Spider farmer SF-4000 appears to be a fire hazard.

ROCKTOTO said:

so what's the best led money can buy?

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In the USA

Skunkbudz said:

Honestly in my opinion the best led that money can buy is the one that makes you happiest. The one that does what it claims at a price you agree to. Not everything in China is garbage. Just like any other mfg anywhere else you get the quality you pay for. Quality control and attention to detail cost money.

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As I've said many times, the best light is the light that best fits your situation!

OSBuds said:

In the USA

Fohse: 7.19 lbs/light, 108g/sf: How The Grove Attained the Unbelievable

Mike Howard, former director of cultivation at The Grove in Nevada, shares the decisions and methods that enabled his team to achieve unbelievable results.

www.cannabisbusinesstimes.com

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That is a cool effing light. 1500w from the wall. Got-dam that's a lotta power for an LED light, but $3k? I think they take the cake for the most overpriced equipment on the market. Wow! Is there a Fohse lottery I can play? 5 year payment plan?

Probably made on a Monday or Friday maybe

One things for sure when Johnny says it Johnny means it

jonnynobody said:

Fohse LED A3i Commercial LED Grow Light

Save on the Fohse A3i LED Grow Light at GrowLight Heaven.

growlightheaven.com

That is a cool effing light. 1500w from the wall. Got-dam that's a lotta power for an LED light, but $3k? I think they take the cake for the most overpriced equipment on the market. Wow! Is there a Fohse lottery I can play? 5 year payment plan?

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I don't know, it will probably be a good investment for some but this is definitely not a tent light. A few things stand out for me:

As per the article, +7# yield, 108g/sf /1500w draw:
Each light has a 30ft foot print which pretty much means your grow style needs to be warehouse with lots of lights for cross lighting. Means around 100$ per foot in lighting. If their numbers are right then they are able to push 50w per SF with a +2g/w. 50w a foot is well into the area of diminishing returns, it's not easy to grow well with that intensity. If you don't have any power limitations but you are constrained to a certain space and currently averaging 3 ounce per foot (which is quite high) well then this might make sense: 40 g extra per foot at a cost of 100$ per foot, you could possibly make your money back over the first grow.

Question is how many 108g/sf harvest one can pull off in a row??


Edit actually I'm wrong on the form factor, this could fit into plenty places, just needs some height to cover well.

Rocket Soul said:

I don't know, it will probably be a good investment for some but this is definitely not a tent light. A few things stand out for me:

As per the article, +7# yield, 108g/sf /1500w draw:
Each light has a 30ft foot print which pretty much means your grow style needs to be warehouse with lots of lights for cross lighting. Means around 100$ per foot in lighting. If their numbers are right then they are able to push 50w per SF with a +2g/w. 50w a foot is well into the area of diminishing returns, it's not easy to grow well with that intensity. If you don't have any power limitations but you are constrained to a certain space and currently averaging 3 ounce per foot (which is quite high) well then this might make sense: 40 g extra per foot at a cost of 100$ per foot, you could possibly make your money back over the first grow.

Question is how many 108g/sf harvest one can pull off in a row??

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Beautifully said sir. There is only so much light plants can absorb before photosynthesis shuts down and damage occurs. It seems like the technology is at a point now where different manufacturer's can only separate themselves from one another by how they spread the light. Bar light versus quantum board. Multiple qb's spread on the same board (i.e. diablo). What's the difference? Not much. Most use the same components as their competitors. The only difference for the most part is the window dressing. Here's a good analogy. You can buy a pair of heavy duty thick denim jeans at any farm store (or walmart) for $20 or you can go to macy's and pay $60 for a pair or ralph lauren's. In both transactions you're gaining 1 pair of blue jeans. Nothing more. Nothing less. What's the difference? Not much other than how much you're getting screwed at the checkout counter.

Any time a manufacturer markets their lights guaranteeing X amount of weight per light is completely full of shit and I wouldn't even consider their lights a viable option because they're idiots right outta the gate marketing a grow light like that. It reminds me of advanced nutrient marketing. Lot's of fluff with little to no substance sold at a premium price wrapped in false promises and rainbows. Strain, garden design, veg time, and to a much larger degree, a grower's skill is what determines harvest weight. It's just false marketing designed to fool idiots into thinking they can buy their way into growing large harvests. There are lot's of people out there that are suckers for marketing like that, and that's why they still sell enough lights to stay in business. Idiots are the bread and butter of high profit margins in the world of business. As the saying goes, there's a sucker born every minute.

Black dog does the same thing. They promise 3# per light. Yeah, sure

IV had that yellow shit on some strips I got and they tried to say it was the way I ran them it's the guy on Alibaba rt2 he's a dick don't wanna replace the 3 strips that burnt out n he knows everything blah blah blah but I'm glad I didn't order those spider farmer leds

Chuckb86 said:

IV had that yellow shit on some strips I got and they tried to say it was the way I ran them it's the guy on Alibaba rt2 he's a dick don't wanna replace the 3 strips that burnt out n he knows everything blah blah blah but I'm glad I didn't order those spider farmer leds

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Fuck those companies that screw their customers and refuse to honor warranties for defective lights. Alibaba is a great source but much like sellers on ebay or amazon you need to be careful who you deal with or buy from. When it comes to making social or business contacts on the world wide inter web the rules of engagement are the same as they are in the real world. Avoid shady people / businesses. Buy from trusted sources. I lucked out buying from a vendor that nobody knew about or ever heard of. I've had nothing but an excellent experience. I wouldn't recommend others take the risk I did though Kingbrite or Meijiu are safe bets. Tons of growers can attest to their quality and performance.

Yea iv heard good things about king brite this r2t he's a douchebag bro the strips are ,$28 each and he can't replace 2 like come on well he lost a good customer

Are the osram chips 3030smd any good?

Rocket Soul said:

I don't know, it will probably be a good investment for some but this is definitely not a tent light. A few things stand out for me:

As per the article, +7# yield, 108g/sf /1500w draw:
Each light has a 30ft foot print which pretty much means your grow style needs to be warehouse with lots of lights for cross lighting. Means around 100$ per foot in lighting. If their numbers are right then they are able to push 50w per SF with a +2g/w. 50w a foot is well into the area of diminishing returns, it's not easy to grow well with that intensity. If you don't have any power limitations but you are constrained to a certain space and currently averaging 3 ounce per foot (which is quite high) well then this might make sense: 40 g extra per foot at a cost of 100$ per foot, you could possibly make your money back over the first grow.

Question is how many 108g/sf harvest one can pull off in a row??


Edit actually I'm wrong on the form factor, this could fit into plenty places, just needs some height to cover well.

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They also fail to mention how many shitty grows they had prior to getting their LEDs dialed in after pulling down the DE HPS.

thisbuds4u101 said:

Day 41 6 spider farmer sf 4000 I think they’re working okay.

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Hey buddy those plants look good I think you using 6 of those I found 2 for $550 one was new and the other was like new and I I'm hoping they work ok which I have a 8 strip light with same chips and driver well 2- hlg240 and I grew some awesome flower with dense buds once I get everything going I'll post pics up nice grow bro

I noticed the same yellow burn marks on my sf2000 after my first grow which finished in Jan 2021 (so the light is now less than a year old and I only actually used it for 3 months). At first I wasn't sure what it was so I googled it and came across your post. I'm still using it at 50% brightness because I don't have a replacement but looking to get a HLG next week. Anyone had experience with HLG?

"I think the message means during the manufacturing process chemicals get on the board and mix with glue, the person who wrote the article believed they were blaming him for spraying chemicals which I think was wrong, they offered 20 back I think as part of admitting they made a mistake manufacturing and it wont affect the use of the light"
-Taken from another forum on reddit.

I to have this showing up on a sf 2000 board, but the coloring is no where near the driver or the diode. If it was the diode don't you think you would see the yellowing grow from the diode from heat stress.
Like anything that gets to hot, the closest to the heat source is gonna be darker in color, but with this yellowing problem i actually think its a reaction with the glue, not sure what chemical, but it appears at random spots from what i can see that would have less heat there or probably none at all in some cases because its not erecting from the diode.

Let me know what you guys think about this theory lol
thanks

i just noticed as well that you got discoloring on the aluminum as well. Its totally a chemical reaction , heat wouldn't cause the aluminum to do that.
you can take a torch to aluminum and it wouldn't go splotchy like that.

Not sure if i can change your mind. I think its safe imo

brucelee510 said:

I noticed the same yellow burn marks on my sf2000 after my first grow which finished in Jan 2021 (so the light is now less than a year old and I only actually used it for 3 months). At first I wasn't sure what it was so I googled it and came across your post. I'm still using it at 50% brightness because I don't have a replacement but looking to get a HLG next week. Anyone had experience with HLG?

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Apples to oranges

jonnynobody said:

Just emailed spider farmer all the pictures along with some questions.

How often does this type of problem occur with your boards?
Would a replacement board be subject to the same failure?
What is the company doing to remedy this issue?

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I doubt you will even get a response.

Syntax747 said:

I doubt you will even get a response.

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OSBuds said:

Spider farmer SF-4000 appears to be a fire hazard.

Hello, spider farmer customer service here. Sorry for the late to reply, please do not worry, we will try best to solve your issue. Please DM us your order information (Order number from which platform) . Looking for your kindly reply. Thanks Hi, I sent my amazon invoice to your support rep...

www.rollitup.org

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Yep. I posted that response than realized there was 5 more pages of this conversation. My bad.