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Back to Grow Questions
Ppfd?
2x2growing
started grow question 6y ago
What ppfd do you guys recommend for plants in veg? I’m finding that my light can be too strong at max power even at a 24” distance.
Solved
Week 6
Setup. Lighting
likes
HeavyHittah
answered grow question 6y ago
250 PPF for seedlings 400 to 600 for veg 600 to 850/900 in flower.
1 like
Complain
Selected By The Grower
GMSgrows
answered grow question 6y ago
Put your hand under the light at the height of your canopy., if your hand feels comfortable under the light for 1 minute then your girls will be fine. Cheers
2 likes
Complain
Similar Grow Questions
Solved
Dubb79
If humans took weed to grow on another planet where the sun was up for 28 hours and down for 10 hours, how well would it grow? Would the plants adapt to the different light / dark times? Or maybe 24 of hours light, 6 hours of dark? Theories? Earthly Proof? Comments? 👽
Week 13
Setup. Lighting
7y ago
7
4
Solved
ItsGrowingOnMe
Is this enough? 2 mars hydro 600 TS or 200 watts of led in a 24x24x36 tent,
Using a 24x24x36 tent, I have 1 mars 600 ts (100 watts) in there for one plant. I’m going to throw another mars 600 in there as well and grow amnesia haze with my northern lights. I have good ventilation, will this be enough wattage or should I get some CFLs for under canopylight
Setup. Lighting
5y ago
2
3
Solved
Vegas_Kind_Budz
I have grow space 48 x 24 x 60, I have an LED 2400 W, AC infinity 4 inch in-line fan, temperature is creeping up to around 86°, vents open at bottom of 10 should I use a humidifier to lower temperature? Add a fan?
Setup. Lighting
6y ago
4
7
Solved
Stegogrow
Changing led lamp after 8 days of growth? 300wto1000w
Can I start gémination and first days of flowering with 300w niello and then change to a 1000w which still has to arrive to my home?
Setup. Lighting
4y ago
1
6
Solved
Spicy_lemon
Light recommendations
Which light would you recommend VIPARSPECTRA xs1500 or VIPARSPECTRA p2000. Or ather recommendations around 200€?ps I grow in a room without tint
Other. Other
Setup. Lighting
3y ago
2
2
Solved
420Highlifecouple
What is the plant to light distance with a MARS TSW2000?
Setup. Lighting
5y ago
3
4
Solved
EXZELENS
Different lights
Hello people, hope you all doing fine. So, I have 3 different light models, I´ve been using them individually for plants. I use only autos and adjust the light distance individually. Should I place all the lights in the roof togheter so all plants get the same amount of light?
Setup. Lighting
6y ago
1
1
Solved
TintoBrass
Distance from lamp to bush
Friends, I ask for advice and thank you in advance🙏)) What is the ideal distance from the lamp to the bush? Light MARS HYDRO ts1000 150w now growing 2 bushes 2 and 3 weeks distance at the moment 35cm and dimmer at 60%
Week 2
Setup. Lighting
4y ago
8
5
Solved
NewJackWeed
Max 180w LED output for 2x4x6 tent with 3 plants. Good enough?
I have a 3-chip 1000W LED with a max output of 180w (Veg 125w, Bloom 55w): I'm growing autos in a 2x4x6 tent. I'd like to grow 3 plants at a time. Do I need another grow light? Will the one I have suffice?
Setup. Lighting
6y ago
5
4
Solved
Dillsnills
How many lux should seedlings get?
Jus wondering how many lux should my seedling be getting? Right now it's between 3800-5800, I'm trying to get my lights the right distance, advice input and opinions greatly appreciated. Also how many lux for each stage of growth, I've read up on it, jus looking for advice onhere
Setup. Lighting
Setup. Seedling
6y ago
5
2
Solved
BRLGrow
Leaf diagnosis
What’s could be these yellowing on these leafs? I flush it and looks like is not spreading , only some leafs on the top mostly
Week 8
Leaves. Other
Setup. Lighting
Feeding. Deficiencies
6y ago
6
8
Solved
BigBeautifulWeed
300w COB CREE Distance?
I've put my 6 seedlings under a 300W COB CREE UFO light, atm is a 30cm distance from them, I do hope is not too close. I've only a 140cm height and more would be problematic to manage in the long period.
Week 1
Setup. Lighting
6y ago
2
2
Solved
DrGr33nThumb
Is two 600w lamps too much for a seedling?
So I have x2 600w LED lights. Does having 1200w of light too much for a seedling? Should I just use one untill she matures abit? Thanks in advance DrGr33nThumb
Setup. Lighting
5y ago
4
3
Solved
Grower_the_New
I Made a Big Mistake
I forgot the timer open and the plant has been lighting for 2 days now. Normally I have to turn the lights off at 6 pm. What should I do? Should I wait until 6pm? Or should I turn it off and switch to a new light schedule? Photoperiod - 5th Week of Flowering Phase
Week 12
Setup. Lighting
Feeding. Schedule
6y ago
10
5
Solved
4EverGreen
New to Indoors-Lighting Question
First time growing indoors. I purchased a Mars hydro TSW2000 but the manual has no information…. It’s equipped with a dimmer but I have no clue on what the appropriate height & dimmer setting should be for seedlings or the height for the veg period & flowering period. Advice plea
Setup. Lighting
4y ago
3
3
Solved
MOcaver
Hello, I am using a viparspectra par1200 which has the veg and bloom adjustment knobs on autoflowers. My question is, should I only be using veg during veg and bloom during bloom? Or can I just turn that sucker on full blast the whole time? Thanks
Setup. Lighting
7y ago
2
5
Solved
BullWeedDog
Que tiempo tengo que dejar mi ventilar encendido??
Can I use the fan in my grow only when the light is on?? I mean, can I set it to turn on and off with the light in the same cycle, or should it always be on??
Other. General questions
Setup. Lighting
Setup. Ventilation
5y ago
1
1
Solved
NewJackWeed
Seeking a reasonably priced light for 2x4x6 tent (still)
I'm interested in picking this up. Thoughts? I have a 2x4x6 tent. I believe it's 50w x 8sqft is 400 watts needed? https://www.amazon.com/iPower-Digital-Dimmable-System-Reflector/dp/B006GGP8P4/ref=sr_1_2?_encoding=UTF8&c=ts&dchild=1&keywords=Plant+Growing+Light+Fixtures&qid=16110
Week 4
Setup. Strain · Autoflowering
Setup. Lighting
6y ago
6
4
Solved
jamjam887766
additional blurple lights
I also got the blurple lights from my friend. To keep the temperature down I haven't installed them yet and not sure if I will. Will they make a difference if I add them next to the current LED? If so should I wait until the flowering stage or anything like that?
Week 1
Setup. Lighting
6y ago
3
3
Solved
Zweibel
Single CF Grow COB LED (300 W) sufficient for one plant?
Would like to know your thoughts on my 300-W COB LED (www.amazon.de/dp/B07Z678V5) I’m using in open space on a single plant. I’m not expecting huge yields with this lamp, but I am hoping it will be sufficient to bring a healthy plant to harvest.
Setup. Lighting
6y ago
4
4