Mars-Hydro LED Grow Light Discussion

Doozy said:
Hi,

I know this is going off topic now, but one final question if that's ok....does the air in a tent need to be exchanged every 5 minutes regardless of air temperature? I was under the impression that the air exchange was in order to stop the temperature from getting too high, but is it for other reasons too?

Thanks again and sorry for being a bit of a noob, there's a lot to learn, especially when dealing with this new LED technology!

Cheers
Click to expand...

Air is exchanged in a grow area for several reasons. Primarily to remove heat from High Intensity Discharge lights but also to bring fresh air to the plants. Filtered air exchange also lessens the chance of powdery mildew in the grow area.
 
Doozy said:
Hi,

I know this is going off topic now, but one final question if that's ok....does the air in a tent need to be exchanged every 5 minutes regardless of air temperature? I was under the impression that the air exchange was in order to stop the temperature from getting too high, but is it for other reasons too?

Thanks again and sorry for being a bit of a noob, there's a lot to learn, especially when dealing with this new LED technology!

Cheers
Click to expand...

Your plants need to breath. I have never used anything but LED's and cfl's but I still have to change out the O2. I don't know if it has to be done as often but it does need to be done.... Hope that helps :Love:
 
pHlipper said:
After i finaly managed to send Sara my email, i got a fast and short answer. She answered me early the same thing about fans and switching like to Grizzw'.
So i screwed up my first reflector 96*3W, opened it and saw all the components inside well ordered and screwed. No glue used and cable ties only for safty or tidy. The fans are (good) standard pc fans (120mm) with good volume flow rate, both connected via a fix soldered and shrink sleevered Y cable to a single plug connect (and them to the ~12V power supply). If you can connect cables with good "cable clips" (and these metal capsule for the end of wire are also recommended), it's a work of less a quater hour. I took some pictures, if there questions or a small thread for this.
I replaced the fans with some "ultra noise" fans, and yes they are quieter now. Not much, but hearable in twice ways.

While working and experimenting, i got a good demonstration that even a lowest-noise fan becomes louder an louder, when his enclosing box becomes smaller. Air current, turbulations,... So an other possibility would be to enlarge a little bit the space between fan and metal case. At the reflector 96', it was nearly 1 cm space between them. Could it be, that the MarsII models are bit higher and/or other screw positions?

As for myself, i'm contended with it now. My 5W circulation fans are now more hearable than the lights, so i could still play around if i wish to dampen the breeze.
Click to expand...

Thanks phlipper, so worth doing? Did you go to a computer shop to get your fans? So a lager/ higher casing would reduce noise? Wonder if a couple more vents above fan would work? You should start a thread. Peace
 
Hey doc, thanks for the heads up with number of plants for my space,would love to get same quantity with less stress. I haven't checked Curso's link yet, but checked out your grow & it's amazing.Show me the way bro.
What you reckon on getting Mars 400 for veg in optional blue & a 1200 in plant only mode (red bias) or go with the std spectrum for the Mars 1200? All feedback is appreciated
 
GrizzWald said:
Thanks phlipper, so worth doing? Did you go to a computer shop to get your fans?
Click to expand...

Good question,.. for me, in my situation: yes. Even if it's was more psychological than technical, a measurable dB drop was realised.

Yes, they are standard 120mm fans. But watch out, they can have great differences in volume flow rates! I suppose the build-in fans are ~120 m3/, so i took low noise fans with approx equal flow rate. (NOISEBLOCKER BlackSilent Fan XLP, 120mm length of side)

GrizzWald said:
So a lager/ higher casing would reduce noise? Wonder if a couple more vents above fan would work?
Click to expand...

It's my assumption. Put a low noise fan in an enclosure and decrease the space between fan and walls - you'll hear it.
(Picture below is original state) I thought of trying it with a bit bigger spacers, but i hadn't correct screws or spacer material,... .. and i can live well with my new created situation. "Loud" as my pc, when turned on (in my wooden cabinet), and if there's anything else like talking, mid open window, ect.. you must concentrate to hear it through.

I don't own (yet? hehe..) a MarsII to compare, so ähm.. perhaps? From the dimensions of the homepage, i would say there could be more space. And more fans,.. hm to this i can only say: heat devours life time of LEDs, kind of exponential way, as i remember my lessons.
And for last, i wanna repeat that topledgrowlights don't used crap vents - they're ok standard.

 
DrDankNstien said:
Heres a link to Curso's thread, hes running 2 factory spec 1200 Mars II's in a 4 x 8 tent, exactly double yours,
Curso's True High Brix!
I would say hes getting full coverage, one 1200 would work very well in your space.
Im running 2 Custom Area 51 flower specs 1200w Mars II's in my room if you would like to check them out, heres the link,
DrDankNstien's Perpetual High Brix & SuperSoil Grow With TopLed's Custom Mars II

If you dont mind me asking, why 10 plants in a 4 x 4? How much headroom do you have in your space? why not 4 bigger plants? its easier to take care of 4 larger plants and your yield would probably be better, theres no reason why you cant get a lb or more out of a 4 x 4 with 4 plants and a little training as long as theres enough headroom, you need around 28 inches between the panel and the canopy:)
Click to expand...
That is really good to know DrDank! :idea:
I have 10 in a 4x4, and was wondering the same thing. I think I will cut back next round then. It's so hard, because I have the urge to plant, clone, harvest, every day!
:MoreNutes::green_heart:
 
PinkyGreen said:
That is really good to know DrDank! :idea:
I have 10 in a 4x4, and was wondering the same thing. I think I will cut back next round then. It's so hard, because I have the urge to plant, clone, harvest, every day!
:MoreNutes::green_heart:
Click to expand...

I have a 5 x 5 tent and i'm looking at 4 plants, in 5 gallon Autopot XLs under a Mars 2 1200w. From what i have seen on the forums and in journals, more plants doesn't mean more yield.

I've read of people stuffing 16-20 plants in a 5 x 5 tent under a 600w.....crazy. :goof:
 
Glenyboy said:
Hey doc, thanks for the heads up with number of plants for my space,would love to get same quantity with less stress. I haven't checked Curso's link yet, but checked out your grow & it's amazing.Show me the way bro.
What you reckon on getting Mars 400 for veg in optional blue & a 1200 in plant only mode (red bias) or go with the std spectrum for the Mars 1200? All feedback is appreciated
Click to expand...

Glenny, there's also other benefits from growing less plants
 
Is there anybody out there that has been using Sara's ( Topgrowlight) reflector LED's ?
2 switches ,but only one works with fan ?
Can I run 1 switch at a time ? If No , why have 2 switches ?
I just purchased 144x3w and really would like to save hydro, but it seems the 2 switch thing has no bearing ?

P.s - the light is good , but if this is the case ( only 1 switch works fan) the ad should say u can not use each switch separately ( The ad says u can use 1 switch for veg and 1 switch for bloom , but it runs hot without both switches on ).
 
you guys have convinced me to take the leap,a small one anyway.
phlipper do you have a journal? you and icemud along with a few others
really got me over the buyer anxiety. i lurk all the people who use topledgrow lights.
thank you all for being active and informative
i have ordered the smallest reflector light 3x48 yes it is small

i am a small timer with around a 2.5 by 2 area and just want to see what i can do
with one plant (maybe two)
if i dont like it at least it wasn't bankrupture painful
take care and good luck
 
mzxsdi600 said:
Is there anybody out there that has been using Sara's ( Topgrowlight) reflector LED's ?
2 switches ,but only one works with fan ?
Can I run 1 switch at a time ? If No , why have 2 switches ?
I just purchased 144x3w and really would like to save hydro, but it seems the 2 switch thing has no bearing ?

P.s - the light is good , but if this is the case ( only 1 switch works fan) the ad should say u can not use each switch separately ( The ad says u can use 1 switch for veg and 1 switch for bloom , but it runs hot without both switches on ).
Click to expand...

I have the same panel and I was told by Sara that the Veg is the one that runs the fan and you have to have it on only in veg and both on in flower which would make it redundant to have the fan switch on both of the switches as both have to be on to bloom. Hope this makes sense and it helps.........:high-five:
 
yuyo said:
you guys have convinced me to take the leap,a small one anyway.
phlipper do you have a journal? you and icemud along with a few others
really got me over the buyer anxiety. i lurk all the people who use topledgrow lights.
thank you all for being active and informative
i have ordered the smallest reflector light 3x48 yes it is small

i am a small timer with around a 2.5 by 2 area and just want to see what i can do
with one plant (maybe two)
if i dont like it at least it wasn't bankrupture painful
take care and good luck
Click to expand...

Your going to love them. I have the 96x3w and just ordered 2 of the 48x3w.........:circle-of-love:
 
mzxsdi600 said:
Is there anybody out there that has been using Sara's ( Topgrowlight) reflector LED's ?
2 switches ,but only one works with fan ?
Can I run 1 switch at a time ? If No , why have 2 switches ?
I just purchased 144x3w and really would like to save hydro, but it seems the 2 switch thing has no bearing ?

P.s - the light is good , but if this is the case ( only 1 switch works fan) the ad should say u can not use each switch separately ( The ad says u can use 1 switch for veg and 1 switch for bloom , but it runs hot without both switches on ).
Click to expand...

The fans run with the veg setting, when you are vegging then veg is turned on and flowering is turned off.

When you are flowering, you use both switches on, which gives you the flowering spectrum, which is a combo or the veg + flowering switches.

The flowering switch just adds red and IR, but the veg setting and spectrums are also needed in flowering. So no matter what part of the cycle you are in, veg should always be turned on...

I use my reflector light only for veg, therefore it is nice having 2 switches because it cuts down on electricity usage when in veg.

There is no reason you would just want to run the light in the flower setting only, without the veg setting also on...unless you were using it to only boost the red as a auxillary light, not a primary light. And if this was the case, I would suggest getting just a strictly bloom boosting LED, with reds and IR.
 
Does anyone have a definitive answer as to which they think are the better light, the 3w reflectors, or the equivalent Mars 2's?

For example, i'm wondering whether i get 2 or 3 x 144x3w reflectors, or the 1200w Mars 2, or even 2 x 700w Mars 2's (for a 5 x 5 tent)

I've just got my tent, and my fans, and am so eager to get my light but i just want to make sure i get it absolutely right! It's the biggest expense of the lot so i really want to get it right! :)

Very confuddled!! lol
 
Back
Top Bottom