nice ok looks like ill have to do sim research on that tn...any threads with actual results grams per watt?
5×5 with sf4000?
- Thread starter unc_d420
- Start date
TreeFarmerCharlie
Well-Known Member
I haven’t seen any, but I honestly don’t worry too much about that, because the diodes on those strips are the same diodes used on the HLG550, and mine will have more of them. All I would need to make it be socially the same as the HLG-550-RSpec is a strip of Deep Red LED 660nm diodes.
Airwalker16
Well-Known Member
Spider Farmers have reds...
TreeFarmerCharlie
Well-Known Member
They sell Deep Red LED 660nm strips?
Barristan Whitebeard
Well-Known Member
Hey man, the F series strips use LM561C diodes which were the same diodes used on the HLG 550 V1. LM561C have been out since early 2016, and they're obviously effective diodes for our application, even today.
The HLG 550 V2 was made with LM301B and then LM301H diodes.
The HLG 550 V2 Rspec is made with LM301H(originally LM301B) and Osram SSL(according to HLG's website) 660 nm Deep red diodes(although I have heard it said on here that the deep red diodes are actually the newer more efficient Osram square).
TreeFarmerCharlie
Well-Known Member
Thanks for the correction, I forgot those were the diodes used on the V1. Would adding the deep reds make a big difference ?
Barristan Whitebeard
Well-Known Member
Yes the deep red is effective and will enhance the spectrum(especially useful with your 80 CRI strips considering they have less deep and far red than a higher CRI offering).
In addition to using deep red, you can also add far red on a separate timer. You can run the far reds with your main lights, especially during less stretch-prone periods to promote the Emerson Effect(deep and far red synergy). You can also use the far red for EOD treatment at lights off.
Airwalker16
Well-Known Member
Not separate boards/strips, the reds are already on the board.
these are way out of budget. i was already pushin it with the sf4000. hopin i can find a cheaper but as good solutionThese are more expensive, but I think you'll have better results if your budget can handle it. Look at the drop off in light intensity as you move out from the center.
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There are a number of other like these including some Chinese knock offs
not heart set on spider just seemed like a good enuff and better option then blurple. that being said, according to the sf ratings the sf4000 pulls 450w, 4 of the sf1000 is only 400w, u say i need atleast 750w...i dont know if its coreect but i was goin for 35-40 watts per square foot cuz i read thats optimal, is it not? cuz that puts me closer to 900w but either way the 1 sf4000 or the 4 sf1000 still dont even meet the 750w u suggest...can u clear this up for me..sorry if askin dumb question just wana ger this right the first time...
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Airwalker16
Well-Known Member
i assume these are the cheaper chinese knockoffs...still as good tho or not worth it?
how do u feel about the HLG 550 V2 Rspec in the 5×5 for flower..says its good for it but only drawing 480 no where near 35-40w per sqft i think is needed. thoughts?
christopher jordan
Well-Known Member
You can check Alibaba. Spider farm 4000's are $270 delivered.
Airwalker16
Well-Known Member
Link pwease?
i was thinkin the same
Rocket Soul
Well-Known Member
With a 5x5 the tent is so big that in order to have even lightlevels its best to shoot for a light for each corner. There are plenty of alternatives, id probably go for a knock off setup rather than spiderfarmer: better bang for your buck and if the led board breaks down youll have an easier time replacing it. Sf2000 came out as 299 $ on the first site i checked: ok it comes with warranty but usually to replace a broken board its really only 30ish$ and shipping: the extra is not worth it when the china kits are around 150$ iirc.
My suggestion is any 4 china 2board setups without any drivers. Its better to buy drivers locally: meanwell hlg drivers are 7 years of warranty and i feel you might actually need that rather than a send back to china warranty. You can get 200w drivers or 240s for a bit of extra punch.
Rocket Soul
Well-Known Member
In that case you should try for several smaller, like maybe 5 single board kits, corners and middle. I like hlgs good performance, especially if youre in the us for service, its just 4 boards so close together is not ideal, gives a hotspot in the middle and weak in corners just like a single sf4000.
yea i deff understand the benefits of mulitple boards, fits my thoughts exactly, i was actually surprised to see ppl useing just one light. im dedf gonna go with multple boards just not sure of which yet and exactly wat wattage i should be aimig for....is 875-900w overkill or spot on?
Rocket Soul
Well-Known Member
Ideally i would use 4 double board configs trying to cover the 3x2 of each corner in a 5x5. The middle squarefoot is lit by cross lighting. Youre probably best off with 240 drivers and dimming them slightly, but having that bit of extra power if you ever needed it. You should be fine with 800w but q little more wont hurt.