mars hydro 300 watt led

ray2013

ray2013

Well-Known Member
Abiqua said:
Each unit runs about 150-165 watts actual wattage...so running two is just going to give you north of 300 watts and less efficient or approaching CFL efficiency while costing twice as much....thats a little lite per a 3x3 especially in 4-5 gallons....

Buy a 400 or a 600....this coming from an LED diehard....
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Greetings I have a 6×5 grow area my plants will be grown in a scrog. Will 2 mars 900 watts leds give me enough coverage? Also, will they give me 40 or 50 watts per square feet
 
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ray2013

ray2013

Well-Known Member
black jesus said:
Found this. Don't know how good this is but it's a start


2. WHAT IS THE SIZE OF YOUR GROW SPACE?
The size of your grow space will dictate the size and number of an LED units you purchase. A good rule-of-thumb for grow lights is to purchase 25-40 watts of actual power per square foot of growing space. For example, if you measured your growing space to be 16 square feet, you would want to purchase a 400 watt to 600 watt panel (assuming the plants are congregated in a single area). Furthermore, concentrating 100-160 watts of power per plant (or 4 square feet) will give your plants the energy they need to grow and flower.


If using many LED grow light panels for a larger grow, ensure that there is overlap in the light footprints. Doing so will allow all of your plants to receive the required light needed for superior growth. Therefore, more panels or larger panels are always a safe investment.


Below is a quick reference chart designed to help you determine the desired wattage based on your grow space. If you have a larger grow space, you can scale up from these numbers. Remember: 1 sq ft of grow space requires 25-40 watts of LED power.


Grow SpaceWattage
2 sq ft (2x1)

50-80

4 sq ft (2x2)

100-160

6 sq ft (2x3)

150-240

9 sq ft (3x3)

225-360

12 sq ft (3x4)

300-480

16 sq ft (4x4)

400-640

20 sq ft (4x5)

500-800

25 sq ft (5x5)

625-1000

30 sq ft (5x6)

750-1200

36 sq ft (6x6)

900-1440

40 sq ft (6x7)

1000-1600
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Greetings, for a 30 square feet area would (2) mars 900 watts leds be enough to give 40 or 50 watts per square feet? Thanks for any information .
 
Tim Fox

Tim Fox

Well-Known Member
Search on rollitup for a user named realstyles he has Mars 900s sitting in the corner that are near new with led chips burnt out, those cheaply built five watt diode LEDs put off so much heat and are so inefficient , there are many advertisers on here offering cree cob led grow panels that will knock the socks off any Mars light
 
black jesus

black jesus

Well-Known Member
Tim Fox said:
Search on rollitup for a user named realstyles he has Mars 900s sitting in the corner that are near new with led chips burnt out, those cheaply built five watt diode LEDs put off so much heat and are so inefficient , there are many advertisers on here offering cree cob led grow panels that will knock the socks off any Mars light
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The problem is the price. You will end up spending big bucks if you don't DIY from what I can tell
 
Tim Fox

Tim Fox

Well-Known Member
black jesus said:
The problem is the price. You will end up spending big bucks if you don't DIY from what I can tell
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That's true, but those Mars 900s are a pretty penny as well, but your money is far better invested in cobs, if not I would just put a600 watt hps bulb in there instead, I build and have built several diy cob panels
 
superbak3d

superbak3d

Well-Known Member
Tim Fox said:
Search on rollitup for a user named realstyles he has Mars 900s sitting in the corner that are near new with led chips burnt out, those cheaply built five watt diode LEDs put off so much heat and are so inefficient , there are many advertisers on here offering cree cob led grow panels that will knock the socks off any Mars light
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Or just look at my grows. Funny how my mars grows shit all over his and yet I'm still using the same panel with zero issues.

Wonder why his diodes burn out in days, yet mine have been running hard for months and zero failures. HMMMMMMM
 
Tim Fox

Tim Fox

Well-Known Member
superbak3d said:
Or just look at my grows. Funny how my mars grows shit all over his and yet I'm still using the same panel with zero issues.

Wonder why his diodes burn out in days, yet mine have been running hard for months and zero failures. HMMMMMMM
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YouYou would need to ask him I don't speculate, but I will tell you my Mars panel is our in the barn in storage because my cree cobs kick that Mars pile all day on yield and less electricity, glad your happy
 
superbak3d

superbak3d

Well-Known Member
Tim Fox said:
YouYou would need to ask him I don't speculate, but I will tell you my Mars panel is our in the barn in storage because my cree cobs kick that Mars pile all day on yield and less electricity, glad your happy
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I'm using cxbs now too ya know.

Doesn't change the fact the mars is still a good light for it's price.

Personally though, i think realstyles is a fool for spending the money on the expensive mars panels, not only that, but buying them multiple times. I think that says more about the user than it does the light.

for 60-80 dollars and thrown in a small tent, the mars does what it's supposed to with good results.

The people trying to flower 4x4 and 5x5 tents with them on the other hand, are just dumb.
 
SAF-T 47

SAF-T 47

Active Member
beanzz said:
I switched to 4 x 1000w and dont need them anymore, I'm using them in veg room now
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I'm curious if it was just time for an upgrade or did you find the Mars300 not able to pull its own weight, so to speak?
It's not idle curiosity, I have my finger in the "buy now" button but am afraid 2 × Mars300 won't fully replace my 1,000 HPS.
 
Tim Fox

Tim Fox

Well-Known Member
SAF-T 47 said:
I'm curious if it was just time for an upgrade or did you find the Mars300 not able to pull its own weight, so to speak?
It's not idle curiosity, I have my finger in the "buy now" button but am afraid 2 × Mars300 won't fully replace my 1,000 HPS.
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TwoTwo Mars 300 won't come anywhere close to 1000 hps
 
beanzz

beanzz

Well-Known Member
SAF-T 47 said:
I'm curious if it was just time for an upgrade or did you find the Mars300 not able to pull its own weight, so to speak?
It's not idle curiosity, I have my finger in the "buy now" button but am afraid 2 × Mars300 won't fully replace my 1,000 HPS.
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No, I just wanted to get some real power going. The mars were only for supplemental lighting anyway, I never expected big things from them.
 
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