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
Changing lights
Tryna_grow_Tonya
started grow question 5y ago
Just finished my upgraded grow space, Im going from dual spectrum hps to full spectrum LEDs, I have a couple of plants in flower in the old grow which I'm planning to dismantle, now is changing lights during an issue or?
Solved
Setup. Lighting
likes
GMSgrows
answered grow question 5y ago
No they will be fine just make sure you know the distance from light to canopy for your lights. Cheers
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Mining_green
I have a photo i think in with an auto i just fliped to 18 and 6 from 24. Should i leave the veg spectrum on the light with flower or go just flower spectrum
Week 6
Setup. Lighting
3y ago
2
3
Solved
Hydronaut
Longer Light Cycle - Mid Bloom
Is changing the light cycle of an autoflower from 18/6 to 20/4 in mid flower too stressful? Doing so would bump my DLI enough to keep my existing light through harvest. She sleeps like clockwork but less so now in mid flower. Will she adjust in a couple days to a longer day?
Week 8
Setup. Lighting
4y ago
2
1
Solved
Dylan88
Indoor/outdoor grow aus
Is 4x450 watt LED viperspectra’s enough for a 9x4 tent?
Setup. Lighting
3y ago
3
Solved
Madreefah
MARS HYDRO TS600 LIGHT STILL ON WHEN TIMER SWITCHES OFF
it is a known problem i found 2 forum posts discussing it. Different timers have been tried but it always remains the same. Someone said with a mechanical timer the problem is solved I will try that as soon as I have one. In any case, this is absolutely unacceptable.
Setup. Lighting
5y ago
2
8
Solved
MrJoint
Distância e potência do Led
Para a fase de mudas: A potência do Led em 25% (mars hydro TS1000) e distância de 60cm da planta estão adequados ou posso diminuir a distância para um melhor crescimento nessa fase??
Week 2
Setup. Lighting
5y ago
3
Solved
Motaybongs
Lighting sanlight
What would be the different range of lux needed for each week? Atm running lights in 60% and with distance the lux is around 18000. Since is my first time using led any recommendations? Someone already with experience with sanlight? And its dimmer system? Thank you so much
Week 2
Setup. Lighting
4y ago
3
4
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
4y ago
2
2
Solved
fitinha
Lamp to plant distance: is 40cm enough during flowering phase?
Started with 70cm (afraid to "burn" the leaves), but moved it down to 40cm after checking other grow diaries for auto seeds. Should we keep the lamp ~25-40cm away from the plant from now on? *Lamp is a 300W LED panel (full spectrum)
Week 7
Setup. Lighting
4y ago
3
3
Solved
Mackorodoo
Possible N toxicity or damage
Possible nitrogen toxicity light damage or ph issue one plant wwa is all curled up and barely growin 3 weeks in bi has yellow tips and a few small holes peyote is starting to grow oddly and blue dream seedlings are all iver the place
Leaves. Twisted
Leaves. Color - Yellow
Setup. Lighting
5y ago
2
Solved
arkadan
Led light opinion
Hi growers and strain lovers. I need your opinion about one led light. I will show u photos and what u thinking about this exactly. I can get them from friend for 180 dolares not used. 320w bar style
Setup. Lighting
1y ago
2
2
Solved
Kikiwindsurf
Luz complementaria ? // Extra lighting ?
Debería complementar la luz solar con un CFL 250 watts de Luz blanca ? Tienen 8 horas de luz solar directa ! Should I complement my cannapy with a CFL 250 watts White light ? They are 8 hours Direct sunlight !
Week 1
Setup. Lighting
6y ago
1
2
Solved
Noahbear
Mars Hydro TSW 2000- Height and Dimmer settings for the various stages
I just bought the MARS HYDRO TSW 2000 Led Grow Light - what should be the distance and dimmer setting on seedlings? Then Veg? Then Flower stage? Any advice would be great? I am currently starting week 2
Setup. Lighting
4y ago
6
5
Solved
lytesho
Mars Hydro TSW 2000 Height/Dim
For folks with Mars Hydro TSW 2000 experience. What dim did/are you keeping your light on during weeks 2-3? I have done research and looked at MH data, but I would like tried and true experiences. Current dim is set to 2 notches below 50 at 18in. Thanks.
Week 2
Setup. Lighting
4y ago
2
2
Solved
Enyalici0us
Recomendación LED
Hola Ganjah Family, me podéis recomendar algún panel LED barato para 2x2 metros? Pondríais dos paneles? O uno para los dos metros?
Setup. Lighting
6y ago
3
3
Solved
Hydronaut
Light Scedule to 24/0
I just installed a new light and now have a nice even 1000 PPFD across canopy. If I go to a 24/0 light schedule will she be ok? I started at 18/6 originally.
Setup. Lighting
4y ago
5
3
Solved
Wilsongrowwell
Have I got enough light in my tent ??
I’m growing 2 silver haze from seed in the autopot set up, however I only plan to use 1 optic 1xl cob light. My question is do you think this will be enough light or will I need to introduce another light ? Thanks in advance !
Setup. Lighting
5y ago
1
1
Solved
Wakesk8
SF1000
SF1000 spider farmer best distance for seeding/vegetation/blooming not according to the manual but according to your experience...Let me know
Setup. Lighting
5y ago
1
Solved
EXZELENS
Can I change my autoflowers light cycle withou reducing their yield significantly?
I am having humidity/mold problems and was thinking of changing the cycle so the grow goes off at noon ( currently it goes off at 1am and its winter and gets real cold with 88% humidity). Even if I stress them, it would be better to not have mold than reducing the yield, right?
Other. Mold
Other. General questions
Setup. Lighting
5y ago
1
1
Solved
Malrov
Led Light distance and power question.
I have a Lumatek Attis 300w. For the beginning of vegetation stade, I place it at 60cm of the plants and configure power on 40%. I read that very young plants needs less light in the very beginning of their life but I can't find precisly what distance and power use.
Setup. Lighting
4y ago
2
2
Solved
Bretwalda
Light intensity for x2 SF1000 in a 2x2?
Just wondering what the dimmer should be on for 2x SF1000 in a 2x2, flowers are in about week 3
Setup. Lighting
4y ago
5
3