Quantum Board Yield

[StonerCol]

I see efficiency measured on the GPW dryed model. We know you gain POWER efficiency thru less heat produced, less heat to move out of the area, less AC. just as stripping and defol make the grow more efficient due to less humidity.

So like StonerCol said, different efficiencies.

I think what matter at the end of the day is, produced fruits of weight/against Power used to finish.

I agree. There's no point having the most efficient light on the planet if other inefficiencies pull it down. It's a chain and each link plays its' part imo.
It's obvs better to have a good efficient COB/Board and increase the other efficiencies which will all help for a better end result.
I'm growing in soil and plan to make my own compost with the usual garden/kitchen waste and added beneficial bacteria. That'll decrease the need for nutes thus increasing overall efficiency of the grow.

 

[Justaquickquestionforyou]

So why is no1 posting their results?

 

[torontoke]

I use two pcb boards with 304 Samsung diodes.
Meanwell 240 dimmed down to 175watts
First run yield was 355grams
Second was 260

 

[Randomblame]

When you talk about LED effiency the terms used is lm/w, not gram/w or anything else. For a grow light we calculate effiency usually in PAR/w, regardless of whether LED's or hps is used.
Better effiency means more light and less heat for the same amount of power.
100w of COB with 50% eff. = 50PAR/w of light, 50w of heat,
100w of COB with 60% eff. = 60PAR/w light, 40w heat.
The lower the current the better the effiency. Usually you need twice as much LED's driven at half the current to get ~10% better effiency. IE, if you have a 4 COB setup, add another 4 COB's in parallel to your exsisting driver and you get a nice 10% effiency bump. And it is most probably cheaper as to replace the whole unit by a new one.

 

[InTheValley]

not sure if you like the 3-5W diodes for the colors or for the size, but smaller cobs like clu038 and the cheaper clu048 would pretty much destroy any of those on efficiency when run at 10W a chip, and there are all kinds of lenses for them. a bit more expensive per watt but prob 50%+ efficiency gain over most 3-5W monos.

I use 4000k 3W diodes, I think having more on lowers end watts, spread over entire area, with LENSES, these are awesome, *shruggs, but thats just me. I have little to compare to right now, lol..

just a preference right now is all.

 

[VegasWinner]

When you say efficiency do you mean more lumens/Watt? I ask because a lot of people talk about efficiency but it can mean slightly different things to different people, depending on their way of thinking.

My version of efficiency includes driver size, current draw, kw/h draw for the light before I look at how well the light performs. I want to know how much operating cost is monthly and compare based on that criteria. I used HPS, T8, LED, etc. I am looking for the lowest total operating costs, i.e. HPS light, exhaust fan, cooling needs, as a single operating cots not just the bulb and the power supply alone as all parts are needed for operation.

After all that, than I look at production per watt or lumen, etc, and actually I look at production per dollar for a light including yield of all products, including oils, resin, hash, budz, etc. More like a business approach on a personal level.

Efficiency means many things to many people, but the question is are any of them wrong? NO. All answers are correct for the person giving the answer.

That is called personal beliefs. We all have those.
namaste

 

[VegasWinner]

I use two pcb boards with 304 Samsung diodes.
Meanwell 240 dimmed down to 175watts
First run yield was 355grams
Second was 260

what do you think was the difference? genetics? do you scrog or sog?
myself, I lazy grow, let em go until they pass the veg line, than they move to their new home and head for the home stretch, usually about 18" tall from veg to maybe 36" or so in final bloom. I have no scale so I have no clue. lol
just wondering

 

[torontoke]

what do you think was the difference? genetics? do you scrog or sog?
myself, I lazy grow, let em go until they pass the veg line, than they move to their new home and head for the home stretch, usually about 18" tall from veg to maybe 36" or so in final bloom. I have no scale so I have no clue. lol
just wondering

The first run had a few heavy yielding indicas. The second run had a few satys.
My goal is a full cabinet of indicas and push a full lb out of 180watts.

 

[VegasWinner]

The first run had a few heavy yielding indicas. The second run had a few satys.
My goal is a full cabinet of indicas and push a full lb out of 180watts.

sounds good I love Indica's but i like Sat's too. what a quandry