Mars-Hydro LED Grow Light Discussion

[Budworshipper]

I am going to show my age but my first lights I had for indoor were HID / HPS and we had to get our parts at a commercial light supplier (street lights) and mount it on a piece of 2 x 12 since there were no commercial ballasts or enclosures for anothjer couple years so they have done a lot for this hobby and will be around for many more years but it is time to embrace the new technology and move forward

A true growing pioneer.... Much respect to you....

My mate mono swears my his HPS set up.... Reckons my LED upgrade is going over to the dark side.... His grows are awesome, so he aint gonna change soon... Fair play, each to their own... Im going LED for stealth reasons, have considered a 250 or 400w hps myself.... Discounted it for heat and running costs....
Never know, a new development may come out for HPS.... Just like digital ballasts over magnetic ballasts.... They manufacturers may make a comeback against LED.... Its alot of revenue afterall

 

[Budworshipper]

P

Does anybody know the PPFD for the

Mars II 1600 covering the recommended 4.2' x 4.2' ?

and

MarsPro Cree256 covering the recommended 4' x 4' ?

And can anyone point me to any par readings on the whole 4x4 footprints ?

Hi there and welcome to

Hopefully someone can answer that question for you soon.... If not, sara will be back here soon, she will be able to help you out....

National holiday in china at the moment...

 

[Jesse pinkman]

Sara youve already seen my work but would love to test the new light some of my plants:


Exodus cheese (uk clone) HPS

Royal queen critical: (mars2)

Bomb seeds big bomb: (HPS)

As you know i like to grow single plant beasts so would love to test ur light and see how well it can do

 

[iseckz]

WOW teach me your ways. How long is the veg for?

 

[Kriaze]

Sara youve already seen my work but would love to test the new light some of my plants:


Exodus cheese (uk clone) HPS

Royal queen critical: (mars2)

Bomb seeds big bomb: (HPS)

As you know i like to grow single plant beasts so would love to test ur light and see how well it can do

I wish you had a journal, they're beautiful

 

[LEDBud]

I agree with that !

My old favorite was the Son Agro HPS bulbs , I have a 400w digital ballast and a commercial reflector laying in wait.

A nice back up really or even for veg while using led's for flower ( this may well happen )

Good points...... Too much HPS power is wasted as heat i think.... But in fairness, those lights are definately in the " weed hall of fame" for me.... They have proved effective and without them the industry wouldnt be so advanced without them... The power has developed outstanding strains, via the breeders.... But like most things, technology marches ever onward.... Bless you HPS, but it will soon be time to totter off into retirement and get a well deserved rest....

 

[LEDBud]

Good taste !

I wish you had a journal, they're beautiful

 

[ugdfuiga]

Here it is

 

[ugdfuiga]

And here is 4*1200w over 18 in a 4x8

 

[ugdfuiga]

I'm pretty sure the temp and humidity on the remote is from the remote, lol, yep , the light has been on for a while and no change in either temp or humidity, it's reading from the remote , so that is surely a wasted function , oh well .

 

[iseckz]

you mean the remote needs to be inside the grow to read correctly??

I'm pretty sure the temp and humidity on the remote is from the remote, lol, yep , the light has been on for a while and no change in either temp or humidity, it's reading from the remote , so that is surely a wasted function , oh well .

 

[ugdfuiga]

Yes , lol

 

[b.real]

what's the "scan me for lowest price" sticker for?

 

[Icemud]

I found the videos interesting for the PAR tests, and happy that Mars is doing the tests... but I noticed a few things...

First off, based on the data on the charts, the coverage for these lights should be 2x2 at best, not 3x3 like they are rated for optimal light levels. Even for VEG lighting the data is only showing 2x2 for optimal results.

also...

Looking at these charts, by the color coding, anything above the royal blue color is optimal for flowering exceeding 600micromoles/m2/s-1, which means dark blue, purple, orange, yellow and red are all ranges for optimal flowering.... anything that is royal blue is borderline minimal light requirement (450umol - 600umol) and grey color is not enough light. (Greater than 510 is base line minimum for optimal flowering, 800umol-1000umol should be the target for optimal light)

With that being said, the tests with the 700w with lenses actually seem to provide a better area of coverage (almost 2'x2'), where as the ones without lenses look to be poor above 18" away (only covering about 1 1/2' x 1 1/2')...

The 700w with lenses actually provides a larger grow area on all 3 heights based on their data...So why do they not use lenses when their tests show that they actually provide better area?

This is not meant in any way to be a controversial post, but to put application to the data they provided and bring up these questions..

Why don't you use lenses when they clearly show a better coverage area with more light intensity?
Why is the panel listed at 3'x3' when the data clearly shows only 2'x2'?

discussion? and BTW good job on the video girls!

 

[randy355]

you mean the remote needs to be inside the grow to read correctly??

Sara commented about that a while back and they do not recommend leaving the remote in the grow room. This is what happens when items are designed for growers by non growers but on the bright side the lights look great and well made so hopefully changes will be quick and the comment was made that the lights are designed to accept new upgrades.
There is another light out there that has a great control system but the lights are a few generations behind and don't look like a lot of thought went into their design. I will take a great light with control issues any day I just really want to see a Cree test or at least in depth specs and output results I really wonder about coverage with the curved design

 

[LEDBud]

The lens on the LED's concentrate the light to the center excessively and very little to the sides.

The panel without the secondary lens provided a large degree of uniform coverage.

I understand it as the video describes and is why I will never buy a led with a secondary lens.

My Preference is to keep the lights 12 to 16 inches above the canopy to make use of the panels output.

 

[arellanobrian]

Weekly update on the ThunderHaze auto and Dark Dragon seeds from #kingdomorganicseeds. the camera was acting up this week so i had to do the shoot over and over again haha sorry if it seems a bit weird this week. hope you all enjoy!

 

[Terp]

Data on cannabis shows that you hit the optimum rate of growth efficiency at around 900 / 1000 and can utilize up to 1500. I don't understand why the chips are so close together? If I had a 4000 watt 8x8 HPS grow, I wouldn't stuff all 4 bulbs in the middle of the room. You wouldn't get good even coverage no matter what height ya out them. I'd center each one over each 4x4 area.

 

[Dave Groomer]

Just a few pics of the girls in the tents.

The Veg tent. The clones are mostly up front.

And the flower tent.

 

[David Bowman]

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