mars hydro 300 watt led
- Thread starter Don Geno
- Start date
Abiqua
Well-Known Member
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....
black jesus
Well-Known Member
Man I was about to post the same question. I'm growing 9 autos in a 3x3 area. And as of now there are under a 600 hps dimmed down to 50%. My room is sitting at 85f and was hopping the led would keep the temps down since it will get hotter out here soon. So the 300w mars led won't work compared to using 300 hps???? Please help me on this. Looking to order next week. Or should I run 2. Funds are low was thinking 1 for now and another in a few weeks
black jesus
Well-Known Member
Oh and the autos are not fem. so I'm looking out for males. I guess I will have 4-6 females at the end of the day....
black jesus
Well-Known Member
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
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
Don Geno
Well-Known Member
That sounds right to me brother 2 300watt with actual power draw of 180 would be 360 a 250 watt hps takes a 2x2 so with 90 extra watts might be well maybe not huge massive yields but veggin a good while might be key and keeping lights as close as possible imma give it a try and add cfls to it if needed outta cash for now
Darth Vapour
Well-Known Member
as far as i am concerned if they say 300 watt LED for 12 sq feet double it so you wont be so disappointed come harvest time so in a sense mars 2 900 watt is what i would run
greenghost420
Well-Known Member
i was gonna put the mars 2 900 in a 4x4, think the 250 hps will out perform it?
Darth Vapour
Well-Known Member
not a chance lol i am not a LED guy but would bet the 900 would kick the 250 HPS not even competition
Budzbuddha
Well-Known Member
Bedroom grow - Mars Hydros vegging and flowering. They perform well.
black jesus
Well-Known Member
What size are those? I'm running autos. And I if it does save power or better yet less heat I have no problem running it for 24/7... I just don't want end having to have get 3 of them.... So 1 300w mars led won't work? Will 2 compare to a 300 hps
Budzbuddha
Well-Known Member
Run AUTOS at 18/6 , both of my tents are on 18/6 each. ( they show two different weeks of growth ) , I'm not pushing lifespan of LEDS by sticking to NORMAL use. You can also run 12/12 seed to harvest. You can definetly keep electricity costs manageable.
Tip : if running cycle ( whether 18/6 or 12/12 ) Make sure timers are set exactly the same - Both on and both off. I run tents open ( until later hours prior to dark period to help exhaust extra heat. )
Mars Hydro 600w (2) full spectrum and Reptile UVB
black jesus
Well-Known Member
So each tent has 600 watt led panels
Don Geno
Well-Known Member
black jesus
Well-Known Member
I'm still stuck. I was hoping that I could get away with a 300 watt panel for 4-6 autos. Keeping the light on 24/7 would help right. If I need 2 I will do that also. But my light now is hot as hell....I'm thinking maybe a stronger fan but my setup calls for a 4 inch fan
greenghost420
Well-Known Member
i go 20/4 for autos
black jesus
Well-Known Member
Yeah I would do 24/7 but the heat is crazy right now. It's in the 90s outside now.
1Zigzagman
Well-Known Member
i ran 2 autos under leds, various size n watt i dont have a mars yet though the 5w mars hydro 2 400w* is my next n final purchase i think, my buddy has been using the 300s u guys are talking about n he loves them, hes getting rid of much more expensive leds and buying more, .... i dont own one yet but have seen his in action and i admit hes pulling super dense nice bud frosty stinky shit
black jesus
Well-Known Member
So would a 300 be enough for an 3x3 area with 6 autos?