Fordprefect42
Well-Known Member
Cool thanks for the clarification.
Light opinion sf-2000
- Thread starter Fordprefect42
- Start date
Fordprefect42
Well-Known Member
This is the one I was looking at. I have a tendency to make dumb mistakes.
Skewbong
Well-Known Member
HAHAHA, I DO THEM TOO, NO WORRIES!!!
just don't want to see a fellow grower duped into buying something based on marketing.
to be honest, when i compared Mars, SF, and HLG; they were all very close when comparing apples to apples, just slight differences in cost, wattage's and efficiencies.
most reviews i watched on you tube; people were very happy with ANY of the 3 brands. go to you tube and type in "Mars Hydro TS"....hundreds of grows, comparisons to SF's and HLGs against the Mars TS series lights with full reviews. check out Bill Ward...hes got some pretty epic grows with 100 watt Mars lights. peace bro, hope you find one you love.
Rocket Soul
Well-Known Member
This is a dumb misstake, im sorry...
Bad spread, bad thermal management, not a great company. For another 70$ you can do something better.
Its true you will see similar results to hlg when you start. But the mars wont last. Never have, never will.
The amount of heatsinking on the mars and the unknown "smd" diodes are dead giveaways. Also just one point of light, instead off 4-6.
There are really expensive hlg gear which isnt worth it. Qb96 is worth it, especially on this discount. And also you get a company that backs up their product. Please check out mars hydro threads and compare it to the hlg quantum board thread and see what engagement is like. Compare the hundreds of pages of happy and discerning customers to maybe just a few posts of newbs being happy theey coulld get a cheap led.
If you go for it use RIU10 discount code for 10% off.
Rocket Soul
Well-Known Member
Maybe yiu have a link? Usually the amazon lights tend to be crappy.
Barristan Whitebeard
Well-Known Member
That 1095 figure may be the fixtures Total PPF output. LED Grow lights Depot lists the total PPF at 1035 μmol/second with a system efficacy of 2.1-2.35 μmol/joule.
Which spider Farmer light are you referring to, the SF-4000? Spider Farmer lists a "par value" of 1217 μmol/second which I think is the lights PPF output (PPF of 1217/457watts on 120 VAC=2.66 μmol/joule system efficacy). Spider Farmer lists system efficacy as 2.7 μmol/joule for their board lights.
Mars Hydro TS 3000
450 watts; 4x4 for flower; Efficacy: Up to 2.7 umol/j; Light output: 1210 umol/s; Full spectrum. Free shipping and no tax. Order today!
www.ledgrowlightsdepot.com
New Version SF4000 LED Grow Light | Spider Farmer Official
2024 new version Spider Farmer SF4000 LED grow light is equipped with Samsung LM301H EVO diodes and adds additional red and blue light, yields up to 2.5g/w
www.spider-farmer.com
Rocket Soul
Well-Known Member
The mars efficacy might be ffair, up to 2.3, but i call bullshit on sf, and so does most people i know who have made real tests of this sort.That 1095 figure may be the fixtures Total PPF output. LED Grow lights Depot lists the total PPF at 1035 μmol/second with a system efficacy of 2.1-2.35 μmol/joule.
Which spider Farmer light are you referring to, the SF-4000? Spider Farmer lists a "par value" of 1217 μmol/second which I think is the lights PPF output (PPF of 1217/457watts on 120 VAC=2.66 μmol/joule system efficacy). Spider Farmer lists system efficacy as 2.7 μmol/joule for their board lights.
Mars Hydro TS 3000
450 watts; 4x4 for flower; Efficacy: Up to 2.7 umol/j; Light output: 1210 umol/s; Full spectrum. Free shipping and no tax. Order today!
New Version SF4000 LED Grow Light | Spider Farmer Official
2024 new version Spider Farmer SF4000 LED grow light is equipped with Samsung LM301H EVO diodes and adds additional red and blue light, yields up to 2.5g/w
The hlg diablo has twice the diodes, a more efficient driver, and handpicking the best samsung diodes; they score 2.81 in verifiable tests. If sf really had highestt flux, lowest voltage bin and half the diodes they would clock in soomewhere around 2.5 -2.6 in system efficiency just by extrapolating from hlg. And i doubt they actually have those best bin diodes.
And in any case: both fixtures lack the spread that 6 points of light would give.
4x sf1000 would be a better buy.
Barristan Whitebeard
Well-Known Member
Agreed for sure about the efficacy figures.
One downside of the SF-1000, AFAIK the boards only have 218 diodes each. The higher wattage models use boards with 303 diodes.
Barristan Whitebeard
Well-Known Member
I would avoid that light, you can definitely find something else that's higher quality and a better value.
All they say about the diodes used is Samsung 2835. They probably use LM281B+.
LM561C (5630 footprint) and the newer LM301B/H (3030 footprint) diodes are both significantly more efficient.
Bosgrower
Well-Known Member
This popped up on another thread here and I thought it looked like something to consider for a 5x5
Comparative Analysis of Leading Brands – Mammoth Lighting
Mammoth lights deliver the most intense light at the most competitive price. Below, please find a grid analysis so you can make an informed decision. Some manufacturers do not provide all data. No PPF....what are you hiding? Spending $700+ is a big purchase and we try to be very transparent...
mammothlighting.com
Rocket Soul
Well-Known Member
Instead of looking for lights on amazon, look for lights on riu, and then check if you can get them on amazon if that is what you want. Almost all lights that appear on amazon are more or less crappy.
Rocket Soul
Well-Known Member
Great company, but a lot of $$. This light concentrate light to the centre right underneath so needs loads of hanging height. Better more points of light spread out, qb96 as per previouss advice aabove. Diy something similar with better spread for half the price.
QB96 Elite V2 Engine
QB96 Elite V2 is a white LED Board with boosted red spectrum. Each Board is powered by 64 high power white LED, 16 630nm Red LED and 16 660nm Deep Red LED.
horticulturelightinggroup.com
Rocket Soul
Well-Known Member
Also, another point to make on claimed efficacies: these are a strong selling point and if done by a reputable testing company the results are also published on that companys web: if youve done reliable tests then why dont you advertise the link to the results? This would be a super advertising point so why no links to verifiable tests?
I think most of these ppf/w with no real documentation are simply board level extrapolation from datasheet at best, most of the time done sloppy using 6500K details as thats the most efficient spectrum but never the one in a grow light.
I trust our sponsored advertisers (well maybe not mars but they arent claiming out of this world numbers) since we work to keep them honest.
I think most of these ppf/w with no real documentation are simply board level extrapolation from datasheet at best, most of the time done sloppy using 6500K details as thats the most efficient spectrum but never the one in a grow light.
I trust our sponsored advertisers (well maybe not mars but they arent claiming out of this world numbers) since we work to keep them honest.
coreywebster
Well-Known Member
The days of DIY requiring much effort are behind us. Its almost like lego these days.
I would listen to Rocket, its a very good option, it may seem daunting but trust me its simple and will give you a high performance light for a reasonable budget.
PadawanWarrior
Well-Known Member
260W QB® V2 Rspec LED Kit
Ultra High Efficiency LED Boards for DIY. QB288 has 288pcs Samsung 301H or 561C LED
horticulturelightinggroup.com
And use promo code "RIU10" for 10% more off. I'm not advertising, but I love mine, and am just sharing my own experience.
PadawanWarrior
Well-Known Member
I know I've been tempted to buy a couple of those just for the hell of it, but I really don't need to buy anymore lights right now. I went a little crazy when the V1's were on sale, and still in stock. Those QB96's would be like $62 a piece after the promo code. I gotta stop thinking about it, or I'll wind up buying even more lights I don't really need, lol.Great company, but a lot of $$. This light concentrate light to the centre right underneath so needs loads of hanging height. Better more points of light spread out, qb96 as per previouss advice aabove. Diy something similar with better spread for half the price.
QB96 Elite V2 Engine
QB96 Elite V2 is a white LED Board with boosted red spectrum. Each Board is powered by 64 high power white LED, 16 630nm Red LED and 16 660nm Deep Red LED.