Marshydro Led grow...

Th3wiz4rd · Jan 17, 2015

I purchased 2 of the 300 watters off ebay. I used one to replace 180w cfl and so far I'm not impressed with the led's performance.

Yellowed tops. At first I thought it was light bleaching so raised the lights to over 20" and after a week with no improvement I figured it must be sulfur def so I upped the cal mag and lightly foliar fed Epsom salt.

Plants are still yellowing so Ill be putting them under my 400w hps soon.

I'm still tempted to attempt to flower some healthy ladies under both 300's but I'm unimpressed with one's ability to veg some little clones so it's probably not even worth it.

Tim Fox · Jan 22, 2015

I received this advice in my grow thread, "Removing the glass will also help with heat and up your radiometric output from probably somewhere between 7 and 12% I would think. That and cutting slices into the corners of the faceplate and carefully bending the metal into contact with the mounting plate will help with the light that gets trapped around the edges of those stock Chinese case. Terrible cases btw. Crap when it comes to cooling"
So I already upgraded the fans, this Mars Led 300 watt does make a small amount of heat, in my 3 x 2 x 6 box it raises the temp 7 degrees with my fan on really low speed, So I am happy with the heat dissapation, but I wanted to maximize what this light can do , so I followed the advice and took the light back apart and removed the glass , now the LED's have direct path to the plants, the last picture is showing the top half of the wardrobe with the doors off for light sealing, but you can see some of the inner workings of the cab, and the mars light hanging there

Don Geno · Jan 22, 2015

Th3wiz4rd said:
I purchased 2 of the 300 watters off ebay. I used one to replace 180w cfl and so far I'm not impressed with the led's performance.

Yellowed tops. At first I thought it was light bleaching so raised the lights to over 20" and after a week with no improvement I figured it must be sulfur def so I upped the cal mag and lightly foliar fed Epsom salt.

Plants are still yellowing so Ill be putting them under my 400w hps soon.

I'm still tempted to attempt to flower some healthy ladies under both 300's but I'm unimpressed with one's ability to veg some little clones so it's probably not even worth it.

light bleaching would turn a very light color not yellow 300 watt leds are better off 12 inches away for optimal growth yellowing would be from a nitrogen deficiency raise your nitrogen levels with leds they tend to be fed a little more than with cfls I myself have been through this particular problem good luck and happy growing :peace:

Don Geno · Jan 22, 2015

Tim Fox said:
I received this advice in my grow thread, "Removing the glass will also help with heat and up your radiometric output from probably somewhere between 7 and 12% I would think. That and cutting slices into the corners of the faceplate and carefully bending the metal into contact with the mounting plate will help with the light that gets trapped around the edges of those stock Chinese case. Terrible cases btw. Crap when it comes to cooling"
So I already upgraded the fans, this Mars Led 300 watt does make a small amount of heat, in my 3 x 2 x 6 box it raises the temp 7 degrees with my fan on really low speed, So I am happy with the heat dissapation, but I wanted to maximize what this light can do , so I followed the advice and took the light back apart and removed the glass , now the LED's have direct path to the plants, the last picture is showing the top half of the wardrobe with the doors off for light sealing, but you can see some of the inner workings of the cab, and the mars light hanging thereView attachment 3336893 View attachment 3336894 View attachment 3336895 View attachment 3336896 View attachment 3336897

thats a clean setup brother! :weed:

Th3wiz4rd · Jan 22, 2015

Don Geno said:
light bleaching would turn a very light color not yellow 300 watt leds are better off 12 inches away for optimal growth yellowing would be from a nitrogen deficiency raise your nitrogen levels with leds they tend to be fed a little more than with cfls I myself have been through this particular problem good luck and happy growing

While I appreciate your reply, I'm pretty sure it's not N def. some tops basically turned white while some were just a pale yellow. I feed 5ml/gal gh flora nova grow, 1 to 2 ml/gal silica blast, as well as 1ml/gal gh calmag whatever they call it. The calmag has been upped to 3ml per gallon since I've switched to the 300w led's. They were totally healthy under the cfl's. I contacted the seller I bought the light from and he claimed I need to keep the light 24" to 36" MINIMUM from the light. I've raised it to about 33" from tops and bleaching has stopped. Hopefully after they get over the shock they'll start some healthy growth. I just wonder how my very healthy fully vegged (under a 400hps) ready to flower wicked blue widow girls are going to do under these inexpensive led lights.

I sure wish I could find a completed grow journal or detailed product review from someone using one or several Marshydro old style 300w led's.

Don Geno · Jan 22, 2015

yea no prob just trying to help yeah I didn't see that the tops were white must've missed that on your post interesting they said a minimum of 24" i keep mine 12 inches but im in a small space post some pics up lets see those babies!! :hump:

are you going to continue playing with the leds? or just switching to the hps? blue widow sounds great!! :leaf:

Th3wiz4rd · Jan 23, 2015

Wicked blue widow is actually Northern lights crossed with purple Kush. It is a tasty strain that can yield pretty well if vegged long enough but man is it a finicky cloner.

I'm going to give the young ones another week or so under the led. Hopefully I can fully identify and correct the problems. If the little ladies continue their issues I'll probably return or sell the led's and buy another 600w hps.

I keep the little ones 2 feet under the light and they have bleaching and probable cal/mag issues. You say 1' and the light seller says 3'. God damnit lol.

I use General organics camg+ and it says 5ml per gal for light usage. I've been under feeding especially since I now know led requires upped calmag dosage.

Don Geno · Jan 23, 2015

Th3wiz4rd said:
Wicked blue widow is actually Northern lights crossed with purple Kush. It is a tasty strain that can yield pretty well if vegged long enough but man is it a finicky cloner.

I'm going to give the young ones another week or so under the led. Hopefully I can fully identify and correct the problems. If the little ladies continue their issues I'll probably return or sell the led's and buy another 600w hps.

I keep the little ones 2 feet under the light and they have bleaching and probable cal/mag issues. You say 1' and the light seller says 3'. God damnit lol.

I use General organics camg+ and it says 5ml per gal for light usage. I've been under feeding especially since I now know led requires upped calmag dosage.

This is my grow with the berry cherry cheesecake 12/12 from seed

Don Geno · Jan 23, 2015

Th3wiz4rd · Jan 23, 2015

Hey that's awesome! That was under a marshydro old style 300w??

And you had about 12" between plant and light?? And no bleaching!??

I bought the 2 "300 watt" led's with the intention of putting them in a 2x4x5 tent above a very full netted canopy of 3 wwb ladies that have been vegging under a 400w hps for like 2 months... They're pretty big plants already. They're super healthy so it would be pretty sad to end up flowering them with inferior lighting and yielding poorly.

Do you think it's even worth trying?

Ive yielded right around a half P in this tent with a 400w hps that was dimmed to 250 on warmer days. That was 4 heavily lst'd blue dream plants and a short fat querkle that ended getting pretty shaded out pretty bad by stretchy old blue dream.

I wonder how the yield would be with the two led 300's? What did your single plant end up yielding??

Th3wiz4rd · Jan 23, 2015

Also, Don, how much calmag do you use per gallon?

Maybe I do just have a really bad deficiency that happened all of a sudden when the led moved in. It's been years since I've had any nute related problems that maybe now I just suck at diagnosing nute related issues lol.

Don Geno · Jan 23, 2015

Thanks wiz!! yep yep,, no bleaching this is my first run with the led and this is a new strain 12/12 from seed cuz I just couldn't wait to try it, it's growers preference use whatever you feel comfortable with, first run using dolomite lime and bud candy substituting for molasses, pretty much new strain. new light and new feeding so far I'm digging it :hump:

Happy growing brother!! :leaf:

Th3wiz4rd · Jan 23, 2015

I'm definitely most comfortable flowering under my dimmable hydrofarm phantom 600.

I'm gonna drop the lights back to 18" and give them a few nice doses of camg+ and see what happens. I have a week till my wbw is scheduled to flower so I got the time to give this led a fair chance.

What did your 12/12 from seed yield??
I haven't flowered directly from seed, yet.

When Ive flowered from rooting clone i got like 7 to 10 grams per plant haha but they were only in 32oz hempy cups and got shitty lighting due to being under the canopy.

djeclipzjv · Jan 30, 2015

WazzaX said:
mine is dry so I put it in jars this arvo to start curing... made a mistake by not buying enough clip jars so will be using some coffee ones aswell...I also grabbed some scales and had a finished dry weight of 287 grams from 2 plants plus a heap of garbage that I will try my hand at making bubble hash (never had a crack at hash so im looking forward to it)...I am very happy with my results but still think I can do better next time

"in the jar" pic...

Hey Wazzax, awesome job! Finally caught up with the post. I currently have a 300W from Platinum LED and looking to add a couple more babies to grow. The current light is way too expensive and was looking into MarsHydro. Your grow is a true inspiration along with Oilmaker!, props.

Question though. I am trying to guestimate on my yield given everything goes well of course and depending on strain. You mentioned, you got 287 Grams Dry from two plants, from what I've read and learned, drying takes out about roughly 75% weight leaving you 25%. So you were able to pull almost a pound from each plant? 278g is rouhgly 25% of 2lbs'ish. Can I expect something similar results?

Thanks,

Mars-Hydro · Feb 4, 2015

oilmaker68 said:
hi y'all

today i received my Mars Hydro LED growlight. I have raised my Fem seeds with 2x300w CFLs but felt it lacked power and penetration when it came to veg. I already tried the cfls with 2 x Lemon ice seeds i had and they haven't grown well into veg so decided i needed another LED.

I went for the Mars Hydro because the price of Budmaster II lights (that i flower with) are ridiculous (even though they are phenomenal)

As there is little info available on these specific units i decided to have a punt. Also they have U.S stock which was a bonus.

I am growing 3 strains, all from Amsterdam. I planted them on 24/6/2014 except Incredible Bulk which was planted 4 days later

3x Bulldog Chronic THC - 20% 650gm/m2
3x Pineapple Chunk THC - 25% 650gm/m2
1x incredible Bulk THC - 24% 1000gm/m2 <yes, that's what the breeder claims

I am planning on foliar feeding the "runts" as the experimental feed i have claims it will force the runts to catch up to the bigger plants (i doubt it)

light specs :

Reflector design 100% LED lumen output to plants

Glass free design. Glass and extra lenses can diminish lumen output by as much as 20 percent! Our design provides more light for your plants.

Growth/Bloom switches, Save more power and more efficiency.

Spectrum: 430~440nm, 450~475nm, 620~630nm, 650~670nm, White, Real Infrared spectrum: 730nm

LEDs: 192*3WLEDs

Dimension: 22*19*2inches

Lumen: 29200lumens

Coverage: 4*4ft( Veg), 3.5*3.5ft(Flowering)

Output power: 600Watt

Power consumption: 110V: 370W-384W/220V: 350W-364W

Amp: 2.44A/110V, 1.22A/220V

Worldwide Voltage Capable: AC85~265V

View Angle of LEDs: 90/120° Mixed

Lifespan: 50000-100000hours

Light will be kept at 2ft above plants unless stretching appears then it will be alter accordingly

Nutrients :

Magne-cal+ by plant magic 1ml/L
Bio Green Grow 1 1ml/L
Experimental foliar spray 3xpw

Water:

Tap water PH'd to 5.8
Currently hand watered but will be switching to gravity fed drip feed ASAP

Medium :

Amsterdam Gold Label COCO

Temp:

24c - 27c

RH :

50% - 60%

if ive forgotten to mention anything i'll add it later.

heres some Pics to get started
View attachment 3214895 View attachment 3214896 View attachment 3214897 View attachment 3214899 View attachment 3214900

ignore the plants on the right, they are for cloning then the best two will be added to the grow later. I plan to add a gravity fed drip feed system so ill add pics of that next.

ill post new pics and updates as i go, feel free to add any comments or ideas.

I just feel so strange that how can you get the light at such a lower price? from ebay store? auction listing?

entertainer1224 · Feb 8, 2015

I got mine off dhgate.com it happened to be on sale at time of purchase for like 20% off.

D port Growth · Feb 8, 2015

Just gonna chime in and drop this off

when testing leds it's better to look at p.a.r. (photosyntheticly active radiation) not lumens lumens are light waves visible by human eyes and par is pretty much light waves usable by plants. Hope this helps

dandyrandy · Feb 8, 2015

I have some strains that bleach others don't. In fact I have 2 Sourd from clone two different phenos. One bleaches easily the other does not. Same strain same breeder. Different plant. I use 4 old style 300w. Marshydro. I just bought a 400w cob grow light from fleabay. Two cobs. I used it for two weeks and swapped the marshydro back in. At least in veg the old style mars (with glass off) kicks the $210 cob.

AUSCraig · Feb 11, 2015

Hi all.
Read the thread from start to finish.
great read.

Running a 600watt MH for veg on full auto drip feed system. 10 mins each hour. Seems to be going well. Had a mishap and had to pull the tent down 3 days ago. forgot to reconfigure the timer and somehow had the LED running non stop for 3 days!. No probs with the light tho. Recovering well.
Will post better pics in the future.

2 tents.
Veg in 1x1x2 600watt MH.
flower. 600watt nanolux ballast lucagrow 600watt globe and 8 inch OG hood.
Seem to be doing well with AN sensi

AUSCraig · Feb 11, 2015

View attachment 3349044 View attachment 3349045 Hi all.
Read the thread from start to finish.
great read.

Running a 600watt MH for veg on full auto drip feed system. 10 mins each hour. Seems to be going well. Had a mishap and had to pull the tent down 3 days ago. forgot to reconfigure the timer and somehow had the LED running non stop for 3 days!. No probs with the light tho. Recovering well.
Will post better pics in the future.

2 tents.
Veg in 1x1x2 600watt MH.
flower. 600watt nanolux ballast lucagrow 600watt globe and 8 inch OG hood.
Seem to be doing well with AN sensi

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