300 Watt Mars LED Light

Here is Eva she is a Bianca strain she is the one I moved into her own tent with my new mars hydro 300 watt.

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Here is pic without light been with the new light about a week now !
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They have grown great...:goodjob:
 
I worked out your space as 6.76 square foot (providing your measurements are in MM)

With a 300W mars which pulls roughly 135 actual wattage this would give you 20 Watts per square foot. This would be ok for veg but ideally for flower you'd want double that.

I'm currently using a 600W VIPARSPECTRA (actual wattage around 276W) and a Mars 300W (actual about 135W)

Always look at the actual wattage aswell as manufacture stated wattage.

You want to aim for atleast 35 actual wattage per square foot for flower. Obviously the more the better.

So far my lights are doing a brill job in my 8 square foot space. And if I had more money I'd love to give the mars reflector series a try as they do look great or there new COB lights.

My girls are currently week 6 of flower.

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I worked out your space as 6.76 square foot (providing your measurements are in MM)

With a 300W mars which pulls roughly 135 actual wattage this would give you 20 Watts per square foot. This would be ok for veg but ideally for flower you'd want double that.

I'm currently using a 600W VIPARSPECTRA (actual wattage around 276W) and a Mars 300W (actual about 135W)

Always look at the actual wattage aswell as manufacture stated wattage.

You want to aim for atleast 35 actual wattage per square foot for flower. Obviously the more the better.

So far my lights are doing a brill job in my 8 square foot space. And if I had more money I'd love to give the mars reflector series a try as they do look great or there new COB lights.

My girls are currently week 6 of flower.

420-magazine-mobile312081772.jpg
420-magazine-mobile1767347320.jpg
420-magazine-mobile763047418.jpg
420-magazine-mobile1360605108.jpg
420-magazine-mobile1120132270.jpg

:thanks: How long you have used Mars300 ?
Mars300 W with low draw power, marsII series and proII are more powerful.
 
:thanks: How long you have used Mars300 ?
Mars300 W with low draw power, marsII series and proII are more powerful.

I added the Mars in when they reached flower . it's a good little light for the price and I trust it to be safe to use compared to other none branded LED. I'm saving up for a Mars Pro II 120 Epistar as they look awesome and with a 270W draw would give me 67.5 Watts per square foot & id then keep my lil mars 300 for veg.

Some crazy tri production under these lights

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I'm running the mars hydro 600 with 3 girls flowering under it. Keep in mind, I'm doing this under the stairs in my house...so I don't have a lot of height to work with. Everything was lst.
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My plants have always highly disliked the mars300 (135watt+or- actual) footprint during flower. I grow 12/12 from seed currently. I have 1 mars300, 1 250watt 2100k cfl, and 184 watts of mixed spectrum 23watt CFLs (6500kx2, 2700kx5, 3500kx1) in my 48"x32"x60" tent. A total of 577watts
In my experience the mars300 does a phenomenal job vegging, but my plants switch to flower and they act like they are living in the dark. Now I rotate plants from under the mars to directly under my CFLs as soon as they show sex.
I have been looking at getting a single light to replace my "multi spectrum mess"... Unfortunately that may mean going HID with the budget I am working with. Most likely 600watt mh/hps, and then save the old mars for just in case my wife let's me build a veg area
 
mars 300 you need to be within 8 inches to get really good development. at 18 inches, it has 315 PAR, for really well flower development, you need to be closer, 8-10 inches. BUT, if you have your VPD in order, its possible to get really good fruit at 14 or so inches, but you lose footprint. at around 400 par, and proper humidity/temp ratio, AND the proper spectrum, ( 400-440/660-730 nm, ( need both ranges ) emerson effect for max photosynthesis.

315 par is OK for Veg, but likeyou said, flower isnt to good at 315par.

just some info
 
mars 300 you need to be within 8 inches to get really good development. at 18 inches, it has 315 PAR, for really well flower development, you need to be closer, 8-10 inches. BUT, if you have your VPD in order, its possible to get really good fruit at 14 or so inches, but you lose footprint. at around 400 par, and proper humidity/temp ratio, AND the proper spectrum, ( 400-440/660-730 nm, ( need both ranges ) emerson effect for max photosynthesis.

315 par is OK for Veg, but likeyou said, flower isnt to good at 315par.

just some info

I appreciate it. I've always been too paranoid to move the light that close as my wife's uncle has experienced bud bleaching with LEDs. In hindsight he is also running platinum 650's or something.
I moved the light to about 5" of my plant tops. They are in little hempys, and the foot print covers just two plants. At the moment they seem to be very happy and that makes me happy.
 
I appreciate it. I've always been too paranoid to move the light that close as my wife's uncle has experienced bud bleaching with LEDs. In hindsight he is also running platinum 650's or something.
I moved the light to about 5" of my plant tops. They are in little hempys, and the foot print covers just two plants. At the moment they seem to be very happy and that makes me happy.

Did mars 300 help your palnts grow better when you keep it closer to your girls?
 
Did mars 300 help your palnts grow better when you keep it closer to your girls?
Absolutely. Buds directly under it, less than 6" away, are much more dense than those further than 6" away. If I had 3 more of these 300's and used proper training techniques, I believe that I could have a better yield than with my current setup. I would draw about 50 less watts total, not sure if I would gain any heat advantage though.
 
Absolutely. Buds directly under it, less than 6" away, are much more dense than those further than 6" away. If I had 3 more of these 300's and used proper training techniques, I believe that I could have a better yield than with my current setup. I would draw about 50 less watts total, not sure if I would gain any heat advantage though.

great to know that. Could you share your growing pictures in our thread: Mars-Hydro LED Grow Light Discussion
 
Absolutely. Buds directly under it, less than 6" away, are much more dense than those further than 6" away. If I had 3 more of these 300's and used proper training techniques, I believe that I could have a better yield than with my current setup. I would draw about 50 less watts total, not sure if I would gain any heat advantage though.

Thanks for the report. I'm definitely going to set my Mars 300W much lower.
 
Thanks for the report. I'm definitely going to set my Mars 300W much lower.
A grower on here recommended to me that 8 inches will be about maximum distance during flower. Be sure to keep an eye out for bleaching, it probably won't happen, just my disclaimer,..
During veg you don't have to be that close . The 300 works very well for that. Wife's uncle clones and vegs under a 300 about 18 inches away
 
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