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Back to Grow Questions
Light pointed at white wall for supplemental lighting?
mexycomeback
started grow question 6y ago
Does it makes sense to have a small 300W COB LED pointed at the white flat painted wall for supplemental lighting? If I point the light directly at the plants I would surely burn them but have no space to move back.
Solved
Week 9
Setup. Lighting
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deFharo
answered grow question 6y ago
I use those small cobs to give direct side light to the plants, I bring some as close as 10cm and everything is going well.
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Selected By The Grower
NobodysBuds
answered grow question 6y ago
plus, you are doubling the distance, but that may be the reason you do it...
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NobodysBuds
answered grow question 6y ago
Not the most efficient, but if angling it at the plant from side is too close, you getting post the light (~90%) off one bounce. 81% second bounce...
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Similar Grow Questions
Solved
TheWeedian
LED height recommendations - 120w Kingbrite
Hi guys, I need some recommendations for my LED height. I'm running a Kingbrite full spectrum 120w bar light at 32" from my pots at 50% power and I'm worried my girls are stretching. Can anyone give me some advice please? It would be really appreciated :)
Week 1
Setup. Lighting
6y ago
1
4
Solved
studente
Lighting
Wow. Thank you so much for the reply. I have been playing with LUX meter app and my light. I was bit skeptical about the lumens that I would get from the 15W but as it turns out, it receives well enough ppfd. Still skeptical about the spectrum i am having.
Week 2
Setup. Lighting
6y ago
1
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Solved
Mj42Organic
Additional lighting in flower???
I’m planning on putting another 2 x 600wLED (blurpul colour type) alongside my current 2 x1000w led Cree cob lights. I have them spare and was hoping this will help with flower/thc production??? Is it worth putting them in or just wasting electricity. Any help appreciated 🤙✌️🎄
Week 21
Setup. Lighting
6y ago
1
1
Solved
Gianemba
Automatic flowerlight?
Hello growers I got a tent full of automatic .my question is now do I need a flowering lamp or not . Can I boost the buds with it Make it sense? I got 150/w growth light and 200/w flowering light Does the little bit more power anything ?
Setup. Strain · Autoflowering
Setup. Lighting
6y ago
2
2
Solved
Kershaw1231
Does she need more light ?
Does my plant need more light she is under a 300 watt light I do have a spare do I need to put it to use ? She seems to be growing a Lititle slow for 2nd or 3rd week I am using advanced nutrients grow, micro, bloom any help would be great this is my 1st grow thanks
Other. General questions
Plant. Other
Setup. Lighting
5y ago
1
4
Solved
Sinns
What kind of lamp should I use?
I was wondering if I would notice a difference if I switched from the GC Europe 250 Watt to the Caluma Force LED 320 W? Thankyou for infermation :)
Setup. Lighting
1y ago
3
3
Solved
yourbestbud
Light too hot
I got a Lumii hps 600 watt light I have a fan and a small extractor fan in my tent but temperatures were too high (44 degrees Celsius) how can I cool my tent ? Ducts etc?
Setup. Lighting
3y ago
3
3
Solved
Faegrows
25% TS1000 for sprouting or higher?
I recently started growing in my new HS40 with the TS1000. How high should I put the TS1000 at untill she sprouds? Should I keep her on 25% untill she sprouts or can I push it up a bit? The light is all the way up.
Setup. Lighting
4y ago
3
4
Solved
GrowsL
Is this light suitable
Is this good enough for a 2×2 grow space one or 2 plants
Setup. Lighting
5y ago
3
5
Solved
TCH0808
Mars Hydro TS 1000 [3500K,100W, LED light] (Plants @ 3
Questions: See photos. 1. MARS Hydro TS 1000 will not support 4 cannabis plants, correct? Support = Obtaining full plant potential. 2. The Chinese 3000K lighting won’t “hurt” my plants in veg, right? It’s just simply isn’t the lighting that works for veg growth, yea?
Setup. Lighting
6y ago
2
3
Solved
Dillsnills
Should my ViparSpectra p2000 be enough for 2 autos in my 2x4 tent or should I add my king led 1200?
I'm starting 2 Glueberry Og Auto's from Dutch Passion, is my ViparSpectra p2000 enough for my 2x4 tent or should I put my king led 1200 in with it?
Other. General questions
Setup. Strain · Autoflowering
Setup. Lighting
5y ago
3
4
Solved
Horseluisweed
Is she small??? How do you see her?! (be honest like broke whores) 13 hours of light on average (weekends 24/7 and during the week 8 hours while I sleep) Day 19 since cotyledons, I have her under a 470lm 4000k 6w LED bulb in a closed box without ventilation!...☝️👵🏻💸
Week 3
Setup. Lighting
5y ago
1
2
Solved
GlockAbuser
Nutrient burn, Light burn, or Phos Def? red stems purple bruises,
Noticed red lines leaking red into the leaves with purple bruising, and the starter bottom leaves seem to be turning yellow, with the leaves above looking dark green with spots. Is this signs of light burn or nutrient toxicity? And is it lacking phosphorus or just the strain gen?
Leaves. Color · Dark-purple
Plant. Stem · Red or purple
Setup. Lighting
3y ago
3
4
Solved
Tubington9
Opinions on FC-E 3000?
What’s everyones experience with the mars hydro FC-E 3000? Wanting to upgrade my 3x3 tents light, probably move my ts1000 into the smaller tent with my sf1000d
Setup. Lighting
5y ago
1
2
Solved
Abacus
Life of light and filter
after 3 cycles at 18/6, should I change a cfl 200w that I use for both (veg and bloom)? and what about carbon filter that I use also after harvest?
Setup. Lighting
Setup. Other
4y ago
1
2
Solved
LeastExpectedGrower
What are optimal PPFD
Anyone have a quick and easy rule/suggestion for PPFD & lux for plants in Seedling, Vegetative & Flowering states? Lots of divergent answers online. At plant top right now I'm currently at ~1000PPFD and the lux readings are 49,000-51,000. What are 'best practices' for this?
Week 3
Setup. Lighting
5y ago
4
3
Solved
Abacus
Better temperature for early veg
In auto flower indoor, Early veg, is better have 18ºC/24ºC, or stai around 23°C during all the day. I have an Inkbird that I can set on 23, that is cool when is light off, it warm it up. But with light off it’s drop down temperature to 23.
Setup. Lighting
4y ago
1
6
Solved
GrowerMario
Medic Grow LED: Your experience vs. top-tier brands?
Hey growers, I’m currently running Medic Grow LED fixtures in my setup. Would love to hear your experiences with them – especially regarding flower density, terpene profiles, and overall efficiency. Has anyone noticed any significant differences compared to other top-tier brands?
Setup. Lighting
2mo ago
1
Solved
FIRSTGROW2021
Sf1000
Hey can somebody please advise me what settings and height I should have my sf1000 on please at all stages 😊
Setup. Lighting
5y ago
4
2
Solved
Steevoh978
Lights died
So my lights died last night. Would a 2000 watt be good for a 4×4 tent?
Setup. Lighting
5y ago
2
2