Thanks dude.

Like that Maxisun company that uses the Lm281b

@@TroyannosaurusRex vivosun has 301h but no UV

Haha thank you

@@LEDGardener can you explain what percent the light is at for these readings?

Always full power. If you want to know what it is at half power, etc., you can multiply by .5 and be damn close. I started out measuring multiple power levels but found the results were so predictable there was no point.

Thanks! I’m working on those links actually. Great minds... hahaha

So how much better is it?

Nice I am going to order one for my new 4x4 Electric Sky is on a 3 month back order so Spider farmer it is!! Did you get the updated version on Amazon??

@@TitleTownStacker yea they have the title listed as the 2021 model they havent updated pictures or anything just the title on amazon that i seen. when i got it i was a bit sceptic but i had contacted spider farmer they said it was the new 2021 version should be better for seedling and clones and overall better the center par is lower and more spread. I dont have a good par meter to test, just been using cellphone and lux conversion and it seems to drop more consistent from center to edge or corner compared to testing seen in this video. still nice to see spider farmer taking feedback and making improvements im happy with the light. went from a 2x4 with sf-2000 to this sf4000 in a 4x4.

Nice. I have another HA video that’s about 80% done that I’ll be finishing and sharing this week.

I'm sure you've already solved this problem but I just wanted to tell you my set up in my vivosun 5x5.. I have 4 leds.. 2 sunrise bar2400, 1 bloomplus xp3000 and one bestva 100w.. for a total of 880w led. I grew 7 plants and did amazing.. you get better coverage with multiple lights..

Hey thanks. What are you looking at?

Looking for a good light for my 2x4 that I can seamlessly move into 2.5 x 5 tent eventually

Thanks for watching

What did you do? I’m thinking of doing this same thing, 2 sf4000 in a 5x5 Any update is much appreciated

Considering the fact that even a sub par grower should be able to pull close to a gram a watt…… I would hope you’d recoup investment plus quite a bit more with grams going for an average of $10 a piece. You should’ve gotten 3x your money…. Minimum. If not you’ll need to do some extra research and get your growing skills up lol

@@nickspeakstruth133 Are you trolling on a year old comment? I mention I’m a happy customer with a light that paid for all my equipment and supplies in one harvest, and you spring into action? You think this is where your services are needed? You thought, “the World needs and cares to hear what I say”

@@WorthyBuzz correct, because they should have realistic expectations. A gram a watt is not at all a “good” grower by any means. So using that as a base starting point is a good measure. It’s not really the “best bang for the buck” though tbh because those who buy cheap, buy twice. Poor man pays twice, rich man pays once. Better to spring for higher quality lights and get the 2.5 grams a watt, then get UV/IR bars and run those to get an extra 6-8% thc levels in the last 2 weeks of flowering. Age of comment is irrelevant because you mentioned nothing that was time specific, neither did my response. You also were so triggered by a simple observation that you responded within the hour to an “old comment thread”, so I fail to see any relevant point in your attempted cop out. Fact of the matter is, you get what you pay for. I’ve purchased an sf4000 before and for a beginner with no experience in a 3x3 it would be a great light. This thing doesn’t even hardly have the footprint to cover a 4x4 the way they say it will and that’s extremely obvious based on these data sets provided in the video. Even the corner foot around it is struggling. If people want “dense and terpy” colas as you suggest are what this light gives, they’d be shocked to see the density of colas from a better light, all I’m saying. They could still achieve that with a 3x3 tent rather than a 4x4 though too if they were dead set on this light, plus they’re cheaper. You’re welcome for the free advice from a person that knows a thing or two because he’s seen a thing or two.

@@nickspeakstruth133 yeah... ummm... If you felt this strongly about spider farmer being cheap "poor man's" gear.. then why the hell are you watching a review video about one of their products? I am a new grower and to be honest I'm looking at this fixture because all the "poor man" companies like Viparspectra, Mars Hydro and Spider Farmer are producing results with current growers showcasing their usage. With all of your sage wisdom and expensive gear.. do you have any grow series up? Nope but Hygro hydro, Inside Hydro and Grow to Learn and 2x2 tent grower are killing the game and teaching with what you call poor man's gear. So as a new grower, unless you can show and teach with a KZfaq channel of your own, keep the free advice to yourself.

You use grow and micro wut kind of juice do you use

@@michaelmoreno4133 yellow bottle 2 part A an B

Vreat idea, how would hand them all

Bloomspect and MarsHydro are made by the same company btw

thats good. lol

I had the dimmer circuit disabled so it was running at 100%.

My sf400 at 100% runs at double that heat... 😱

I agree I was hoping for a good cost savings power / distance recommendation...- I'm now thinking of keeping my girls in smaller pots within my 4x4 tent within 2x2 area @ 12" @ 20% And see how they do.. my lil girls are in 9-5 gallon bags already so I'm thinking to just go with 24" with same 20% and after a week increase power in increments every week up to 50% and see how that works..🤷🏽‍♂️

You can its called find a better manufacturer lol my Volt Fl-1 better than all these

@@TRUMP4PRISON2024 in veg you can pretty much run these at 50-75%, and I would not recommend goin lower than 18-20", seems to mess up the coverage.

You can veg with theese at 20 % 60cm height lol i got 3 of theese and their pretty good 🙂

Yes full blast.

That would ruin the efficiency lol.. why have a 400w light with two 75w power wasting t5s

I just bought a sf2000 to go along with my sf4000 for my 5x5. Hopefully I get great results. I'm still confused on how low I should hang my lights during flowering

@@yeahwhatever429 how did it work out for you?

It likely would be.

@@LEDGardener Thanks, adjusted to 23" seems to be working out as best as can be expected.

I suspect you’re right

@@LEDGardener by the way what a great led review channel I will be watching and sharing keep up the great work mate and if you could do a test with 2x Sf200 in a 4ft x 4ft that would be epic

I think I will have a 350R soon... I’ll see what I can do!

@@LEDGardener Awesome, brother, I look forward to seeing the review as that light looks sweet ! Have a Great Christmas and hopefully a better 2021 :))

so did you purchase them? if not what did you purhase? I have two sf4000s and did 1 grow and it was great, was going to buy 2-4 more.

@@Impossibly-Possible There are more efficient solutions now, but there's nothing wrong with these boards, except it's tricky to get a good coverage in a 5x5. If you put two SF-4000s in it, GREAT but you could cover the same area with 3 SF-2000s and in each case you will only cover a 5x4 area well because the boards are simply not long enough.

@@Impossibly-Possible Same. I bought two of these for a flowering room of 10x 10. They do pretty good.

Just have to figure out how to get my hands on one

@@LEDGardener ​ @LED Gardener if you contact them they might be willing to loan you one. They were extremely helpful and willing to work with me when I talked to them

On 20 plant i got 2x Spider farmer sf4000 and 2x Mars hydro ts1000 and my girls are happy

Depends on how big you grow your plants

I have one now, let me tell you, its on point 👌

JCVS2626 it’s a baby light tho. 600R. 650R 🇺🇸🇺🇸🇺🇸👍🏼

600R. Don’t fuck around 👌🏼

@@muthrfuqrjonz3530 its in a 2x4 lol 650R will go in 4x4.

@@muthrfuqrjonz3530 650R superior to 600R big time.

200 IQ play!

@@LEDGardener probably not so good for the warranty lol

Hope you make a video so after warranty is over I can do it.

@@TRUMP4PRISON2024 I used an angle grinder with a thin cut off wheel made for metal.

So whats the newest standard LED than?

@@mmenil1 lm301h gives you 3.10 μmol/J @ 65 mA. lm301b gives you 2.92 μmol/J @ 65 mA.

@@mjlourens565 Check out actual specifications from SAMSUNG, there is no difference. I have seen them and I have heard from actual partners from SAMSUNG who I buy LED's and LED strips. They are exactly the same, literally.

@@mmenil1 One has a b and one has a h - that makes them not the same, literally.

Yup it’ll do well in a 4x4 full cycle

This will be my first grow..

Where did u buy it?I'm trying to find too

@@givemeabreak8946 Amazon..has them

@@edwinfierros3324 it says currently unavailable to me mate.Should I trust eBay?

Have you tried?

sure it does

Agreed, especially if targeting a 5x5. I'm sure the increased cost of upsizing the heat sink, and the resulting increased shipping costs, etc. are also factored into their equation to be able to sell the unit cheap enough though.

Why you say that? Just asking

@@tilamz6 I was upset with them lying about efficacy numbers and just plain dishonesty about their product they have since then attempted to make things right. Currently in the process

I’m killing it with sf4000 in my 4x4! 24.7 oz. great light imo

Please explain?

Why are they trash? I’m new to this. Spider has best reviews