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Back to Grow Questions
How to use a led lamp
Abacus
started grow question 4y ago
How do you use a dimmerable full spectrum led lamp? When full power? When less? Distances?
Solved
Setup. Lighting
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crimsonecho
answered grow question 4y ago
every led is different. different light spread, efficiency, spectrum etc. post which leds youre using then maybe people can guide you in the right direction
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Selected By The Grower
Similar Grow Questions
Solved
InTheSmallSpace
When did the flowering start?
The LED panel, after switching (Ts600 Mars Hydro), stayed slightly on even during the dark hours. I managed to fix the issue, but I'm not sure how to count the flowering period. The plant had shown some differentiation, a few pistils, and a bit of stretching. What do you think?
Setup. Lighting
2y ago
3
5
Solved
Growin_it
UVB early flowering
Using a UVB light for two hours a day early in flowering cycle. Not sure if that is too much too soon? What are the warning sign of too much UVB in early flowering? Cheers!
Week 5
Setup. Lighting
5y ago
4
2
Solved
Floyd
How many Watts needed ? Led or CFL ?
I have a 120x120x200 grow box and only 250w CFL dual spectrum light ( I know it’s not enough, newbie mistake), what would be the right amount of W I need for 4-5 plants ? Led or CFL what should I use ? Thank you !
Week 6
Setup. Lighting
6y ago
5
5
Solved
Screwie
What light should I get for 60x60
I want to get a different light which would be better than. I have Mars Hydro 300W (Classic). I'm thinking of getting Mars Hydro TS1000 which is 138 euro. My grow space is 60x60. Any other suggestions for around the same kind of budget? Thanks.
Setup. Lighting
5y ago
2
3
Solved
Showmethewaytogrowhome
Veg lighting approach? Switching from cfl to hps?
I started my second grow a couple weeks ago with a 130w cfl in my 1m veg cupboard. I’m thinking I will make the switch to a 250w hps soon. I don’t want to overheat the space. Do you think this is a good strategy? I’ll flower the autos in my 1.4m tent with 600w hps.
Setup. Lighting
5y ago
1
3
Solved
tricombo420
Tempo indeterminado
I just got home and I have no power, because of the company, some neighbors are out too, I don't know for how long maybe 4 hours. I have 4 plants in flowering and one about to enter flowering, autoflowering, will it harm them, can they get stressed?
Setup. Lighting
5y ago
1
2
Solved
Melacola
Eclairage fc 1000 mars hydro
Hello my fc 1000 mars hydro I'm at 50 percent growth, that corresponds and the distance is 40, 2 seedlings and 2 really developing in growth I'm not used to it thanks
Setup. Lighting
3y ago
6
7
Solved
GYOweed
Far red Led
Anyone else also use far red for emerson effect and get extra night hours really see a difference too? For sure they seem to be praying a lot harder after setting it up. They sure seem to be finishing faster.
Week 14
Setup. Lighting
5y ago
4
5
Solved
nyalexas
Lamp distance
Does my lamp need to be further away?
Week 5
Setup. Lighting
6y ago
1
4
Solved
SF2000_3x3
24 or 18 and 6
Been running my lights 24 hours a day on my seedlings. Since I am growing autos, should I be at 18 and 6 now? Or should I keep running them 24 for the first couple of weeks to help veg up little before giving rest? This is my 1st time growing autos and 1st indoor grow in 20 yrs
Week 1
Setup. Lighting
6y ago
3
4
Solved
iiswiftt
Auto Light Cycle
Can you switch an autoflower to 24/0 during flower?
Week 8
Setup. Lighting
6y ago
3
5
Solved
WulfBlud
Bloom light on heat goes too high?
When turning on the bloom setting the temps seem to be getting up to 84 on the very top of my tent and around 80-82 by the bud sites. Is this too high? Is there any problem turning the bloom high power switch off to let it cool down for a half hour once or 2 a day if too hot?
Setup. Lighting
6y ago
1
Solved
Stomvi420
DIY Light Solution For Lockdown
Ive begun my first grow using sunlight as its good weather in the uk If and when the weather does change I feel like I need to have a light solution ready! I have around 15m of RGB LED strip and access to most standard light bulbs. Do they have any chance? Sorry if stupid questio
Setup. Lighting
6y ago
3
3
Solved
luvurgarden
Light stress
Hi there GD community, can anyone answer? If I lower the amount of hours of light per day will it help with stress being caused by my grow light being to close to my plant?
Week 9
Setup. Lighting
4y ago
1
7
Solved
growingpepini
direct HOT sunlight on week one?
Should I put her under direct sunlight? Temperature here reaches 32°C-89°F and it's not so windy, Im scared it could burn the tiny plant, I have been keeping both plants under a white mosquito net that makes the light less hot and they get some direct light untill 10 am (see pic)
Week 1
Plant. Other
Setup. Lighting
Setup. Outdoor
6y ago
2
1
Solved
Gorrilla420
New light
Looking for new light but on a budget looking at the ts1000 from marshydro or sf1000 from spider farmer read a lot on them both but finding it hard to choose one
Setup. Lighting
4y ago
6
3
Solved
Growladyeastmidlands
What light should I use please
I have had to scrap all my plants and started again with new seeds autos and I plan to do 10 plants in the tent I have a 600w hps light and also leds 600w and mars hydro 1600w led but with my last grow hermie on me and I don't know why I want to know what light to use now
Setup. Lighting
5y ago
1
3
Solved
JonGrow
Switch or not 12/12 :)
Question : Should i allready go for 12/12 ? nutrient given fro transaction for Autos and for PP grow formula nectar and Armor Si. ( great protection) Thanks in advance . Photos attached
Week 5
Setup. Lighting
6y ago
4
6
Solved
AlanTitchmarsh
Do I need more light?
Will i need another grow light if I want to put a second plant in the tent? tent is 80cm x 80cm x 160cm and currently just have the one plant
Week 3
Setup. Lighting
6y ago
4
4
Solved
Siriuz
Just wondering if adding sunlight could improve it or makes no difference?
Do you still need to give plants sunlight if they have a tent fan and ac plus led grow lights? I really need to know if after 53 days of 6hours of sunlight daily the plant might be used to the sunlight , although I know led grow lights are like a mini sun inside tent but still?
Other. General questions
Setup. Lighting
Setup. Outdoor
6y ago
2
1