Watts per plant ?

[smj81]

I just read this does it sound about right ? In growing outdoor but have a shed ive been thinking about growing a max of 1 or 2 plants in. From the look of easiness probably that dwc method. Most likely in a small grow tent. Im only thinking this for the cooler months in south eastern NSW. https://www.ledgrowlightsdepot.com/blogs/blog/16326275-how-many-led-watts-are-required-per-square-foot-of-grow-space

[DrBlueThumb]

Too many variables. I've seen 1000w for 1 plant but it was a big motherfucker.

[smj81]

But that 1000w wasn't in a 1x1 foot enclosure was it? Did you look at the charts ?

[Carnage]

make the grow area as big as you possibly can to begin w/.

you will only expand later it due to 'lack of area'.

[hydrochronic]

The article doesn't explain it very well because LEDs have such varied quality and efficiency and coverage, Watts are a unit of consumption only, not output so it's no use having 1000w if it is not evenly distributed across the grow space which i think is a problem for a lot of LEDs. . You need to know that the light being output for said watts is usable, so you want to look at the PAR ratings for said LED light. If it's not advertised it probably sucks. 

 

http://www.lumigrow.com/demystifying-lumens-lux-par/ 

 

Plant biologists define light in the 400nm to 700nm spectral region as “photosynthetically available radiation,” or PAR. The unit for measuring PAR, micro-mols per second (μmol/s), indicates how many photons in this spectral range fall on the plant each second. Inexpensive PAR meters use sensors that respond over the entire 400-700nm spectrum, and have their own sensitivity curves that require different calibration for sunlight, fluorescent and HID lighting.

 

Ideally you want something like 600-800 PPFD per square foot which can yield 2lb in a 4x4 space using around 600w if all other conditions are right too. If you have too much light above 1000 PPFD then your no longer being efficient and can actually have too much light, and you start needing CO2 for the plant to be able to use the additional light. 

Edited March 6, 2017 by hydrochronic

[pedro de pacas]

2 pounds from  600w =1.5gms a watt

I'd like to see that,

I struggle to get 1 gm a watt with everything going right

Would be interested hearing if anyone gets more than 1 gm a watt on a regular basis

[hydrochronic]

2 pounds from  600w =1.5gms a watt

I'd like to see that,

I struggle to get 1 gm a watt with everything going right

Would be interested hearing if anyone gets more than 1 gm a watt on a regular basis

 

Check out this guy on YT

https://youtu.be/nPqLAjcJ4vY?t=407

 

I been learning a lot from his channel, think i watched every video he has except the 2 hours ones over the last few weeks. 

Edited March 6, 2017 by hydrochronic

[Carnage]

2 pounds from  600w =1.5gms a watt

I'd like to see that,

I struggle to get 1 gm a watt with everything going right

Would be interested hearing if anyone gets more than 1 gm a watt on a regular basis

 

c02 enrichment - your answer, research it. it's where its at.

[pedro de pacas]

I could try "co2" but the little fuckers are outside all day playing

Probably should get a ppm stick first and maybe check the ph more than once

 

Mind you a couple of them 315w's might do alright, a bit pricey though

[Gazza2001au]

2 pounds from  600w =1.5gms a watt

I'd like to see that,

I struggle to get 1 gm a watt with everything going right

Would be interested hearing if anyone gets more than 1 gm a watt on a regular basis

 

Kickarse, LED technology is actually sweeping us growers off our feet mate, check out "Techni Grower" on Youtube i was recently following his weekly uploads he grew 4 plants in DWC i think his area was 2x1 meter or 2.2x1.2 meter something like that he used 10 COB LED's the ones I'm using per his growing area and in his week 8 or week 9 video he says in his msg's he pulled over 1kg of bud, now take this into consideration his 10 lights only use 500watts of power!

 

and Techni Grower is a Aussie too