Power Savings from COB switch...REAL Numbers

Hybridway

Hybridway

Well-Known Member
a mongo frog said:
You guys do awesome things!!!! Those look like the phantoms with removable ballasts!!!! I love all the LED and COB pics as well. But i mean I'm paying 100 bucks for 1000 watt of DE and what a LED guy is paying 70 bucks for 750 watts to cover 24-25 square feet? Not talking whats better, i just haven't been excited to use my cobs yet. One day i will!!!!
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Thnx man! Fire dem daer Cobs up! Think you'll be pleasantly surprised! Do yourself a side by side. That was the only way I was gonna convince myself. Made a pretty big switch based on trial runs. @sixstring2112 seams to making the switch n liking the results too. He's always showing robust ladies n I'm pretty sure he was all HPS.
 
since1991

since1991

Well-Known Member
doz said:
Yes, I understand that, but that is why you save the money. You do not have to run as much COB lighting to match HPS, which is where the savings is at. Either way you look at it, you are saving. Although, at 1000w in a 4x4, you are pretty much spinning your wheels and wasting energy with COB. The yield of 1000w in 4x4 compared to 600w in 4x4 is small. I have never yielded less than 1.2gpw in a 4x4 with my COBS @ 600w. Very few people can even achieve 1gpw with HPS (flame suit on for all the turds out there who claim 1gpw every grow with HPS when in reality, its uncommon... Stop measuring your plants on the vine!). I know that I can yield a bit better if I added 200w, but I am pretty content with yielding what I do.

You are now getting into space limitations. If you dont have limitations, of course 1000w of cob will blow away 1000w hps and what you are saying is 100% true. I am just using a common 4x4 setup as example.
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I like your comment about growers who try and push this gram per watt with traditional hps lamps and always claim iys easy at that when in reality. ...THE REAL WORLD...not many truly hit it and even less surpass it. Thats the truth and ive been growing for decades. You can tell they are third grow pros when they say its easy and they say or show a pic of air cooled hoods. Lol and no co2
 
HydoDan

HydoDan

Well-Known Member
Actually grams per watt is a poor way of judging your grow... I ran a local dispensary grow for years..
bottom line is total cost per gram.. including every penny spent.. I really don't know if we hit a gram per watt.. don't care..
 
since1991

since1991

Well-Known Member
HydoDan said:
Actually grams per watt is a poor way of judging your grow... I ran a local dispensary grow for years..
bottom line is total cost per gram.. including every penny spent.. I really don't know if we hit a gram per watt.. don't care..
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Its the old way to judge a grow for sure. Made popular by the books written by jorge cervantes back in the day. With all the new lighting technology out now...the cost per gram makes much more sense. Especailly the bigger operations.
 
D

doz

Well-Known Member
On the high end, first grow w/ 1000w of LED and all costs associated for startup and first run is about $2500. Thereafter, no more than $550/grow for everything I need including electricity/water.

Yield about 1250g per run so you do the math :) Either way, well worth it :D Even @ $2500 first run w/ 1250g, thats only $2/g. Cant beat that price!
 
S

Shugglet

Well-Known Member
HydoDan said:
Actually grams per watt is a poor way of judging your grow... I ran a local dispensary grow for years..
bottom line is total cost per gram.. including every penny spent.. I really don't know if we hit a gram per watt.. don't care..
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Yeah, but if youre figuring out a total cost per gram, then you pretty much would have to know the gram per watt? No? And thats an ACTUAL gram per watt, as in all power devoted to the grow, not just the light. Figuring out a G/W for a light is easy if you have the basic information.

Saying you "dont care" if you hit a gram per watt is a bit silly too, especially if youre commercial, considering maximizing returns is basically the whole point lol.

Really, I feel gram per watt is a great way to judge a grow, assuming you arent just talking about your lighting fixture.
 
HydoDan

HydoDan

Well-Known Member
Shugglet said:
Yeah, but if youre figuring out a total cost per gram, then you pretty much would have to know the gram per watt? No? And thats an ACTUAL gram per watt, as in all power devoted to the grow, not just the light. Figuring out a G/W for a light is easy if you have the basic information.

Saying you "dont care" if you hit a gram per watt is a bit silly too, especially if youre commercial, considering maximizing returns is basically the whole point lol.

Really, I feel gram per watt is a great way to judge a grow, assuming you arent just talking about your lighting fixture.
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And that is the problem, most people just count the light fixture and really don't know what it pulls..
My 400 watt hps pulls 460 watts for example.. So there is really no standard rules for measuring grams per watt.
If you run it like a business and keep track of all expenditures.. cost per gram.. Back then I didn't care.. Just make $$$
But now that I'm retired and growing in a tent I keep track of my grams per watt.. Just for fun!!
 
MediheaLed

MediheaLed

Well-Known Member
Thank you for all your inputs, any and all. Here's a little more info for those interested. Keep it ALL green!
2017-04-08-13-42-03.jpg HPS
2017-04-08-13-56-56.jpg COB
Please observe the Y-axis. Thank you.
 
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