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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
likes
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
EJBudz
Adequate Lighting with this LED?
wondering, do i need more light than this spider LED 1000? If not, should i be cranking this spider LED to 100% or keep it at 25% (thinking this is hitting that 20-30 Watt/ft2) (total sqft is at 11)
Setup. Lighting
4y ago
6
5
Solved
TheChronicHunter
11/13 for flower
I need my grow to finish flowering ASAP, due to extenuating circumstances... I’ve read that flower can occur faster under 11/13 with some loss of yield. Does anyone have experience here? How much will yield and flowering time be influenced?
Setup. Lighting
6y ago
2
3
Solved
esotaro
What is the highest DLI (Daily Light Interval) that newly sprouted Cannabis plants can take for the first month after sprouting?
Also, is there any benefit to having more than 18 hours of light a day? Thanks
Week 1
Setup. Strains - Photoperiod
Setup. Lighting
Setup. Seedling
5y ago
7
6
Solved
Filippo
Low cost lights? That consume little (under 10pw if possible)!
Setup. Lighting
6y ago
2
Solved
Jakescalls
Led light
Hi guys, I recently purchased a 200watt LED of canna lights it doesn’t have the veg and bloom switches does this make any difference ?
Setup. Lighting
7y ago
2
Solved
Grow4Releaf
Power outage :-(
No way . Power outage . My area is out of power for the past 5 hrs and estimated it won't be back till Saturday afternoon.. how bad is this going to hurt my plants? Not only lights are cut the room is cold already. (Basement semi finished). Photo before power cut,so u can see
Other. Other
Plant. Other
Setup. Lighting
4y ago
5
4
Solved
zkittlezjunior
How Much Buds can i get from 150W Cob Led with using lst techniques in auto ?
Like i asked.I have 150W Full Spectrum Cob Led.The amount of lux is about the 12K by the way.So im gonna grow only one plant like auto royal dwarf or white widow auto.Do you think how much grams can i get with this condition?
Buds. Not fattening
Other. General questions
Setup. Lighting
6y ago
1
2
Solved
Kush_Monster
Veg and bloom switch on 600w led
I have a 600w full spectrum LED grow light that has switches for both bloom and veg. Growing autoflowers, how do i know when to turn on the bloom switch? Also how far away should a 600w led be away from the pot at germination, veg, and flower?
Setup. Lighting
6y ago
2
2
Solved
PapaBaer
Hilfe zu warm im Zelt?.... keine Regulierung mehr möglich :-(
I have a question.... I only have a 1.6m tall tent and my big ladies are now almost 80cm tall. My problem is that the temperature at the leaf canopy is almost 30 degrees. I've already left the tent door and the apartment door open, but that doesn't help much; the thermometer is...
Week 5
Other. General questions
Plant. Too tall
Setup. Lighting
6y ago
1
Solved
coloradogromie420
1800 watt hao fst cob
anyone ever use a hao fst 1800 cob grow light im using two in a 4x4 tent rn until i get a new upgraded one actual watts is somewhere between 240 to 300 from some reviews ive read
Setup. Lighting
5y ago
3
Solved
iiswiftt
Auto Light Cycle
Can you switch an autoflower to 24/0 during flower?
Week 8
Setup. Lighting
6y ago
3
5
Solved
HappySkunk
Idiot - new light, wrong sized grow tent
So I’m an idiot. All this time I thought I had and 80/80cm grow tent, when it turns out it’s actually 60/60, and I of course just ordered the SF2000 light, which is almost 65cms on one side. Should I just order a new tent right away to make it fit? Or could it be squeezed in? 😭
Setup. Lighting
6y ago
1
1
Solved
Durban458
Set up light
Hello i need help about how i should set up my light (lumatec) for grow phase. which power is better 250W, 300W 400W 600W Tent 1,2 m x 1,2 m thanks for help bless up for all growers ✌️
Setup. Lighting
6y ago
1
1
Solved
Mikewithgreenthumbs420
Switching grown lights not sure what too remove got new led
I got a new veg light and led bloom light my question is should I remove my ballast light from bloom room or can I run both led plus ballast light together. That's what I'm wondering whats the best way to go I'm currently just using this light Last picture is my veg blue an white
Setup. Strains - Photoperiod
Setup. Lighting
6y ago
1
Solved
Kayaboy
Downgrade my light wattage or not?
My tent is 80cm x 80cm x 180cm and i use a 400w hps/mh. Based on all light calculations i came across it gives me a total requirements of light of around 160-200 watts. Should i downgrade to a 250w system or keep the 400w and why please, some expert ? Thx
Setup. Lighting
7y ago
2
2
Solved
CaptainCream
CREE or COB LED ?
What light is better for growing plant ? CREE LED or COB LED ?? Tell me your opinion ?
Setup. Lighting
7y ago
3
2
Solved
Mikewithgreenthumbs420
Buying a grow tent looking for better quality spider farm 2000 or Hydro mars 2000 set ups from Amazon
So im debating on which set up. I want a good set up came up with these two Spider farm 2000 24x47x71 or Hydro mars 2000 48x48x80 grow tents from amazon which one would get more plants looking for quality using burple led rite now any suggestions please help me Thanks
Other. Other
Setup. Lighting
6y ago
4
Solved
AlienScrOG
co2
co2 ... how long does a 1 kg cylinder last 5 square meters of external surface of the box approximately 10-15 cubic meters around the box outside the box box measures 50 cm x 120 x 190 high now you can do it
Setup. Lighting
Setup. Ventilation
Feeding. Other
5y ago
4
4
Solved
Tikihoofd
Future - upgrades
I might have a silly question, but here goes: I've found some lights I have left in my garage, and since I would like to upgrade my setup, I would like to know if these lights could function as grow lights. The light=> Osram Highbay HQL LED E40 140W Thanks!👽
Week 7
Setup. Lighting
6y ago
3
3
Solved
BostonGirlGrows
LEDs for 32x32 tent
New to indoor growing. Set up a 32x32 Vivosun tent. Currently have a giixer 1000w light, but wasn’t feeling the coverage was good enough for several plants. So I just ordered a second one. Do you think 2 giixer 1000w leds is ridiculous overkill? Any thoughts appreciated.
Week 2
Setup. Lighting
7y ago
2
2