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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
purplehazelover420
Autoflower Starts Flowering in Week 3?
Hey, So its my First time grow here, i Started wit Skunk #1 Automatic by senis seeds. its 20 cm big. It Seems like its already starting to flower after start of 4th Week. is this normal? Will it still grow? and should i use the flower Grow light at this Point? Thank you so much
Setup. Strain · Autoflowering
Setup. Lighting
5y ago
2
3
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
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
2y ago
2
2
Solved
Bluebeast007
6500k colour Suitable
Hi Guys, Would a CFL light with 6500k colour spectrum be able to flower my plants successfully? guys at my grow shop say it won't.......
Setup. Lighting
5y ago
2
3
Solved
zunz16
light schedule change
I wanna change light schedule for my babies.. for now they run from 07 to 24 hours and I want to run from 18 to 12 hours so I would have dark period during day.. should I just leave it to run for 30 hours and then introduce new "night" time?? Plants are 4 autos 7 and 8 weeks old
Setup. Lighting
6y ago
4
4
Solved
greenfingers007
How far does my LED light need to be
Currently growing Easy Bud Auto she's just over 4 weeks old my LED light is 300w and is currently 16inches from the canopy is this to far away??? i'm also growing in a 7.5 litre pot is this pot sufficient??? as Easy Bud Auto only reaches heights of 50-60cm indoors Thanks
Setup. Lighting
6y ago
1
1
Solved
Penguin
Just ordered a 150W Quantum Board, can I swap my Blurple UFO mid grow to the new board? Is it possible to increase flower size this late into a grow?
My Blurple apparently uses 230W actual draw but is advertised as 600W. If that 230W value is correct, does that suggest my new, much more expensive QB is not as good? Will it make a difference to the plants health? What are the benefits from the QB? Thanks!
Week 8
Buds. Other
Setup. Strain · Autoflowering
Setup. Lighting
6y ago
3
3
Solved
AlpineGoat
New house - new light!
Since I'm moving in a month or two I'm gonna buy a new light for vertical growing for celebration! I'm still going to use the 80x80 but I'll have some space in a separate room, more comfy.. Which light is better for a vertical grow?
Other. Other
Setup. Lighting
6y ago
3
4
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
3y ago
10
5
Solved
Cremo
When should I switch on the other half of my LED light setup?
Hi guys, I grow 6 plants in hydroponics in a 4x4 grow box and they are 2-3 weeks old (about 7-8 cm tall). I use MarsHydro TS 3000 LED (450W) which have 2 seperate LED panels. Right now I run only one panel and would like to know when I should turn on the other panel. THX
Setup. Lighting
6y ago
1
2
Solved
AutoZone420
Light help please :)
I’m trying to figure out the optimal height to hang my KingLed 1000w full spectrum at for seedling, veg, and flower. I feel like part of why my plant was is so small is due to incorrect hanging of the light but idk
Setup. Lighting
6y ago
2
2
Solved
Kdog20
Veg/Bloom switch
My plants are 5 weeks from germination, I have flowers and buds forming but I am starting to worry they aren't growing as they should (I want them bigger). I have had my light veg and bloom switches on throughout. Would you recommend I change over to just bloom switch now?
Week 5
Setup. Lighting
6y ago
4
5
Solved
Mrnelsonp
Beginners led light for 1 plant
Hi everyone, I decided to grow 1 plant indoors. I need some good advice about a budget friendly led light which is fine for 1 plant at the time :) Thank in advance! R.
Setup. Lighting
6y ago
3
2
Solved
Chaweeder
Are all Amazon lights Garage,
I wanna buy some pretty descent LED lights, but dont have tons $$$$ my plan is eventually to get up to 20 autos in 1 room? I dont wanna spend 1500$ per light, but 500$is ok. I will buy more of these 500$ lights to fill up my 8X12X8 room, a few at a time, I dont wanna buy crap
Setup. Lighting
6y ago
4
Solved
yatzi
Light intensity for 2.5 week auto flower
Can anyone recommend how high and what percentage to run my light. The leaves have not been strongly perked up in a few days and I wonder if it's that the intensity of light is too high. I've been at 80% at around 14 inches. vipraspectra p600. Critical purple auto.
Week 2
Setup. Lighting
5y ago
1
Solved
Designsbycole
Lighting for 1 week plant?
Should I give my plant 24 hours of light at one week? I’m very new to this and want to learn as much as possible...
Week 1
Setup. Lighting
6y ago
2
2
Solved
Smokey89
Lighting
Can I run my led lights on veg&bloom during the veg stage or is it best to stick to just veg
Setup. Lighting
5y ago
1
2
Solved
BRLGrow
Dropping sad girls
Hello masters !! 2nd grow trying to make everything right. Candy kush autoseeds 35 days 1st week of flowering The plant dropping on the top, new grow twisting, little yellow tips Over or under water? Light stress?nutrient excess?
Leaves. Other
Setup. Lighting
Feeding. Deficiencies
5y ago
3
7
Solved
Hustlepuff
Light distance affect plants height
Hi, does my light distance can affect the plants height? I find my plants are having short spaces between nodes (marshydro sp150), Thanks much! 👺
Week 2
Plant. Spaces between nodes
Setup. Lighting
3y ago
7
7
Solved
IsseyBukkake
Hi there, I currently have 9 1 day old Auto seedlings under a 400w FL lamp with 2 broken outputs so its really running at 300w, which is 18" away from the seedling I also have a 600W Kind LED and I'm wondering if I should replace the broken FL lamp with the LED? Thanks in advance
Setup. Lighting
6y ago
3
3