Marshydro Led grow...

the speed controller is thru amazon works SweEEETtt
3 Amp Variac Variable Transformer, 300va Max, 0-130 Volt Output
by PHC Enterprise
40 customer reviews
| 15 answered questions


List Price:89.99
Price:$64.99 & FREE Shipping. Details
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In Stock.
Sold by officebeyondinc and Fulfilled by Amazon. Gift-wrap available.

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http://www.amazon.com/Variac-Variable-Transformer-300va-Output/dp/B006NGI8VS/ref=sr_1_1?ie=UTF8&qid=1420593148&sr=8-1&keywords=variac+speed+controller

be sure to read the reviews on amazon, several growers there leaving reviews

• Input: 120 volt AC, Output: 0~130 volt AC, 3 Amp Slow Blow Fuse
• Max VA: 300VA, 3 Amp. Max (surge), 1 year warranty
• A rating of 300VA means that at 100volt, the unit can sustain at maximum 3amp. If at 120 volt the unit can sustain at 2.5amp
• Note that most device have surge (when first turn on) much higher than operating amp rating.
• E.g, motor with 3 amp rating may have over 5 amp surge, and you will need 5 amp variac

some more pictures of the Marshydro300 fan replacement job, I am really happy with the resulting LACK of sound, the light fans will not be heard from outside of the grow box, this took me about an hour to do

Awesome DIY upgrade I ordered that same marshydro 300w light along with another 300w from galaxyhydro I will probably change the fans like you have here.
As for that speed control looks like an investment worth taking actually not to bad of a price either. Im gonna have to copy you on the fan upgrade and speed control great post. How loud are the stock fans on this 300w unit? (Mines still in the mail)

I wanna get a marshydro 300w . what do you think guys? It worth it ? I don;t have any experience in this. It's 130 pounds and I wanna grow 4 autos under this light. Is it allright for flowering ?

shysty said:

Awesome DIY upgrade I ordered that same marshydro 300w light along with another 300w from galaxyhydro I will probably change the fans like you have here.
As for that speed control looks like an investment worth taking actually not to bad of a price either. Im gonna have to copy you on the fan upgrade and speed control great post. How loud are the stock fans on this 300w unit? (Mines still in the mail)

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I would not say the stock fans are loud, but they make a typical fan sound, and I could hear them humming away inside of my box, and I want/need complete stealth, and the new fans are so freaky quiet, you have to have the camera or your ears right next to the led to even hear the new fans,
That variac speed controller is so so so so so worth the extra money, you have complete control over the fan speed and fan noise, I tried the typical speedster and it would only slow the fan down to a certain point and then stop slowing down, so the lowest speed of the speedster controller was not slow enough for me, but the variac controller makes the 6" inline fan whisper quiet, between the fan speed and the LED PC fan swap, my box is QUIET!! its heaven for me

obviously said:

I wanna get a marshydro 300w . what do you think guys? It worth it ? I don;t have any experience in this. It's 130 pounds and I wanna grow 4 autos under this light. Is it allright for flowering ?

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I would not hesitate to purchase another marshydro 300 watt light, the web site states its good for 3 x 2.5 feet in veg and 2.5x2.5 in flower, these lights make beautiful buds in flower, be sure to read up on the nutes throught this thread. if after my first run i may put 2 of these mars 300 watts side by side in my wardrobe,
someone else here stated that if you want to equal HID type lights you need to have leds in the 40-55 watt per square foot range, they also said this is actual watts used,, the mars hydro light puts out 300 watts , but only uses 175 watts,, so 2 of these lights side by side would provide you with 350 watts acutally being used,
but like I said I am going to run a grow under a single 300 mars for my first run and see If i can equal some of the other grows i have seen under a single led mars, there are youtube videos with this light also

thank you for the information. I was thinking to get the Cree CXA series , but I'm a begginer , so it is to complicated for me the setup. So , I thought this is the other option marshydro panel

oilmaker68 said:

It cost $255 including shipping. Seems to be solid enough build wise.

CFL'S were 2 x 300w. Which from seed was really good. Very gentle on them. Will use led straight from seed in future.

Costs are high but they have a lifespan of 10yrs. When you add up how many HPS/MH bulbs you'd buy in that time it works out pretty good value.

LEDs change the internal workings of the plant which some people struggle with ie magnesium and calcium uptake increases. So once people adjust their feeding it will explode in popularity.

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I use similar 300w leds with no bloom/grow switch, but also labelled mars hydro and ive been able to find them for about 135ish shipped, from ads on denver CL.
they seem great for bloom more so if you use a Scrog or other even canopy method. The light does not penetrate the canopy much.
very frosty flowers so far though. Im on my second run.
Master Kush did well on them but i sorta abused MK and stunted the yield.

The stock fans do hum louder than id hoped.

I recieved some northern lights feminized seeds already, and now I am debating to use one of those seeds for my first scrog run under the 300 watt Mars led, what I really have my heart set on now is some Durban Poison, but am I nuts to try a 100 pure sativa under the 300 led mars with a scrog?,, I should ask this in general also

If the marshydro led does not penetrate to much , is not that good for bloom. Am I right ?

Dry Weight Report:

2 x Pineapple Chunk

Flowers are dried and in jars curing... ended up with 314 grams (approx 11oz) of solid bud + whatever the rubbish gives me in bubble hash...I beat my 1st grow by just on an Oz

I'm happy

obviously said:

If the marshydro led does not penetrate to much , is not that good for bloom. Am I right ?

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Everyone here is getting very nice harvest and weight , so the penetration must be pretty good ,sadly some rumors are hard to shake

WazzaX said:

Drdon't hight Report:

2 x Pineapple Chunk

Flowers are dried and in jars curing... ended up with 314 grams (approx 11oz) of solid bud + whatever the rubbish gives me in bubble hash...I beat my 1st grow by just on an Oz

I'm happy

Click to expand...

That is such a nice harvest , congrats , plus you dont Have to buy a new bulb every harvest, gosh ineed to get a crop in,

Those pics are from nearly the end of week 5 everything is going well so far

MAJOR-RED-EYE said:

Those pics are from nearly the end of week 5 everything is going well so far

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your plants are freakin radical,, thanks for sharing

@WazzaX I did a search to see if you were still using the GH the Flora Gro/Bloom along with cal mag. Is that still the case? Im using dyna gro but am having various issues and want to go with something that is "tried and true". Did you incorporate and other nutrients? Nice looks plants BTW!

@paramountads ...yeh mate that's all I have been using... the reason I didn't go for any "bud kandy" style extras is that when I read the ingredients they are basically made from whats already in the GH floranova nutes + molasses... so ill probably try some molasses at some point but havnt at this stage

@MAJOR-RED-EYE ...awsum colas mate

@WazzaX awesome thanks!