300 w Mars hydro

Tim Fox said:
it would be more correct to say "seems like the HID and the blurple mass procuded Led and the Cree Cob guys are passionate about thier lights",,,, because there are far more debates about the merits of Cree Cobs and blurple china lights ,
Hid is proven and many DIY led guys would rather steer someone towards bulbs before low watt led chips panels, its still sad to me that they are being sold to people, do they work, sure, but if your going to spend 3 plus months investing in a plant, why not get the most for your time, the Cree cob guys are all pulling 1.30 to 2.0 grams per watt
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LOL! Yeah if you're willing to punch holes in my grow room and patch them back up every time I need it patched and also if you're willing to give me extra money every month to cool my grow room with an A/C then I'll use you're HID lights. But if you aren't willing to do this then stop suggesting HID's. If you want people to use 1000 watt hps lights so badly then fund their grow operation and be quiet already man. Suggesting people use the most expensive option for their grow and then not taking into consideration their cost to run it or space is so stupid. Its almost like you're saying, "yeah man that toyota is nice but you should get a ferrari, I mean why get that toyota when you can look extremely cool during the time that you're driving that vehicle." Get real man.
 
mauricem00 said:
just ran the number based on data from mars hydro, GE and sylvania. 3 300 watt mars hydro produce less lumens and less PAR (umoles/meter squared) than a 4 bulb 4 foot T5 fixture while using twice as much power. all that extra power is converted to heat.about as much heat as a 150 watt hps and only 10% more light.if you are going to use LEDs than DIY COBs seems to be the only way to get good results.wonder if anyone has tried mixing 4000k cobs with high end 430 and 660nm diodes.looks like and interesting test when I have a little extra money
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What do you think everyone here is an electrician? Do you think everyone has the time and patience and skill to go out and make COB's? What fantasy world are you living in? But I digress, if you want everyone to have COB's then make a whole bunch of them and give them out for free. End of debate right? I mean if it makes so much sense then help every grower and donate your time and put your money where your mouth is and give out free COBs. Oh right you won't. What makes sense and works for you, might not make sense and work for everyone else. Get that nazi mentality out of here young one.
 
Mysticlown150 said:
What do you think everyone here is an electrician? Do you think everyone has the time and patience and skill to go out and make COB's? What fantasy world are you living in? But I digress, if you want everyone to have COB's then make a whole bunch of them and give them out for free. End of debate right? I mean if it makes so much sense then help every grower and donate your time and put your money where your mouth is and give out free COBs. Oh right you won't. What makes sense and works for you, might not make sense and work for everyone else. Get that nazi mentality out of here young one.
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Why dont you give out free mars light's, you seem to really like those. Its quite funny that you don't understand that watt for watt hps beats mars with less heat 400 watts of hps creates as much heat or less then 400 watts of Chinese led. Not to mention Hps will give you Better results . cooling hps is the same as cooling mars light's. Mars are not cooler or more efficient they are usually pulling half the power and bragging about how much money they save..muthafucker, no shit.its a weak light that gives weak results. Mars is outdated older technology, that's why they practically give those cheap shits away..but believe me when I say you're not saving money your just using a weaker light that doesn't pull as much. The results will reflect that.
 
Mysticlown150 said:
What do you think everyone here is an electrician? Do you think everyone has the time and patience and skill to go out and make COB's? What fantasy world are you living in? But I digress, if you want everyone to have COB's then make a whole bunch of them and give them out for free. End of debate right? I mean if it makes so much sense then help every grower and donate your time and put your money where your mouth is and give out free COBs. Oh right you won't. What makes sense and works for you, might not make sense and work for everyone else. Get that nazi mentality out of here young one.
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at 59 im not that young.and im not suggesting that everyone build their own COB. I use T5s in my closet grow.I am saying that cheap chinese grow lights are not the best option and if you want to use LEDs than DIY Cobs are the best way to go.I do not think most people have the skill to build a Cob grow light. it was once said that "you will never go broke underestimating the intelligence of people" people need to review their options and use whats best for them.I do find the exaggerated claims made by LED makers a little annoying.I don't know where that "nazi mentality" came from or your believe that others should give things away for free.their are companies selling Cob grow lights
 
I need some help guys, so I have 2 seeds germinating on heat mat 36 hours one popped in picture should I put it in rock wool under light now?
 

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New Grower360 said:
I need some help guys, so I have 2 seeds germinating on heat mat 36 hours one popped in picture should I put it in rock wool under light now?
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id wait alittle longer till you have a nice sized root. just make sure the root does not get attatched to the paper towel or what ever that its on top of
 
Mysticlown150 said:
What do you think everyone here is an electrician? Do you think everyone has the time and patience and skill to go out and make COB's? What fantasy world are you living in? But I digress, if you want everyone to have COB's then make a whole bunch of them and give them out for free. End of debate right? I mean if it makes so much sense then help every grower and donate your time and put your money where your mouth is and give out free COBs. Oh right you won't. What makes sense and works for you, might not make sense and work for everyone else. Get that nazi mentality out of here young one.
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I have 0 know how, and you can clearly see that mine is working out for me. I made my cree cob light in pursuit of quality medicinal buds. I am not disappointed at all with the switch. They run cool at 80* Degrees and under even as a passively cooled setup. My grow space environment is great, temp, humidity, light, airflow, everything. I would urge anyone to just research a bit about it, and you will find that it might be slightly more expensive to start up, but it is so good that it will pay for itself on the first harvest. To be truthful, you'll be spending so much more on other elements of your grow at the end of the day if you go with HID. Issues such as fine tuning the environment will not be as easy with HID. Sure the original cost is lower, but then you are going to have to worry about heat, airflow, all of these otherwise easily avoidable issues, this will cost you money in taking care of your plants, and most importantly, in lacking quality. cheers
 
GroDank101 said:
I have 0 know how, and you can clearly see that mine is working out for me. I made my cree cob light in pursuit of quality medicinal buds. I am not disappointed at all with the switch. They run cool at 80* Degrees and under even as a passively cooled setup. My grow space environment is great, temp, humidity, light, airflow, everything. I would urge anyone to just research a bit about it, and you will find that it might be slightly more expensive to start up, but it is so good that it will pay for itself on the first harvest. To be truthful, you'll be spending so much more on other elements of your grow at the end of the day if you go with HID. Issues such as fine tuning the environment will not be as easy with HID. Sure the original cost is lower, but then you are going to have to worry about heat, airflow, all of these otherwise easily avoidable issues, this will cost you money in taking care of your plants, and most importantly, in lacking quality. cheers
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How much did you spend on your DIY setup if you don't mind sharing? From some of the ones I have looked at it would still run around $300. For a first timer, my instinct was to go with the $70 300 watt Mary Hydro. For $300 I could have 4 of them for plenty of light, maybe two on top, two on the sides for equal lighting.
 
GroDank101 said:
I have 0 know how, and you can clearly see that mine is working out for me. I made my cree cob light in pursuit of quality medicinal buds. I am not disappointed at all with the switch. They run cool at 80* Degrees and under even as a passively cooled setup. My grow space environment is great, temp, humidity, light, airflow, everything. I would urge anyone to just research a bit about it, and you will find that it might be slightly more expensive to start up, but it is so good that it will pay for itself on the first harvest. To be truthful, you'll be spending so much more on other elements of your grow at the end of the day if you go with HID. Issues such as fine tuning the environment will not be as easy with HID. Sure the original cost is lower, but then you are going to have to worry about heat, airflow, all of these otherwise easily avoidable issues, this will cost you money in taking care of your plants, and most importantly, in lacking quality. cheers
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Who are you and why would I care if you are happy or not with the switch to cobs. All I'm saying is that every person has a right to which light they want to use. Don't tell me that I have 0 know how. I know enough about them and smart enough not to use them. If cree cobs were so good a lot more people would use them. Fact is a lot of those cree cobs put off a good amount of light in the green spectrum, Because of this white LED's are very inefficient. To dumb it down for you, basically you're spending money on something that your plant can't even use.
And before you say anything, yes I know they put out a good amount of blue but the fact that they also put out green makes them pointless. Imagine if that wasted energy could go even more to the blue side for veg? Or even better yet to the red side for fatter buds? Cobs are borderline pointless.
 
Build your own!, buy the most expensive its the best!, Cheap Chinese!, yada yada yada!

Look bro I'm going to keep it 100, I was also worried about using LED's an forums did not help at all!
Not everybody has an extra room, thousands of dollars to waste or the like 20 different tools you need to make your own COB light!
I brought me one of these
Mars-Hydro-Reflector96-Led-Grow-Light-Switchable-Full-Spectrum-Draw-Power-210W-for-Indoor-Bloom-veg.jpg_640x640.jpg


It runs very cool, I've had top colas about 2-3inchs away from the top and the buds where perfectly fine,
an My Grand daddy purple grew nugs so solid and sticky your fingers looked black after breaking up some of the bud,
It would be nice If I could use a hps but My tent is in my room in an apartment with my family, a lot of stuff running at once, and I run Into no issues with the electricity! I also have a T5 veg tent in the same room, Don't let anyone discourage you from what you want to buy or how you want to grow it's all an experiment find your own way!
 
Alec420 said:
I have been running 2 Mars hydro 300w LED , two weeks veg with
I used CFLs(130w total) from seedling to the end of week 2
This tent is the same dimension as yours 2x4x5
View attachment 3696922 This is the end of week 2 going to 3. Just got both of my LEDs around the same time.
View attachment 3696921 New 4x4x7 tent on the end of week 4
View attachment 3696916This is the of week six.both plants are 18in. more or less
View attachment 3696917
View attachment 3696918
View attachment 3696919This one is Money maker from strain hunters or green house seed i think they are the same
View attachment 3696920 this plant is BBxWW also from green house seeds

I can not blame the lights for giving me such small plants (maybe alittle:roll:), This is only my second grow. I had nutrient issues; heat issues for awhile untill i got my 4x4x7 tent. But even then temp was not optimal. Now i have bought a great linefan, plan on getting a 400wat HID and mixing it with my 2 300 wat mars LED as supplemental light, sure these lights aren't as intense as a HID but i've read LED can provide very high quality weed because of the different light spectrum . HID+LED= high yields, higher quality. Theory was having both lights closely mimics the suns light specturm...
I still need to see how my harvest goes before i start preaching this.
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I started with a 300 watt LED, moved to an 800 watt with great improvement. The 300 now lights my nursery, and the big daddy 800 is in my flowering den. I started with HPS, but will use nothing but LED.
 
mr sunshine said:
In the led world, you're the one stuck in the past. You obviously work for mars..I've personally seen a mars1600 used . pulls 7hundres something watts from the wall.. complete garbage. . Doesn't compete with a 600 watt air cooled single ended set up.. hot af.. can't air cool it. That's only a single ended set up talk about a De fixture omg you're so blown out of the water.. stop spreading lies the led community hates mars.
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All I can say is I started with HID and switched to LED and have healthier, bushier, and buddier plants. I'll never go back to HID, cfl, or T5. I'd suggest you try growing with one before claiming superior knowledge to everyone else. I've proven my crop greatly increased under LED, and I do not work for any LED company.
 
I have grown with one bro. I suggest you do some research before you back up a cheap Chinese company that makes makes bottom of the line leds. I think leds are fine, mars are cheap shits though, Go to the led section and ask them.
 
mr sunshine said:
I have grown with one bro. I suggest you do some research before you back up a cheap Chinese company that makes makes bottom of the line leds. I think leds are fine, mars are cheap shits though, Go to the led section and ask them.
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mr sunshine said:
I have grown with one bro. I suggest you do some research before you back up a cheap Chinese company that makes makes bottom of the line leds. I think leds are fine, mars are cheap shits though, Go to the led section and ask them.
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I haven't any experience with Mars, those 300 wattage are all made by 2 chinese companies that I have found. The problem with them isn't the light (as long as the chinese are being honest) its the wattage. Plus, it must have zeners on each to keep it running should a cheap chinese diode fail. The chinese crap is good for 1-2 grows, then diodes start failing.
mr sunshine said:
I have grown with one bro. I suggest you do some research before you back up a cheap Chinese company that makes makes bottom of the line leds. I think leds are fine, mars are cheap shits though, Go to the led section and ask them.
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I agree about Mars. You will only get 1-2 grows before too many leds are burnt. I bought a King Led, inexpensive, but when Iopened her up the quality of components was better than average. I'm using these until I have all the components to build a couple of 1200 Watt leds with veg or flower switchable state. I've drawn the schematic and have about half the parts. When you use top quality components it quickly becomes expensive! The problem I've found with most of these LED's isn't the spectrum, or the light. It's been longevity, if people understand they will only get 1-2 grows from the cheap ones, then they are fine.
 
I dont know where you guys are buying your mars ... I had mine for 2 years with multiple grows under them . NO BURNOUTS or Bullshit.

If they were as shitty as everybody is crying about , i damn sure would gave joined in.
I use 2 mars series II ( version 1 ) 900s - i ONLY thing i ever had to do with them , is open case and clean the glass ( recommended once in a while ). I also use compressed air to blow out any dust that may have collected.

I run them at 18/6 and 12/12 for 2 years straight ( i keep grows going all year ) and have not run into any damn problems.

I purchased thru a local distributor ( cali ) and never looked back.
So that longevity argument is moot.
They run at no more than 85 degrees on the hottest days.

I would rather have a light rated for 50,000 to 100,000 hours life then some HID lamp that will fail at a drop of a hat THEN buying bulbs because of degrade or burnouts. Or ballast issues.
It is WAY MORE COST effective to run these panels .... I dont get scary ass power bills from these.

Here in cali its going into the TRIPLE DIGITS this week and fuck that if im going to turn the house into an oven with a HID system.


They work ... It is what it is.

image.jpg image.jpg image.jpg image.jpg
 
Budzbuddha said:
I dont know where you guys are buying your mars ... I had mine for 2 years with multiple grows under them . NO BURNOUTS or Bullshit.

If they were as shitty as everybody is crying about , i damn sure would gave joined in.
I use 2 mars series II ( version 1 ) 900s - i ONLY thing i ever had to do with them , is open case and clean the glass ( recommended once in a while ). I also use compressed air to blow out any dust that may have collected.

I run them at 18/6 and 12/12 for 2 years straight ( i keep grows going all year ) and have not run into any damn problems.

I purchased thru a local distributor ( cali ) and never looked back.
So that longevity argument is moot.
They run at no more than 85 degrees on the hottest days.

I would rather have a light rated for 50,000 to 100,000 hours life then some HID lamp that will fail at a drop of a hat THEN buying bulbs because of degrade or burnouts. Or ballast issues.
It is WAY MORE COST effective to run these panels .... I dont get scary ass power bills from these.

Here in cali its going into the TRIPLE DIGITS this week and fuck that if im going to turn the house into an oven with a HID system.


They work ... It is what it is.
View attachment 3710674 View attachment 3710675 View attachment 3710676 View attachment 3710677
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For the cost, there is nothing wrong with these units. They work, they grow plants. The problem is the parts used are......chinese parts. They are unreliable, and the diode emitter degrades. Cheap parts can't be trusted. I'm using a chinese led. I plan for it to last 1 year, if I get more, great. For us poor growers, the chinese leds are good enough.
 
metalback said:
For the cost, there is nothing wrong with these units. They work, they grow plants. The problem is the parts used are......chinese parts. They are unreliable, and the diode emitter degrades. Cheap parts can't be trusted. I'm using a chinese led. I plan for it to last 1 year, if I get more, great. For us poor growers, the chinese leds are good enough.
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The way i look at it ... What parts aren't made in china ? Or taiwan ?
Even if you buy " american " ( lets say drivers or power supply ) there is a high chance that the internal components are SOURCED from oversea , the capacitors , resistors , chips , etc. ) there is a False Belief that " American Products " are actually fully american built.

My TV ( vizio ) is foreign , my stereo ( onkyo ) is foreign , ipad , car , clothes , playstation ,
microwave , on and on ...... CHINA builds everything ... Unfortunately its a reality.
 
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