Start My Diary
Login
Sign Up
Login
Home
Diaries
Shorts
Questions
Contests
Growers
Strains
Breeders
Nutrients
Lights
Tents
Blog
English
Espanól
Русский
Deutsch
ไทย
Login
Start My Diary
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Chat
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see
Privacy Policy
Accept
Grow Questions
Light pointed at white wall for supplemental lighting?
Light pointed at white wall for supplemental lighting?
mexycomeback
started grow question 4 years 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
like
deFharo
answered grow question 4 years ago
Yo uso esos cobs pequeños para dar luz lateral directa a las plantas, algunos los acerco hasta 10cm y todo va bien.
like
Complain
Selected By The Grower
NobodysBuds
answered grow question 4 years ago
plus, you are doubling the distance, but that may be the reason you do it...
like
Complain
NobodysBuds
answered grow question 4 years 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...
like
Complain
Similar Grow Questions
Solved
Green_Man_420
Light intensity
My plants have been looking sad for a couple weeks. Tried everything then the other night I turned my light down to 40% giving a DLI of 28 they perked right up with 24 hours. I have now put it up to 60% giving a DLI off 39 will this be ok or should I keep it low. Week 2 flower.
Setup. Lighting
2 months ago
1
2
Solved
MrShortTermMemory
Lighting cycle for VEG stage. Is 24x7 OK?
Hi, Should I use the VEG lights 24x7 from the time I plant my seed until it's ready to bloom, or would something like 18 hours on and 6 hours off make more sense? Is there a "best practice" for veg lighting? It has worked for my first 3 grows. VIPARSPECTRA 600W LED Thanks, Mr.STM
Setup. Lighting
a month ago
7
7
Solved
Lew420
Bad idea?
Will a mars hydro TS1000 be too strong for a 60x60x140cm tent? I have been using a TS600 and TS1000 in tandem in a tent 4x too big for the light level, I have been growing strong and tasty buds but with low yields so downsizing my tent size to maximise the light.
Other. General questions
Setup. Lighting
3 months ago
3
3
Solved
hweixd
Got a Mars Hydro TS600, will it do alright?
My plan is to grow only 1 plant, in a 40x40x120 tent. I know the tent is pretty small but hopefully i can do some training on the plant to grow wide Will the light do until the end? 100wats, but no light dim possibility. Currently growing seedling at 13 dli at 60 cm
Setup. Lighting
3 months ago
1
1
Solved
Zarayju
Lights
Hi guys! What light should I get? The viparspectra xs1000 or the marshydro ts1000? I intend to grow in a 2x2 space. Would the viparspectra be as bright as the marshydro because its more efficient?
Setup. Lighting
16 days ago
3
Solved
girlwhogrows
best LED light 4x4
Best LED grow light for a 4x4 Could anybody please suggest which LED light they would recommend for a 4x4 grow. Willing to spend around £500 maximum as I really want to invest however most videos on YouTube are marketing their own. Really appreciate your advice. Many thanks!
Setup. Lighting
a month ago
24
12
Solved
girlwhogrows
Is this MarsHydro light the best choice for my 4x4?
Is the MARS HYDRO Smart FC-E6500 Bridgelux 680w the best option to use for my 4x4 tent. Will be doing 9 CBD auto flowers as a hobby. Thankyou community!
Setup. Lighting
a month ago
2
2
Solved
ProGuyMJ
Lux Meter and Hydroponics
Who has experience with using LUX meters to position lights in various stages of hydroponic growth. I feel I am giving mine too much light, based on the readings, but don't want to pull them back. Currently 10" from the plants.
Setup. Lighting
a month ago
6
Solved
girlwhogrows
MarsHydro FCE4800 for a 4x4 grow?
Is the MARS HYDRO FC-E4800 480w the best option to use for my 4x4 tent. Will be doing 9 CBD auto flowers as a hobby. Would you suggest any alternatives? Really appreciate all the advice and will be making my purchase with the advice you have all given me so far!
Setup. Lighting
a month ago
1
5
Solved
MarcoCasanova00
Too much light or PH imbalance?
I dont know, something strange about the color, the spots on the leaves maybe? suggestions accepted. Maybe I need to add a fan ASAP, or let more air into the tent? Dimmer is sset to 20% 25% , maybe I should give more light? or maybe less?
Leaves. Color - Yellow
Leaves. Color - Pale
Setup. Lighting
a month ago
2
2
Solved
sylix
What lamp to start growing (cheap)?
I want to grow 1 or 2 plants but i cant find a cheap lamp for my preference. I ordered Northern Autos and DoSiDos Auto. Im planning to plant one of each. I´ve got 36cmx36cmx140cm im growing without a box i will try building it myself. is it enough space for 2 plants and wich lamp
Setup. Lighting
a month ago
13
10
Solved
girlwhogrows
what ppfd for 20/4 autoflower?
Just bought the FC-4800 and before this I had always measured my light using inches away from canopy however I want to learn how to use the light using PPFD. I have found average measurements online but what should I aim for for a 20/4 autoflower schedule please? Thankyou!
Setup. Lighting
a month ago
2
5
Solved
BENY_TRUBY
ILUMINACIÓN ALTERNATIVA PARA PLÁNTULAS AUTOMÁTICAS EN EXTERIOR
Tengo un reflector y unos neones TCL para poner mis plantas automáticas a crecer después de la germinación hasta que estén preparadas para estar en el balcón. Pero no funciona. ¿Alguien recomienda una bombilla normal que pueda utilizar hasta que reciba un nuevo reflector? GRACIAS
Setup. Lighting
Setup. Seedling
a year ago
1
Solved
EL_CHAPO_420
LIGHT HEIGHT / INTENSITY?
IS IT BETTER TO HAVE THE LIGHT INTENSITY LOWER AND THE LIGHTS LOWER OR HAVE THE INTENSITY AT 100% AND RAISE THE LIGHT?
Setup. Lighting
a year ago
1
1
Solved
bobo66
does anyone use sanlight q6w gen1 215w leds? how high do you keep them?
I have 2 such lamps in a 4x4 tent, where I bought it, they said that there should be a distance of 50 cm between the two lights, but they didn't say how far I should keep the lights from the plants.. and who achieved what yield with it? https://www.divisionagro.ba/Products/Details/14
Setup. Lighting
a year ago
1
1
Solved
bobo66
Will changing hps to led cause problems for my growth?
I would change from 400w HPS to 215w(x2)sanlight gen1 led, I will enter at 4 weeks of flowering. won't it disturb the plants if I change the light? (4x4 tent.(
Setup. Lighting
a year ago
3
4
Solved
TonkaSun
raise lights during stretch?
Should I raise the lights during flower stretch to maintain the same distance from light source to canopy? I notice that my plants continue to get taller than most. I know the stretch is natural, but I'm wondering if constantly raising the lights with growth is the right approach
Week 12
Setup. Lighting
a year ago
2
1
Solved
Ede2300
Grow lights issue
Hey guys, I have rarely used MARS REFLECTOR 96 600W LED GROW LIGHTS. Now on one side the blue spectrum lights (grow) stopped working, the reds and the fan are running. Any ideas on how I can fix it on low cost? Happy 4:20
Setup. Lighting
a year ago
2
2
Solved
Hou_Stone
a good lamp ?
Good morning, Currently I have an hps and I'm looking to invest in a good lamp. Do you have a good one to recommend? I have a room 100x100x200 cm Currently I want to take the mars hydro fc3000 I am not sure if it is powerful enough for my room? I would like to have opinions
Setup. Lighting
a year ago
4
6
Solved
Spliffi
Stealth setup recommendations?
Any advice: all the heavy talkers out there nows you chance. I would like Any and all advice on building a stealth setup. Do you think this hardware will be good for 1 plant with heavy LST.
Setup. Lighting
Setup. Ventilation
a year ago
3
6