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Is it possible to put an sf1000d and an sf1000 together in a 60x60x180?
BunnyBudstarted grow question 2mo ago
I currently have a Spider Farmer sf1000d (non-dimmable) measuring 60x60x180 cm. I wanted to add a sf1000 (dimmable) to it because I noticed that with just the sf1000d they grow small. What do you think? This photo is with just the sf1000d and a BPP autoflowering.
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Enochiananswered grow question 2mo ago
Go for it!. I have same light SF1000D and similar tent. My girls were not doing as well as they could have so I put a TS600 in there as well. (Neither are dimmable.) Temps and humidity were a bit of a battle (VPD) but after much practice and experimentation with extractor fan and humidifier I have created an environment that my girls love. In fact I purchased 2 more lights and another small tent. I now have two 2x2 tents both have 2 100W lights. Tent 1 has a Viparspectra p100 and P600 (both dimmable) for autos and tent 2 has TS600 and SF100D for photoperiod micro grows. My best harvests have been a result of adding the extra light but I would urge you to research on VPD and how it affects your tents environment.
https://vpd.aroya.io/
The site above is a live reference chart for managing your VPD.
This method works for me but before you try be sure you have a good understanding of VPD and how your temps and humidity effect your plants transpiration etc. Good luck dude and I hope you worki it out to your satisfaction.
Still_Smoqanswered grow question 2mo ago
What you need to try and measure is your DLI. If it is 44 or more now, adding more light won’t do you much good. Math is math, but the plant won’t care if she is flooded with 100% maximum that can be taken in.
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Green_clawsanswered grow question 2mo ago
If you want to obviously can and then control from the dimable 1... just make sure the balance of temp and humidity it correct. Never in my life have I used an equation to work out lightage, they love light it's just if you have prepared them to handle that and your grow area can handle it.. Good luck
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I_T_C_R_W___GROWanswered grow question 2mo ago
give them 1-3 days much less ! light and they get taller :)
; they are so small becauße they are happy whre they are and have no need to stretch anywhere for light.
We want to grow buds or plants?
they could also get taller with bigger pot and some days of low light.
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00110001001001111Oanswered grow question 2mo ago
they list a 2.5umol/j effiacy, which i don't entirely beleive, but probably not more than 10-20% off, either.
500 umol/s PAR total production rate for 2 of those lights. For 12 hour operation you need roughly 80umol/s per sq ft... 4sq ft x 80 = 320umol/s
for 18h operation (autoflowers) - only 214 umol/s -- again, a ballpark value that requires minimal fine-tuning.
So, you could very likely benefit from using both for photoperiods (Run at ~65% to start), but probably won't notice a huge difference in "Autoflower" plants -- what you saw was likely more about genetic diversity than the power of your light.
What you would benefit from is more uniform spread of light using 2 SF1000D. So, it's still and option and won't really cost too much more in watts, either. A good starting point would be ~44% power -- 2/3rds of what is required for 12 hour operation - the 65% value above for each light.
These suggestions won't be far off, but every garden has slightly different variables - primarily temp, rh% and co2 - that will impact how much you can give per day. Use new growth to fine-tune power of lights. Not too tight; not too stretchy... and you'll find that happy zone quickly.
If i was right about SF over-calculating efficacy, may need 10-20% more power... not +10% but 45% * 110% = about 50% for both lights. Regardless, you are using the plant growth to dictate the exact power you want, so you'll find the 'right' spot through some trial and error.
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