you finish your broad estimate,you must show me,i'm interested in it too,life is a learning process

Err... I think you might mean square feet, lol? 12.25 ft² equals approximately 1.138 m², and 17.64 ft² equals approximately 1.639 m². 31.6 or 40 watts per m² isn't likely to grow anything (mushrooms, maybe), while 31.6 or 40 watts per ft²... Well, I'd consider it pretty inadequate for anything (where cannabis is concerned) other than vegetative growth if these numbers were in regards to high pressure sodium lighting. But even I - someone who has happily used them off and on for years - realize that they're pretty inefficient in PAR. Presumably, LED lighting is more efficient (and, hopefully, significantly more so).

I am just trying to get a broad estimate of what kind of watts per square foot (or... square meter ) of LED lighting it takes to grow sativas if one expects to have a harvest that is not overly airy (/leafy). I thought it might help me if people chimed in with their observations. Actually, this would probably help future customers better decide how much light they need for their space (or, alternatively, how much space they can truly cover with their lights). Cannabis is very much a "light loving" plant, so numbers which are good estimates for indoor agriculture in general - which many companies tend to use when advertising, figuring coverage, et cetera (possibly for legal purposes, I suppose) - may not be entirely accurate for the plant that most of us grow indoors.

 

[Mars Hydro]

Hi, kalijah,i think there must be some misunderstood.As i mentioned at the PM,we use DHL and Roymail at UK,we do not use yodel,and my colleague will correct it on ebay.
After you made payment,we will send out the light within 24hours working-time,and 3-5working-days you will receive the light.
For me,i wanna deliver it to you immediately once we collect your payment,but the warehouse and we do not work on holidays or weekend..

Has anyone else had problems ordering a light with sara. I'm asking to upgrade delivery as I see that the eBay store use yodel 24 hour but I'm just being told no they don't and I have to wait 3-5 days for delivery.surely paying hundreds of pounds should warrant a decent delivery service.im not being an ass just a normal customer.

 

[Mars Hydro]

Hi Frank,as our engineer can not speak English, he can not communicate with our customer.Our repair center technician in Canada,he only knows how to repair our light,but didn't know well about profession information about our light.He just saw that waterdrops cover the light when he opened your light,as we have proved, at humidity around 50% with a constant big difference between inside and outside will lead to condensation, while our light will handle the humidity above 50% to 85% . My colleague consulted with our Canada technician,but not our Chinese tech.
We have done these tests to show you that either with the big temperature difference or very small temperature difference(with different humidity),there will not be waterdrops all over the light.Here is our test process.
1.Inside of the tent the temperature is 30.2C,outside of it is25C,at 80% humidity,with the exhaust system,there is no droplet on the tent or the light.
according to your last posts,you were for sure it's because of the temperature difference,so we did another two tests with big temperature difference(without exhaust system):
2.1 Inside the tent temperature is 31.4C,outside of it is 13.9C,at 53% humidity.There were waterdrops on the tent,but not in the light.
2.2 Inside the temperature is 37C,then we cool it down to around 17C,outside around 14C,at 50%-60% humidity,the tent have droplets,but the inside of light doesn't have.
As it is carton box,even with the foam,if there were plenty of droplets,the foam can not manage it,the carton box should be soaked with water,too.Actually, when the tech open the box, there wasn't any waterdrops on the foam.
We did the test which you mentioned about the temperature difference,there is no problem for the light.You told our repair center that you used 70%humidity,there will not be a problem for our light.
You said your exhuast system is very good, which means we need to eliminate the possibility of inblanced temperature.It's hard to figure out why there were plenty of waterdrops covered your light.
If it's our problem,we will honor the warranty ,and we tried our best to help all of our clients at the first time.We did what we can do,we had run several tests to figure out the problem for you,we didn't keep silent.

 

[Mars Hydro]

we measured the coverage for each light is based on the hanging distance24"-30"from the canopy,you may need to lower it down during floweringIf you think the power is not enough,as very plant is unique,you need adjust it according to the react of your girls,our recommendation is only for your reference.
Happy growing gudyul...how is your girls these days? i'm bet they are doing good at your "garden"

Tortured soul , firstly let me say that I love your handle, where does it originate? My experience with mars 1200 (2) and 144 x 5 reflector are thus, they seem to work synergenically in a 2.5-3 footprint , every other one etc, not sure how to calculate overlapping watts... Stand alone they may not do so well. My Plants acclimatize and get as close as 8 inch (depending on strain ?) good size , dense bush penetration, is about 8 inches so start 12/12 early on. I replace the burnt out blue diodeds with reds on the 1200's. THe 144's don't seem to have as many issues with burnt out diods n drivers. Too many watts like 1200 with 144/s back to back will bleach the tops. I would recommend some adequate spacing of 1.5 foot minimum ( in my world, RDWC, NPK, Skunk 11, 40-60 Humidity , 85-75 temp +silica+cal-mag + sulfuric acid ) prolly same thing for hi brix .

 

[Frank8898]

Hi Sara,
Thx a lot for taking time to do test. The only thing that bothers me in your test is that if you leave the light inside the tent you'll never have water droplets form since the difference of temperature is between the tent and the external environment . For this test to be valuable you'd have to take your light from inside the tent at no mater what RH over 50% and temp over 20 to outside of the tent and expose it directly to a much lower temperature close to 9C.

You are right you haven't been silent about the situation and I appreciate It and that why I contacted you through here. In the past you gave me a good price and an incredible service when I purchased those lights and I was expecting the same for the customer service but communications with Della were not easy and I felt she didn't understand me well. She didn't answer any of my questions and her answers were systematic I had exposed those lights to 70% humidity so it was my fault if they were broken.

As I said in an earlier post she even sent me picts of the text messages I exchanged with your Canadian technician just to show me she knew I exposed the lights to 70% humidity. But you confirmed that your lights have been tested in rh up to 90% without problems so I guess it must not be my fault if they broke.

That's why I came here and contacted you.

Also do you think I would have shipped you a light with water droplets into it? Sorry but im smarter than that and if it was the case I would have let it dry before I shipped it ...

Anyway from now ill just wait for Della to contact me and hope this situation will be resolved properly.

I guess I wont be refunded for the first repair I already paid for but its ok I don't mind. I just hope it will be considered for my 2nd light.

Best regards and A Good day to you and to 420 members

Frank

Hi Frank,as our engineer can not speak English, he can not communicate with our customer.Our repair center technician in Canada,he only knows how to repair our light,but didn't know well about profession information about our light.He just saw that waterdrops cover the light when he opened your light,as we have proved, at humidity around 50% with a constant big difference between inside and outside will lead to condensation, while our light will handle the humidity above 50% to 85% . My colleague consulted with our Canada technician,but not our Chinese tech.
We have done these tests to show you that either with the big temperature difference or very small temperature difference(with different humidity),there will not be waterdrops all over the light.Here is our test process.
1.Inside of the tent the temperature is 30.2C,outside of it is25C,at 80% humidity,with the exhaust system,there is no droplet on the tent or the light.
according to your last posts,you were for sure it's because of the temperature difference,so we did another two tests with big temperature difference(without exhaust system):
2.1 Inside the tent temperature is 31.4C,outside of it is 13.9C,at 53% humidity.There were waterdrops on the tent,but not in the light.
2.2 Inside the temperature is 37C,then we cool it down to around 17C,outside around 14C,at 50%-60% humidity,the tent have droplets,but the inside of light doesn't have.
As it is carton box,even with the foam,if there were plenty of droplets,the foam can not manage it,the carton box should be soaked with water,too.Actually, when the tech open the box, there wasn't any waterdrops on the foam.
We did the test which you mentioned about the temperature difference,there is no problem for the light.You told our repair center that you used 70%humidity,there will not be a problem for our light.
You said your exhuast system is very good, which means we need to eliminate the possibility of inblanced temperature.It's hard to figure out why there were plenty of waterdrops covered your light.
If it's our problem,we will honor the warranty ,and we tried our best to help all of our clients at the first time.We did what we can do,we had run several tests to figure out the problem for you,we didn't keep silent.

 

[Jae416ixside]

Jae416ixside,everytime when you are looking at yor girls,you must be very pleased,cos i am

thank you sara i love checking up on them its the best part of my day.. i got my first grow journal up using two 144x5 for flower who ever wants to check out and leave some advice feel free.. happy growing everyone, so far my girls love the mars hydro happy customer here

GREEN CRACK 1st GROW 144x5 LED
Jae's - Green Crack - 144x5 LED - 1st Grow

 

[Curly Beaver]

Humidity question

Sara,

How does humidity effect the MarsHydro Reflector series (particularly 192X5)??? I would think they would be fine when the light is on, but what about when the light is off? Are they specially made to resist moisture?

What I'm getting at is - if the humidity level in your grow area is say 60%, what does that do to the internal components of the light? As an example, I have a grow area that is covered in plastic, this morning when I checked on it there was water running down the inside of the plastic at 55% humidity..... I'm probably worrying over nothing, but it got me to thinking about it.

Thanks,
Beav

 

[Mpfstc]

Just out curiosity....How well do these lights hold up over time? I'm looking to invest in another light and I would like to try the LED route.

 

[Dave Groomer]

Just out curiosity....How well do these lights hold up over time? I'm looking to invest in another light and I would like to try the LED route.

I have been running mine for about 2 years.

 

[arellanobrian]

Another weekly update!! sorry about the delay

PissDrunx0420 Pheno Hunt: S3:E4 Dark Dragon Week 4 Flower, SCROG Setup/Transplant