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Grow Questions
Light distance from canopy
Light distance from canopy
DennM39
started grow question 2 years ago
My 4x8 tent has two 2000watt led lights in it .. what’s a good distance to keep my lights above the canopy ?
Solved
Setup. Lighting
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Skinnytalls420
answered grow question 2 years ago
Germination: 50~70cm Seedling: 45~60cm Vegetative: 40~50cm Flower: 20~40cm Good luck!!!!
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Complain
Selected By The Grower
Similar Grow Questions
Solved
Big_Buds_Good_89
Light
I'm wanting to get a new light and need some help. My tent is a 3x3. I'm only growing one plant at a time. How many watts do I need? I'm going through a rough patch and only have 0 max to spend.
Setup. Lighting
10 months ago
1
Solved
Newbie87
Light question
Growing autoflowers, if you gave them 2 hours less than the recommended light; would it just take a bit longer for them to fully mature or seriously affect the yield ?
Setup. Lighting
10 months ago
8
9
Solved
KnightRider
PPFD
Hi Peeps,Ive just started looking at PPFD recently. Please can someone who grows autos tell me the PPFD they use for seedling, veg and flower. There is an article on here but i think its for photo periods.Many Thanks
Week 1
Setup. Lighting
10 months ago
2
1
Solved
DeepSouthDank
Hey Guys I have just installed 3 x UVB 10. 26W fluorescent bulbs in week 5 of flower. How long should I have these on per day and how close to my canopy? any help/input would be much appreciated homies
Week 10
Setup. Lighting
10 months ago
10
5
Solved
Domingocito
Aquarium greenhouse
If I use my old aquarium and try to germinate. Would the lamp be sufficient for early stage, or does it have to be a lot stronger?
Setup. Lighting
10 months ago
2
3
Solved
Organic_G
Licht Wechsel Woche 7 Blüte
Ich hab mir nun ein neues Licht ins 60x60 Zelt gehangen. Ist dies ein Problem, da die neue Lampe 150 Watt / um die 750-1000 ppf Die andere (ältere) hat 120 Watt und rund 350 ppf Was sagt Ihr ? Verbrenne ich ggf die Pflanzen.
Setup. Lighting
10 months ago
1
1
Solved
VulKrif
Seedling growth rate
Plants grow almost 1 cm per day (3rd week). Is it too little or correct? I have the impression that they still lack light (the rods are quite thin and long), maybe I should bring them closer to the LEDs?
Week 2
Plant. Too short
Plant. Too tall
Setup. Lighting
10 months ago
3
2
Solved
SBC84
Defoliating light damaged leaves during early flower?
Thoughts on defoliating the light damaged leaves and new growth on the larger girl?
Week 6
Leaves. Wilting
Leaves. Color - Yellow
Setup. Lighting
a year ago
3
4
Solved
Louder
Late bloom bulb switch?
Any HPS growers out there tried switching to Metal Halide bulbs during the last week of bloom?
Week 16
Setup. Lighting
a year ago
3
4
Solved
SecretC8keSociety
I am currently using two LED Pro Series 1000 & 2000 grow light . I have them both in 4 by 4 for the Wedding Glue. Recently learned about the PPFD and seed/veg range 200-400 PPFD. I got it around 330 ish to be safe. Other than that anyone have more than one light in grow tent?
Setup. Lighting
a year ago
1
1
Solved
newbieeeeem7
LED distance in grow 80x80x160
I placed the LED at a distance of 45-50cm from the seeds and consequently it was about 65-70cm from the larger plant. I have 4 plants Is it ok like this? I don't have a luxmeter and I use the phototone app to get an idea of the PPFD in each plant. LED QB 120w, LM301H
Setup. Lighting
10 months ago
1
2
Solved
GanjaDjarin
Best Grow Light Setup
What are your most preferred lights for the best output versus energy usage as growers?
Week 1
Setup. Lighting
10 months ago
3
Solved
IniquityX12
Light intensity
I'm at the start of week 3, should I crank my light up to 100% or give it another week?
Week 2
Setup. Lighting
a year ago
5
3
Solved
kardel
How to tell if new growth stunning from heat or not
Im on day4 for my third time start growing and without temp&humidity kit for the growth (including monitor item) The last two was on the same setup but not as hot as now (over 32-35°c) so i havnt encounter that issue and dont know if my plant is doing ok Best regard
Week 1
Plant. Other
Setup. Lighting
9 months ago
2
1
Solved
Cyborg420
Optimal Light Distance
My plants are experiencing some heat stress and my light is currently at 28 inches distance and thinking to lower it but it could hurt more the plants since I just did some LST and topping. Is it okay to lower it down to like 25 inches? What is the best height distance? TY! :)
Week 4
Setup. Lighting
9 months ago
4
4
Solved
Addis1501
2x4 led grow lights
Looking for opinions on the most uniform ppfd 2x4 led grow light, that is actually capable of up to 1000ppfd at the edge of the 2x4 footprint?
Setup. Lighting
9 months ago
5
Solved
Introvertalent
Led Light dilemma
I'm not sure if I should use my led light on full power? I know in the vegetative phase she needs 300-700 PPFD and I have a PPFD meter (app). On full power, I place the light around 45-50 cm from her to get around 500 PPFD but I don't trust the app , so what do you think guys?
Week 2
Setup. Lighting
8 months ago
3
Solved
thedoe
DELAY FLOWERING OUTDOORS
anybody ever try delaying flowering outdoors? need to delay 2-3 weeks (she starts her 5th week now). current plan: desklamp to extend daylight by 2H (+-15H total). summer soltice has long passed. daylight will soon shorten to 13H. 💩💤
Week 4
Setup. Lighting
Setup. Outdoor
8 months ago
2
2
Solved
jihun
MarsHydro Ur45
Hi Guys ! How can i use the MarsHydro UR 45? Switch it on 15 minutes before when the main light is switch on?
Setup. Lighting
8 months ago
1
1
Solved
Terp1
DLI and Lightcycle
Ich habe einen Knoten im Gehirn. Eine gute Idee bei Autoflowers ist es, den DLI bei ca. 40 zu halten. Wie macht ihr das genau bei einem Lichtzyklus von 18/6 von Start bis Finish? Lasst ihr eure Lampen wirklich nur bei ca. 600ppfd laufen, um nicht über DLI 40 zu kommen?
Setup. Lighting
8 months ago
3
3