Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Luces en floración
IMCAGrower
started grow question 5y ago
Debería quitar los foco cfl o los puedo sumar al sodio de 400w? No tengo problemas de calor.
Solved
Week 5
Setup. Lighting
likes
GMSgrows
answered grow question 5y ago
Good to leave any light you have, but I would recommend placing you HPS horizontally for max light to the canopy. Cheers
3 likes
Complain
Selected By The Grower
Hashy
answered grow question 5y ago
If you have no heat problems then leave them in
1 like
Complain
SpiderMite
answered grow question 5y ago
Sure leave them. Just don't break them they have mercury in them. Toxic stuff.
1 like
Complain
Similar Grow Questions
Solved
BladeCutter
WHAT IS CAUSING MY LEAVES TO CURL? (Day 64 pictures)
The leaves at the top of the plant seem to be curling up. My first guess is that there is too much light. I recently moved my light down to 12 inches above the canopy. The PPFD should still be under 1,000, but I don't know what else could be causing it. Please help. 🙏
Week 10
Leaves. Curl up
Setup. Lighting
6y ago
4
4
Solved
420_Little_Green_Fingerz
Light schedule - I am about a week off being ready to harvest. I currently have the lights on 24h. Should I introduce dark periods and or a 24/48h complete darkness before harvest? Thanks
Buds. Other
Setup. Strain - Autoflowering
Setup. Lighting
5y ago
1
4
Solved
alien_grower
Efficient lighting
Keeping both 200w VEG and 300w FLOWER lights 24h is too expensive for my alien wallet. So I left the veg light under 12h/12h and flower on. Please share with me some of your past experiences and how can I save money and grow killer yields. 👋👽
Week 5
Setup. Lighting
6y ago
4
4
Solved
MrIssa3x3
Flickering AC INFINITY light- S33
I have flickering ac infinity lights. Connected and disconnected to controller. It won’t let me post a video but the video is on my most recent week of flower on my diary. Has anybody ever experienced this? And how did you fix?
Setup. Lighting
1y ago
5
Solved
VermeerT
New person to grow, what is picture with lamp?
Hi! I just to start first time on weekend is GD safe? I just now have a mars lamp it is looking like recommend and cheep but is difference picture with numbers and I do not know what is this. Can someone help me what high I should put it? I am with auto is this 12 hours or more?
Setup. Lighting
5y ago
4
4
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
2y ago
26
11
Solved
GermanGrows
Light height and intensity
Hello all. Recently I upgraded my lights to 2 mars tsw 2000. I've noticed my plants are growing slowly compared to everyone else's. I have it set at 24 inches 25%. However a mars hydro admin posted 12 inches 75% during veg? Isn't that like 1500 ppfd? I'm so confused.
Setup. Lighting
5y ago
2
Solved
Abacus
Life of light and filter
after 3 cycles at 18/6, should I change a cfl 200w that I use for both (veg and bloom)? and what about carbon filter that I use also after harvest?
Setup. Lighting
Setup. Other
4y ago
1
2
Solved
Weedster
light cycle
Hi, My grow is now under 18/6 light cycle and last night my timer got broken, she was 14 hours in darkness. What should I do now ?, Can I keep 18/6 cycle, or do I have to switch to 12/12?. I hope she dont freak out 😪
Week 5
Setup. Lighting
6y ago
1
1
Solved
MrGreen92
Asymmetrical baby seedling
Hi everyone, just need an opinion on my poor seedling that looks a bit mutated and stressed, came home today and my timer decided to break and just stay on no matter what you press.. My heater comes on when the lights off and was 28c in there 🙄 should I move the light away?
Leaves. Curl up
Leaves. Twisted
Setup. Lighting
5y ago
5
6
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
Rastaluna
Light height
What do you think guys, should i lower the light at 60 cm veg switch on ?
Week 2
Setup. Lighting
5y ago
7
4
Solved
Japangarden
Sanlight Q6W or Samsung lm301h Quantum Tech v3 ?
SANlight Q6W Gen2 245W or Samsung lm301h Quantum board 250w? (80x80x180 cm growbox + S&P TD-Silent 300m³/h) I want to be able to use one lamp for veg and flower. Sanlight is arround double the price. Would you guys recommend me save up some money for Q6W and is it worth?
Setup. Lighting
4y ago
1
3
Solved
BlumenBot
Optimal Veg Light Spectrum?
If you had to pick one light color for veg only, never to be used for flower, what would it be? 4000k, 5000k, 6000k, 6500k?
Setup. Lighting
5y ago
3
Solved
newtextdocument1
LED LAMP DISTANCE
With 600w philzone led lamp what distance i should keep from 2week seedling?
Setup. Lighting
6y ago
1
1
Solved
JonnyKush
Light cycle
hi everyone, I wanted to ask if now that I am at week 6, if it would be better to switch to cycle 18/6? since it broke the ground it is doing 20/4 but I thought that maybe in flowering it needs more rest. thank you all for your help and good growth🌱💚
Setup. Lighting
4y ago
9
4
Solved
MBnVA
Lights
Any thoughts on lights being on 24 hrs?
Week 6
Setup. Lighting
Techniques. Main-lining
5y ago
3
2
Solved
NederGreens
Help de decide tent and light for my setup
I want to so some quick yielts with autoflower. Maximum of 4, with a 100 watt light. - What tent do you recommend (will a 2,3 x 2,3 mars hydro be enough?) - What light do you recommend? (i see many 100 watt lights but some people pushing it with 300 watt lights, i won;t do co2)
Setup. Lighting
2y ago
3
4
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
Shmalevich
the light came on by accident at night
Здравствуйте! Случайно во время сна включился свет в гроубоксе на 10 мин. Слишком ли это пагубно для двух автоцветов? Не станут ли гермафродитами?
Setup. Lighting
5y ago
2
2