CraZysWeeD
Well-Known Member
Yeah, nice to see others trying them out. Mine have lasted almost 60 days now so maybe a new record then. =)
6040-F2525 A1 COB: Legit or cheap knockoff?
- Thread starter JGibs420
- Start date
Hey Crazysweed, glad to hear your still running. I just got 12 cobs, still waiting on the others. Man these things are bright! Hope to have it all together soon, but I'm also waiting on some other parts. Take care man.
CraZysWeeD
Well-Known Member
Sounds great! It's going to be fun to compare results. Looking forward to your build! Take care u2...
I have to wonder why they are so cheap. They should be a huge improvement over CFLs.
I sprung for 8 Citizen CLU048 C1216s, and the drivers, pin heatsinks etc. They cost $393.82 USD + $115 USD delivery from China. I've budgeted another $250 for improvements as I can afford them.
Your solution is quite a bit cheaper, and I'm very interested in seeing the results of your grows.
Mayne
Well-Known Member
Hi all. Had a play with these cobs a few months ago. These are the setups i built to try them out.
Hey man, awesome you posted notes on these, I was curious awhile back.
CraZysWeeD
Well-Known Member
I'm surprised my self what they have accomplished with this light. But i think they generate alot of extra heat in the growspace with the onboard drivers.
The usual Chinese quality, I assume. If I remember correctly, manufacturers typically sort by quality, and they don't toss the rejects into the nearest dumpster - they sell them to entities in the PRC, lol. Seems like someone has already mentioned product failures. And (lack of) efficiency might be a factor.
A lot of Chinese products... It seems like we're paying them for the privilege of being able to throw the stuff in our trash cans instead of theirs
. Which is ironic, if you think about it, since they no longer want our... "recyclables." These might not be that bad - but one certainly gets what one pays for (and that is on a good day).Still... I have thought about buying a couple to play with, when my ship comes in. (I once bought a shiny thing from a gumball machine when I was a little kid, too
.)
China has been working at improving it's products. My emergency generator was designed by German engineers, and built in China with Japanese bearings. It has lasted 23 years, and is still going strong. I deal in motor kits for bicycles. They come with a 90 day factory warranty. The factory has always replaced any faulty parts without question. The manufacture of these kits is to American quality control standards.
It's fair to say that some Chinese factories are not up to the required standards, but most are. Many international companies have factories in China, to take advantage of their lower wages. They include Apple, Samsung, Citizen, and Mean Well, among other well known brands sold in North America and Europe.
It's fair to say that some Chinese factories are not up to the required standards, but most are. Many international companies have factories in China, to take advantage of their lower wages. They include Apple, Samsung, Citizen, and Mean Well, among other well known brands sold in North America and Europe.
CraZysWeeD
Well-Known Member
Very interesting link, i like the guys choice of screws to tighten down the cobs with. He couldn't find screws from the same century? 
)
I wonder witch part of the world will led the next evolution in our quest for consumption. Africa?
)I wonder witch part of the world will led the next evolution in our quest for consumption. Africa?
Very interesting link, i like the guys choice of screws to tighten down the cobs with. He couldn't find screws from the same century?
I did a bunch of reading of various articles on his web page. That seems to be in line with his particular mental issues (not trying to be insulting, lol, most all of us have some kind of mental issue - I know I do - and most of them are not anywhere close to being an actual mental illness (for lack of a better term)). I liked a lot of the how-to / projects articles, BtW. The one about converting a chest freezer into a refrigerator for a significant savings in energy use was a real eye-opener. Lots of great information in those. The "solve every problem with today's food industry by ignoring evolution and become a vegan," attitude, though... not so much. Yes, he is correct about things such as growth hormones (et cetera) being found in meat and toxins in fish. <SCRATCHES HEAD> But him choosing to stop consuming meat because of stuff like that isn't a solution - it's burying one's head in the sand, IMHO. Far better (again, "IMHO") would be to help people understand that they can do a lot towards ending such issues by making informed decisions when spending their money on food, to stop supporting entities that pollute (because to do otherwise is to give them both tacit approval and more money that they're obviously NOT spending on anti-pollution measures), et cetera. And the bit about the population increasing to the point where there won't BE enough meat to be a part of a person's diet, while true, would be better served by figuring out a way to convince people to stop looking at the act of producing a child as just a couple hours' entertainment, a means to get a raise if one is being supported by us (welfare), or both. FFS! I mean... Just feeding the people is only a small part of the whole overpopulation issue. But I'm both ranting and rambling.
BtW... 94 watts power consumption for a 70-watt COB. Which still produces a boatload of heat, lol. And, as everything is on what amounts to one component, one cannot easily remove a big chunk of heat by placing everything other than the part that actually makes the light outside of the grow room. (Even with many CFL bulbs, it is possible to separate the "bulb" from the electronic ballast components, if one is sufficiently determined.) I entered this thread hoping to find some kind of super-efficient and super cheap lighting solution that would also have a pretty low failure rate (yes, I know, lol, just a wee bit naive of me, huh?). Now... I don't think I'll be selling the Lumatek setup this year for grow room supply money after all. Which is not to say that LED technology is not a viable grow lighting option. It's just still evolving, is certainly not all that many advertisers would like us to believe... and one cannot expect to get top-shelf products when digging under the bottom of the barrel.
Obviously, most all of the preceding comments are strictly my opinion - and should be taken as such. After all is said and done, I find that I am still interested in these things. I've been thinking that I need to build a small "box" to host a half dozen or so "micro mother" plants, and if I do, I will require some relatively "mild" lighting. And I will NEED it to
. Also - and this was a surprise - I could not see the little LEDs that probably are the bulb's source of illumination, ergo I have no way of knowing whether they are all pointed downwards (in a base-up installation) or are pointed in different directions to make the bulb more useful as a general area light. So... IDK, lol.
Mayne
Well-Known Member
CraZysWeeD
Well-Known Member
Hmm... im not going deeper in to this. Sorry.
CraZysWeeD
Well-Known Member
Ok so it's weekend again. Here comes some pics of the growth have been feeding them pk 13/14 this week so today is flush day. They are now 72 days old.
Nice looking plants. I predict you'll be very happy in a few (+?) weeks when they're ready to harvest.
CraZysWeeD
Well-Known Member
I think so too... =)
CraZysWeeD
Well-Known Member
Both of my plant suppose to have the same genetics. It's the first time i topp a plant. Now i can clearly see the benefit of topping. But how does it come the topped one yield more? Everything else is the same. It's going to be fun to see the dry weight difference.
They may be a bit smaller, but you get more colas, and a bigger yield.
Depending on the strain, you could see multiple phenotypes from the same pack of seeds (even if each one of them were originally harvested from the same plant). If both of your plants are clones from the same mom, they should be the same (or very nearly so).
Did it hurt?
Well... Some folks hold that it may or may not. Like so much else, it depends on variables. Is it a strain (/phenotype) that is known for not branching out much on its own? Does it - even if the previous answer is, "Yes," concentrate the vast majority of its growth as one main cola with not a lot of significant growth/flowers on any secondary branches? Have you not been doing any "training" work on the un-topped one?
Then the topped one will probably yield more. Or possibly yield somewhere in the same neighborhood, but produce a lot more (but smaller) buds. More variables, sort of, but plants seem to have a bit of a "limit." By that, I mean the amount of light-energy, nutrients, et cetera can - all together - define a bit of an upper limit to the plant's production. IF one of those things is the limiting factor, then causing a plant to branch more will tend to give the grower more buds but smaller ones, unless/until that grower attends to the limiting factor.
Although topping can often facilitate higher harvest numbers, generally speaking.
It is really just a quick & dirty (and mildly destructive) method of training one's plants. Remove the top, and there are is no longer one main branch where the greatest percentage of whichever plant auxin (hormone) it is that causes "main growth" - so the remaining branches tend to grow at the same rate.
The grower can do the same thing, with most strains, by tying that top branch down in such a way that the tip is now lower than any other branches. This causes the plant to redistribute that same auxin from that main branch tip... to whichever ones that are now highest.
This is a basic light-seeking strategy (light, in nature, generally coming from ^^^up there^^^, lol) - and is certainly NOT limited to cannabis plants.
Tying that (soon to be former) primary branch tip down instead of removing it has the benefit of, well, not removing it (therefore, it is still a productive part of the plant). One can experiment a bit, if one likes. Tie the primary branch so that it is at the same height as the others? Tie it lower than that? Tie it to a ring screwed into the floor, lol? Just cut the thing off (and root it, then place it in its own pot beside "mom," perhaps)? Et cetera.
Rinse/lather/repeat for each strain/phenotype you grow to see which training method works best for each one. For you. Then change some variable or other and see if - and, if so, how - that change affects everything else.
I should mention that the basic growing style is a BIG factor in "will topping this plant add, reduce, or not significantly change one's yield?" If you're doing a 96-plant SOG, then topping them would be contraindicated
. If you are doing a true SCROG (in the classic definition of the term), then topping may or may not increase yield. If you are doing a modified SCROG - anywhere from "nearly the exact classic SCROG model" to "it turns out that the screen ended up just being a support mechanism, really," then flip a coin (too many variables to guess at, including - but not limited to - number of plants, total vegetative growth phase time, etc.).That definitely helps, yes
.
CraZysWeeD
Well-Known Member
I get your points both of you. In this case as I just look at the plants. The one that's topped seem to have 6(!?) main colas and the "normal" one main which is as big as the smaller of the six on the other. Did that make any sense? =)
PS. It didn't hurt a bit, so i did it again on four other. DS.
PS. It didn't hurt a bit, so i did it again on four other.
DS.