Which approach will win?

Hollatchaboy

Well-Known Member
Yeah I guess you're right but lighting seems to far outweigh any other electronic device associated with growing marijuana. Things like exhaust fans and Variacs just don't seem to matter as much as lighting...and most don't cost nearly as much to invest in....for the small grow op/personal use growers, anyway. I guess I'd invest in a ChilLED if I could afford to....But then I'd worry that next year, Samsung or Osram, Cree, etc. will come out with an even more perfect chip...Or Meanwell will create some new kind of super efficient driver that will obliterate the old models. Not to say that the old models won't continue to work just fine to grow the weed...I have a bunch of old tech, too and it works as well today as it did when everyone was going crazy over it years ago.
Now they are almost antiques! ;) But when I see a knockoff that has all the new cool chips and latest stuff for a fraction of what a ChilLED light goes for...and likely will grow weed every bit as well as the ChilLED, it's a real temptation to try one or two of them. So I probably will do just that. But I also remember several years ago, when the cheap knockoff lights were being put down pretty hard and people were being advised to avoid them and buy something of a higher quality. Remember those days? Seems like the knockoffs have upped their game since those days....?
Your plants can't read the brand label on the light. Some of the so called " Chinese knock off", perform pretty well. I think the issue comes down to customer service and warranties. Shipping is usually a pita also.
 

Hollatchaboy

Well-Known Member
Why should Chinese lights last less than the US name brands? They both use the same Samsung diodes and Meanwell drivers. The rest is just simple electronics.

I liken the LED market right now to the personal computer market in the late 90's. Not long after you bought your first computer it was becoming outdated with newer models. I would not spend a ton of money on LED lights right now because the high efficiency high CRI lights you buy today will feel outdated in a couple years with even better efficiency and performance.
I think it might also depend on who puts the chips on the boards
 

sf_frankie

Well-Known Member
Your plants can't read the brand label on the light. Some of the so called " Chinese knock off", perform pretty well. I think the issue comes down to customer service and warranties. Shipping is usually a pita also.
Shipping was not any different than ordering domestic. They handle all the customs and import fees. Returns and warranty do suck though. They sent me the wrong spec lights and exchanging them would have been a PITA so I settled for a partial refund. Still happy with my purchase and my plants can't even spell Gavita so I don't think they care.
 

cobshopgrow

Well-Known Member
btw. can someone link to the comparsion of migro were speaking of?

one thing shouldnt be forgotten when talking about more light.

"It is common to hear that “more light is better” and since many home growers use insufficient lighting for their space, it is often true. However, there is a limit to the density of photons (PPFD) that cannabis plants can use. If plants are exposed to a higher density of photons than they can use in photosynthesis, it will not increase yield. In fact, when PPFD is too high, it can reduce both the yield and the quality of the harvested cannabis. "

"The data from Chandra et al. confirm that the optimal photon density for peak cannabis photosynthesis is between 500 and 700 µmol/m2 (PPFD). It also shows that we should avoid going over 1000 µmol/m2 (PPFD) which could lead to damage. With artificial lighting, the distribution of light is never perfect. Therefore, we want to ensure that all areas of the canopy get at least 500 µmol/m2 (PPFD) and that no spot receives more than 1000 µmol/m2 (PPFD). We recommend an average of 700 µmol/m2 (PPFD). With most grow lights, an average of 700 will ensure that you stay within the optimal range for peak photosynthesis in all regions of the canopy. "

the best spread btw you get with DIY and very likely not with a gavita in a tent setup.
 

sf_frankie

Well-Known Member
I see you’ve deleted all your past comments, any reason why?
Because he knows he's full of shit and got called out. Same as the rest of the "expert" growers on here. A few weeks ago I caught some idiot posting images of "his grow" pulled straight from google. Lying for clout from strangers on the internet is so pathetic its almost sad.
 

sf_frankie

Well-Known Member
the best spread btw you get with DIY and very likely not with a gavita in a tent setup.
Most DIY lights are modeled after the gavita 1700e design, the spread is as good as it gets. Technically you could improve on it with DIY but spread really isn't the issue.
 

cobshopgrow

Well-Known Member
Most DIY lights are modeled after the gavita 1700e design, the spread is as good as it gets. Technically you could improve on it with DIY but spread really isn't the issue.
i mean the gavita 1700e was released may 2020, think a lot similar designs where out there allready.
but youre right, spread isnt a problem of the 1700e (while it could be done better, if you go mad on led count), was more thinking of the
Gavita CT 1930e

and if gunni is just growing in a 5x5 space it could make sense to simply use a 5x5 tent for it and be a happy little tent grower.
to each his own, but the fertilizer analogy is somehow true.
these days we can easily give too much light as we can do with fertilizer, so a 20% more in light doesnt mean 20% more return, even when youre using co2.
beside that i dont see the 20%, i see a difference of about 10% for different lm301b or h batches max, rest is more drive current and spread related.
 

sf_frankie

Well-Known Member
i mean the gavita 1700e was released may 2020, think a lot similar designs where out there allready.
but youre right, spread isnt a problem of the 1700e (while it could be done better, if you go mad on led count), was more thinking of the
Gavita CT 1930e

and if gunni is just growing in a 5x5 space it could make sense to simply use a 5x5 tent for it and be a happy little tent grower.
to each his own, but the fertilizer analogy is somehow true.
these days we can easily give too much light as we can do with fertilizer, so a 20% more in light doesnt mean 20% more return, even when youre using co2.
Yeah, I think fluence may have been the first big company to do the bar style lights. Either way, at the time those were the latest and greatest. And yeah, the LED count on the 1700 is kind of underwhelming. My Chinese lights have 3x as many diodes as do a lot of others. With DIY you can go ham. You can also build a crazy frame that hits your canopy with light from different angles.

Lets be real here, he doesn't have a 5x5 space. And too much of anything can be bad, not just lights or Fert.
 

cobshopgrow

Well-Known Member
right, lights, ferts, water to list one more.
wait, too much soil, too big pots i never heard of (as long watered well).
 

PJ Diaz

Well-Known Member
Shipping was not any different than ordering domestic. They handle all the customs and import fees. Returns and warranty do suck though. They sent me the wrong spec lights and exchanging them would have been a PITA so I settled for a partial refund.
Honestly that's one of the main reasons I ordered my lights domestically.
 

sf_frankie

Well-Known Member
Honestly that's one of the main reasons I ordered my lights domestically.
There are some Alibaba vendors that have US based warehouses. A friend recently ordered some and got them in under a week with cheap shipping. Still paid Alibaba prices too.
 

PJ Diaz

Well-Known Member
There are some Alibaba vendors that have US based warehouses. A friend recently ordered some and got them in under a week with cheap shipping. Still paid Alibaba prices too.
You're still faced with tricky warranties and return policies. I do also like to support US labor, which is a big part of the reason I chose HLG boards printed in the US.
 

OneHitDone

Well-Known Member
You're still faced with tricky warranties and return policies. I do also like to support US labor, which is a big part of the reason I chose HLG boards printed in the US.
Clever wording. I assume your referring to the sticker on the QB's that aren't produced by Samsung?
I agree on supporting US labor - even if it is primarily assembly, packaging, shipping, and management of inventory and warranty :peace:
 
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