Marshydro Led grow...

flexy123

Well-Known Member
. 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.
I have the same problem with two strains, I got two "old style" 300W MarsHydro (60x5W LEDs) and the seedlings are very yellow, almost white! I already moved the light at approx 24" distance now.

I am wondering whether after you moved the light 33" and as you say the bleaching stopped, did you move the light down again once the plants were bigger? Because otherwise 33" distance sounds like awfully far away for me. I am so confused seeing those two plants yellow/white at 24" distance while others say they don't have a problem growing with their LEDs a lot closer, like 18".

Sidenote: While I love the MarsHydros (nice price, €100 each shipped express) they have an annoyance...this is that after a few days in my greenhouse (on the balcony) and very well vented, in AWFUL Spanish heat, right now 100F (38C-40C) at noon they always get a smeary "film" inside on the glass after some days. I already opened the lights two or three times and cleaned the film/glass, but it seems that some sort of oil from the thermal paste or whatever is "sweating out" from the PCB under a lot of heat and creating this film. (One lamp I opened had one of the drivers (?) all oily). I don't want to entirely remove the glass since I want to keep the LEDs somewhat protected from water etc. Just wondering whether someone experiences the same with that film on the glass.
 
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Would a 1600 Mars II hydro on a 5 foot light moving rail be sufficient light to sustain 6-8 plants and enough to yeild 3lbs out of a 4x8 grow tent?
 

Tim Fox

Well-Known Member
if you want to pull that type of weight from a 4x8 you need to go with either a 1000 watt hps bulb or go with something like this cxa3070 build https://www.rollitup.org/t/diy-led-grow-lights-with-cree-cxa3070-cobs-and-cpu-coolers.805681/page-9#post-11211177
or an LED panel such as this one
https://www.rollitup.org/t/realstyles-2nd-white-power-led-grow.876995/
you have to build your own panel or
buy a panel from these guys , they are the only people building led lights using the cree cobs cxa or cxa or vero http://opticgrowlights.com/
NONE and i repeat NONE of those 3 or 5 watt china panels will get you anywhere close
 
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Fiete

Well-Known Member
Whats Up Guys.... I am New ;) very Nice Thread i road for a long time on diffrent Website about the Mars LED... Last week i ask someone on a German Website and they say: Mars LED are low Quality LED lights... I dont think so,, so manny Threads out there manny love the lights and the plants looking awesome!

I dont have Mars Light now i search for Help... I have a area with 80x80x160cm First i will order the old 300 Watt Modell but i send this Light back someone told me the Reflector and the Mars 2 are much better... I think i Order 2x Reflector 96x3Watt what do you think good decission??? Maybe better than only 1 Mars 2? Now the Reflector are with 5 Watt is that better?

How good are the result from the MarsHydro LED? Nice frosty, taste, dense, Hard nuggets?
 
Hi guys been an avid reader of this thread for a while and you guys have convinced me to start a new LED side project with a Mars hydro 150w reflector and a spare seedling of purple Alaskan ice x super silver haze :) im in the middle of a boom cycle and about to start off a fresh batch of seeds in my prop so didn't have anywhere to keep an extra young seedling in my usual setup so I thought fuck it Lets try something new she's just gone straight out the propagator at 3" tall (very very small I know but there was nowhere else for her to go) and under the marshydro 150w reflector I'm using hydrococo 60/40 for the media At the min she's only being fed natural spring water with a ph of 6.5 I'm usually a 100% organic soil grower so I'm pretty new to using nutes and I hear growing with LEDs can require quite a detailed approach to nutrients can anyone offer any advice? I'm thinking of using botanicare kindgrow/bloom base nutrients and calmag pro
How did the marshydro 150 reflector work?
 
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