The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
How much W is required for automatic plants?
timbarin
started grow question 3y ago
How much W should I use with automatic plants in grow stage?
Solved
Week 1
Setup. Lighting
likes
DrJones
answered grow question 3y ago
100W / 150W for a 2X2ft 300W for a 3X3ft
1 like
Complain
Selected By The Grower
Chow_13
answered grow question 3y ago
The same amount of W that you used for the other 10 auto grows you did. Happy Growing
likes
Complain
crimsonecho
answered grow question 3y ago
you can never have enough W i guess lol
1 like
Complain
GrowCN
answered grow question 3y ago
What is "W"? worms?
likes
Complain
Similar Grow Questions
Solved
einamio
Can a 1000w LED grow light be closer than 60cm (24") to a seedling?
Different sources are saying: 1000w LED light should not be closer to a seedling than 60-75cm (24"-30"). The seedling should be getting 5000-7000 lux, 100-300 PAR (PPFD 18h) and 12-20 DLI. Question: Can I put the light closer at ~40cm, dimmed to match the needed lux, par and dli
Setup. Lighting
Setup. Seedling
2y ago
3
3
Solved
Ninjabuds
26 hour day cycle?
ever done a weird light cycle for photo plants? like 14 hours of light then 12 hours of darkness then keep repeating I know that this is longer than a normal 24hour day. 1. 12 hours of darkness is what makes weed start flower. Do weeds know days r 24hr? Can a 26hr day cycle work
Setup. Lighting
8mo ago
4
Solved
Pete420growdiaries
Switch to red or keep both?
Q: i have 2 switches on my light 1 blue for veg. and 1 red for flowering. Is it better to switch to red alone now I'm in bloom fase? For the grow fase was red and blue on, is it better now for red light or should i keep both on? All help welcome🙂
Setup. Lighting
4y ago
3
3
Solved
HappySkunk
Viparspectra LED tips
I’m looking into buying a viparspectra in the future. Which one is best for one plant? I’ve been looking at the 600W one, but I don’t know if that’s the best option for growing a good yield plant in a 80x80x160cm tent.
Setup. Lighting
6y ago
2
2
Solved
Foxtrotoscar
Mars Hydro 1000W
Is the mars hydro 1000w enough for the three plants that I have growing as I have replaced the 2 other leds. Should I keep one in along side the mars or run it solo?
Week 9
Setup. Lighting
6y ago
2
1
Solved
LeastExpectedGrower
What are optimal PPFD
Anyone have a quick and easy rule/suggestion for PPFD & lux for plants in Seedling, Vegetative & Flowering states? Lots of divergent answers online. At plant top right now I'm currently at ~1000PPFD and the lux readings are 49,000-51,000. What are 'best practices' for this?
Week 3
Setup. Lighting
4y ago
4
3
Solved
Captain_marijuana
Light
What would you say about my lighting based off the leaves of this auto? Too bright, too weak, or just fine?
Leaves. Other
Setup. Lighting
3y ago
1
5
Solved
Noahbear
Par readings from the photone app or any other reader
I just started using the Photone App- what readings have you guys and gals used as a bench-mark? Seedlings, Veg and Bloom and Flowering? Thank you in advance for any input
Setup. Lighting
4y ago
4
Solved
BUDMAN73
viparspectra p600 x2 but different
has anyone else got the same viparspectra lights but they different? both got from amazon but 3 months between purchases
Week 6
Setup. Lighting
4y ago
5
2
Solved
Phillycash
Which light cycle should I use in my tent
Ok so I have three autos and two photos In my tent. So far I have only been running the veg stage on my light so the question is can I or even should I run both the veg and bloom cycle or just keep it on the veg cycle.the autos are only two weeks old and the photos just sproted
Setup. Lighting
5y ago
4
4
Solved
Kershaw1231
Is this OK?
Hi my tent arrived yesterday so I put my 6 auto plants in there my auto nl and 5 other auto seedlings what I need to start diary on them but I run light 18/6 schedule on at 6 am of at 12 am but I've changed today to of at 1pm on at 7 pm is that OK? ?
Setup. Strain - Autoflowering
Setup. Lighting
Setup. Seedling
5y ago
4
Solved
Dankbudz1
Led
Best budget led uk please
Setup. Lighting
4y ago
1
1
Solved
Pancake
Too much lighting?
Too much/too many lights? Getting all popcorn buds/low yields. Getting a light meter this week. Going through by process of elimination on how I can get better grows. Read the manufactures instructions, but not good with technical electrical/lighting terms. Thank you.
Week 9
Setup. Lighting
4y ago
4
6
Solved
TheUk420Show
Telos Lighting Brand New Tech ?
Hi Guys so what do you think to a brand new invention by GN in the uk fully water proof bluetooth ghost network end to end encryption dimmable by PPF number (first in the world) ? I have been gifted one to test by GN after meeting the team at a grow expo. What do you think ?
Setup. Lighting
4y ago
5
4
Solved
420Highlifecouple
Man am I confused.My AUTO ZKITTLEZ girls are flowering under a blurple light.Do I just put on bloom (red) or bloom and veg? My light cycle is 18/6.Do i change to 12/12???????
Other. Other
Setup. Strain - Autoflowering
Setup. Lighting
4y ago
5
Solved
SAC87
Light timer Problem
Hey Growers. So I made a dumbass mistakes…..for the last 18 days I have had my light timer set for 12 hrs 15 mins on and 11 hrs 45 off. They are looking good and budding up. I’m wondering is that close enough to 12/12 to have my day 1 flower be true for accuracy sake. Thanks
Week 7
Setup. Lighting
4y ago
1
7
Solved
Smokey89
Light output once flipped 12/12
Hi guys just after a bit of information regarding flipping. When you guys and gals flip do you increase your light output gradually or do you just go straight to full power. Any information will be appreciated thanks growmies
Setup. Lighting
4y ago
1
2
Solved
Smokey89
Lights
Hi guys I've just upgraded my light to the spider farmer ts2000 I've got it at 30" from canopy set to 60% is this to high?
Week 2
Setup. Lighting
5y ago
5
Solved
morganfreeman420
Distancia de la lampara
Tengo una tienda de cultivo de 120x120x200 y un led de 730w el FC-E6500 de marshydro tengo en mente poner unas 4/5 plantas para mi primer cultivo y quisiera saber si hay alguna guia para saber a que distancia tengo que poner el led de las plantas en cada fase de la planta. THX
Setup. Lighting
3y ago
1
1
Solved
mushimushi
Strange Bud ....
what she need , but its not seem dense ok she need some week more but its like but its not grow so much , maybe its phenotype ,meybe light excess or nutrient deficit ?
Buds. Not fattening
Setup. Lighting
Feeding. Deficiences
3y ago
1
5