Is 300w LED light enough for a 120cm x 60cm tent setup?

A

AcademicMistake

Member
So i recently upgraded from a 40cm x 40cm using a mars hydro ts600 (100w light) to a 120cm x 60cm tent, and to go with that i bought a mars hydro TSL 2000 (300w light) will that be enough or should i get some vertical bars for the corners to supplement the 300w? For context and if it makes any difference, i will be using autos, namely, blue cheese auto(barney farm) and sour diesel auto(ice seed bank) in canna terra professional medium and biobizz nutes for veg and flower.
 
AcademicMistake said:
So i recently upgraded from a 40cm x 40cm using a mars hydro ts600 (100w light) to a 120cm x 60cm tent, and to go with that i bought a mars hydro TSL 2000 (300w light) will that be enough or should i get some vertical bars for the corners to supplement the 300w? For context and if it makes any difference, i will be using autos, namely, blue cheese auto(barney farm) and sour diesel auto(ice seed bank) in canna terra professional medium and biobizz nutes for veg and flower.
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FWIW I rarely turn my light up to 300 in my 3x3..
 
Should be ok, the viparspectra xs 3000 seems to do a little better, but it should be fine.

You could do some UV bars if ure into that.
 
8 square feet ( 4x2) divided by 300 = 37.5 watts per inch.

Standards are 45 per square feet for top light saturation . This does not mean you can not saturate with 37.5 watts per. You just will not be able to cram the tent wall to wall for yield. If you just use one less foot and keep the light concentrated on the other 7 feet you raise your light concentration to 42 watts per foot.
Training will be key.
 
It may even be a bot overkill: autos get much more total light per day since they arent constrained to 12 hours in flower; if you ran 300w for 18 hours its the same total light as 450w during 12h.
Keep it dimmed and look for signs for possible overlighting.
 
Rocket Soul said:
It may even be a bot overkill: autos get much more total light per day since they arent constrained to 12 hours in flower; if you ran 300w for 18 hours its the same total light as 450w during 12h.
Keep it dimmed and look for signs for possible overlighting.
Click to expand...

I didn't see that those were autos, my bad!
 
Jimski said:
8 square feet ( 4x2) divided by 300 = 37.5 watts per inch.

Standards are 45 per square feet for top light saturation . This does not mean you can not saturate with 37.5 watts per. You just will not be able to cram the tent wall to wall for yield. If you just use one less foot and keep the light concentrated on the other 7 feet you raise your light concentration to 42 watts per foot.
Training will be key.
Click to expand...
45w per is pretty excessive.
Unless you have small plants, with some serious growing space vertically.
 
Boatguy said:
45w per is pretty excessive.
Unless you have small plants, with some serious growing space vertically.
Click to expand...
I agree, 30-35w is usually ok for a tent, maybe a little more in an openspace and remembering in the end its not the watts, its how the light is spread around the growspace. I cant remember the form factor of Mars TSL.

Also, for anyone who missed it, do not connect anything Mars to the internet; they harvest your data even without consent.
 
I like to run my lights lower than they're rated for in order to make them last longer. It doesnt hurt to get a 300w fixture and only run it at 200-250w
 
Rocket Soul said:
I agree, 30-35w is usually ok for a tent, maybe a little more in an openspace and remembering in the end its not the watts, its how the light is spread around the growspace. I cant remember the form factor of Mars TSL.

Also, for anyone who missed it, do not connect anything Mars to the internet; they harvest your data even without consent.
Click to expand...
To be fair its thin and wide, its 4 inches roughly, off each end off the left and right side walls so its pretty good size for my tent in particular.
 
Thanks for comments people, im certainly looking forwards to it this time round compared to my last set up which was tiny and the buds where pretty underwhelming using a 100w even in a 40cm x 40cm tent, also looking at biobizz bloom its 2-7-4 NPK so ill likely find some organic matter to add to bring up that potassium level in flower, never had an issue in veg they grew fairly quickly easily 4-6 inch a week
 
AcademicMistake said:
So i recently upgraded from a 40cm x 40cm using a mars hydro ts600 (100w light) to a 120cm x 60cm tent, and to go with that i bought a mars hydro TSL 2000 (300w light) will that be enough or should i get some vertical bars for the corners to supplement the 300w? For context and if it makes any difference, i will be using autos, namely, blue cheese auto(barney farm) and sour diesel auto(ice seed bank) in canna terra professional medium and biobizz nutes for veg and flower.
Click to expand...
300 watts is plenty, these autos are in canna terra professional under a viparspectra ks3000 at 100 percent 18/6. so thats 300 watts spread evenly in a 3x3. Ppfd range is 550 to 750 all plants are 5 weeks to 8 weeks from sprout. With autos you can run your lights at a lower setting and have them a bit closer to extend the life of the fixture and due to dli your ppfd requirements are less than photoperiods. I have learn't to give them as much as they can handle to get a better yeild product etc.
 

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AcademicMistake said:
To be fair its thin and wide, its 4 inches roughly, off each end off the left and right side walls so its pretty good size for my tent in particular.
Click to expand...
Ok, the single bar style light? that should be plenty :)

For those more "centre hotspot" lights 300w could well be a bit too much for a wide tent.
 
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