Mars-Hydro LED Grow Light Discussion

[Mars Hydro]

Happy Independence day to all of you, my US friends! Happy holiday!

By the way. HAPPY 4TH OF JULY to all of our US friends!!!

 

[Mars Hydro]

Rook, MarsII 1200w can cover 4.6'x4.6' at the heigh of 24'. You hang it higher, the coverage will be more. 2pcs MarsII 1200w will perform very well in your grow tent.

hI Sara looking to get 2 Mars 2 1200w for a 5x5 would that be good?

 

[Mars Hydro]

she is elegant and reminds me of the lotus.

I just entered my Critical Super Silver Haze in the plant of the month contest.

She's a beauty, Supergroomer!

Thanks man. She may not be the biggest I have ever grown, but she is purdy!!!

 

[PeeJay]

very sweet weekend with families!
This weekend, I went to lotus garden to take dozens of photosSummer comes, the buds are all blooming.

Sara, that sounds pleasant. If you want you could post some lotus garden pictures here:

The beauty of the changing seasons

We like flowers there and you already have friends there.

 

[Mars Hydro]

Hi, whoever1, we have updated our old model 100x3w to 60x5w now, but on Ebay, you can still find old model 300w. Old model doesn't include IR while Reflector has.
As you said, the design of Reflector is much better than old model. The reflector feature will assure 100% lumen output. Glass will eliminate some light output.

Hello, This has probably been asked, but I don't have time to read 900! pages to find answer.

Need good light for 2 foot x 2 foot scrog footprint.

Been looking at the 150w Reflector series, green with the veg/bloom switch.
Also there is the "old School" non reflector 300w version.

Old school is cheaper and has more watts, no growth switching.
Reflector uses less energy and has growth switches, lil more expensive.

Anyone with experience recommend which unit is better?
Light penetration I don't feel will be issue with a scrog, so i am not
considering the 5w series.

Thanks for any advice!

Oh guess I should ask if there is IR chips on these two models?

thank you, supergroomer.

With the square footprint like that, you might want to consider a 400. It would give you 45 w/sqft. You want between 35 and 50 w/sqft from the wall. The 400 uses 180 watts. 180/ 4sqft=45w/sqft.

Yeah but the reflectors are glass free and therefore more efficient. Scrog dosen't need the mad
5 watts to penetrate a 3 foot plant. and 2x2 not 3x3, that seems like overkill. Though math
was always my worst subject. Removing the glass out of the old style 300w would probably be
a nice up in power.

 

[ganjazz]

Baby buds in forest

 

[Mars Hydro]

Yes. you can. Randy is right. The total watts should not exceed 1000watts.

Hi Sara quick question can I plug a 192x3w reflector into a MarsII 80x5w daisy chain adapter ? Any one know thanks

They advertise it will support a 1200 watt total draw so you are safe just plug your 192 x 3 into your Mars 2 it is the actual wall watts or draw that is used for the total

Sorry I got hung up on 1200 watts the total watts is 1000 watts for daisy chain use

 

[Mars Hydro]

Thank you robert. I am so great to see your beautiful girl.

Hello Sara, I see you are still working hard. Here is a Purple Buckeye pic , 4 weeks, under Mars 2 900w. Hope you are doing fine.

 

[Mars Hydro]

Tabor, you will get 96x5w. Enjoy!

Just purchased a 96x3w reflector from the website (shipping to US). Should I expect it to be 96x3w or 96x5w?

 

[Mars Hydro]

They two seems get along well with each other.

Hi Sara. I ordered a 144x5 to put in a new 4x4 tent a couple of weeks back. It arrived quickly and I'm most pleased with the light. Here it is alongside a 128x3 that is a couple of years old. Your company did not sell the 128X3 long. It is an old style light with a grow/bloom switch and has been a trooper.

 

[Mars Hydro]

maccamoo, the thing is like this, the draw power will differ from voltage. It's 548w under 240v and 559 under 120v, but MarsII 1200w can replace 600w hps. I will ask them to update this infomation.

Has anyone plugged a mars 2 - 1200watt Pannal into a energy usage meter?

Iv just had a look at my smart meter reading for the last couple of weeks.

Take today
My light + my inline fan + small oscillating fan plus 2 led tv's are all currently running right now in my home and my electrical smart meter tells me that the house is using a total of 589watts

I read and seen a mars video that said the mars 1200 pulls about 600 watt alone?

This with my mars 1200 and everything else listed above

 

[Mars Hydro]

the wide variance is due to voltage differences. For MarsII 700w, the draw power is about 315w under 240v and 322w under 120v. Ha, voltage is different, draw power is different. In your situation, 328w may not be the acutal operating wattage.

I have a question regarding the Mars II 700w Led. On the Mars hydro website it says this light draws between 300- 380w. Why is there such a wide variance ? And I think somewhere else on this thread someone hooked one up to a killawatt and it was showing a reading of 328w, can I take it then that this is the actual operating wattage for this light?

Moring Dennise

Yes....

 

[Mars Hydro]

PM sent.

Sara, are you offering any discounts to members and especially one with a Mars ll 1200 already? I am thinking of getting another Mars ll 1200.

Med if you use cofinest in the coupon code it does give you a bit of a discount... I honestly can't remember how much but it is 2 or 3%....

 

[Dennise]

Morning Sara....

 

[Mars Hydro]

thanks very much for the thorough explanation.
Our Epistar white uses warm white 3500K.

I was wondering this myself, so let's explore the subject some...

A good way to compare the lights is to take a look at the datasheets for the LEDs. But the problem is that we don't know the exact Epistar part numbers for the diodes that mars-hydro uses for their current lights. What we do know, is that the new lights will be using Cree XLamp XP-E diodes.

What we could do, is we could take an educated guess at what Epistar parts M-H is using.

Here are all the Epistar products. Strangely, they don't seem to list any white diodes on their site?

But for the red part of the spectrum, I would choose something like the ES-SMBRPN42C, which is a 660nm 700mA diode, with characteristics like this:

Now lets compare that to Cree's XP-E Photo Red:
We notice that the Cree diode has around 40% more radiant flux compared to Epistar diode @ 350mA (the relative luminous flux increase for both devices is near linear for increased forward currents).


Let's look at the blue side of the spectrum. I would probably go with something like the, which is a 450nm 1000mA blue diode, with characteristics like this:

And compare it with Cree Royal-Blue:

0-20% more radiant flux, depending what group they choose.

What about the White? That one is a bit trickier, because it seems to be hard to find any information about white Epistar leds. This is the best source of information that I could find. So lets say the Epistar white diodes reach a radiant flux of 180-200lm @ 800mA and compare it to Cree XP-E:

So depending on the group you choose, a Cree XP-E white would have a radiant flux between 190-232lm. 5-22% more than Epistar.

Another thing to consider is the relative radiant flux vs junction temperature. Here you can see that for example with the red epistar led, radiant flux drops just below 80% when junction temperature reaches 50C:

And compare that to Cree:
At 50C, we still got ~97% of the radiant flux.

But things are much better for the Blue Epistar led: ~95% @ 50C

So the blue one comes very close to Cree

As for the White Epistar led, since I can't find a proper datasheet for it, so it's hard to say how it compares to Cree in this aspect.

 

[FedLagNoMoe]

Hi Sara,
Can you tell me what the details of the current 144x5w reflector are? The web page seems to still have the old data. Coverage, watts drawn, etc...? Are the prices listed still correct? Thanks!

 

[Mars Hydro]

The coverage is the same and draw power is close. The difference lies in canopy penetration. 5w has better penetration, for sure.
Ha, the price of 144x5w is correct. Not every warehouse has 144x5w, so the data is still for 144x3w. We will soon update the info after all are stocked with 144x5w.Hmm... then, the price will increase. Anyway, not now, feel safe to order.

Hi Sara,
Can you tell me what the details of the current 144x5w reflector are? The web page seems to still have the old data. Coverage, watts drawn, etc...? Are the prices listed still correct? Thanks!

 

[Mars Hydro]

Awesome! I will check there. Thank you, PeeJay!

Sara, that sounds pleasant. If you want you could post some lotus garden pictures here:

The beauty of the changing seasons

We like flowers there and you already have friends there.

 

[Mars Hydro]

"I wanted to bloom" lol

Baby buds in forest

 

[Rook775]

Rook, MarsII 1200w can cover 4.6'x4.6' at the heigh of 24'. You hang it higher, the coverage will be more. 2pcs MarsII 1200w will perform very well in your grow tent.

Thank you just ordered a hour ago can't wait.