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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
likes
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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Complain
Selected By The Grower
Similar Grow Questions
Solved
Andreasbudz
Is my 1000watt Led light ok
Hello All, i will be growing 3 plants. Is it ok to use 1000watt led light? Factors: No dimmer Full spectrum What far away from top of plant should it be? Thanks
Setup. Lighting
6y ago
1
3
Solved
The_garden_of_Vixen
Lamp distance
Hello. I have a question about my lamp distance. I’ve changed the lamp to MARS HYDRO 2023 TS600 LED a week ago and a distance to the plant was 18 inches. During this week a plant grew and the distance became 12 inches. I lifted the lamp to 13 inches. What distance I have to keep?
Week 6
Setup. Lighting
3y ago
3
2
Solved
Kenpowarrior
Light question
I grow at 18/6 light now for 2 weeks going into 3rd week. From what week do i change my light to 12/12? They are automatics.
Setup. Lighting
5y ago
3
4
Solved
darbyog
Distance from pot to light during germination
Worried about our light power and distance to the pots, should we be running it at full power with the light higher in the tent or vice versa? Also very unsure about watering amounts in these early stages and is it okay for water droplets to be sitting on the growth? TIA
Week 1
Setup. Strain - Autoflowering
Setup. Lighting
Setup. Seedling
6y ago
4
4
Solved
Ede2300
Grow lights issue
Hey guys, I have rarely used MARS REFLECTOR 96 600W LED GROW LIGHTS. Now on one side the blue spectrum lights (grow) stopped working, the reds and the fan are running. Any ideas on how I can fix it on low cost? Happy 4:20
Setup. Lighting
3y ago
2
2
Solved
guerillagrowereu
Help! I'm in flower week 6,last two days there was 13 and half hours of light,will it be okey or will it start to reveg??? I put back light on 12/12 schedule.
Other. Other
Setup. Lighting
3y ago
2
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
5y ago
2
2
Solved
RemoveYourChains
Light upgrade question
I have a 250W vipar p2500 LED currently. my power budget is ~400W Would you buy a single bigger new light or would you buy 1-2 smaller ones to use with the existing light? What brands/model would you recommend?
Setup. Lighting
2mo ago
7
6
Solved
Fizwig
Enlighten me (Grow light advice)
Hey fellow growers, I'm revamping my grow room and need a new 300W LED light. I'm looking for the best possible light output without breaking the bank on electricity. Any recommendations for energy-efficient, high-performance lights in 2024? Your expertise is greatly appreciated
Setup. Lighting
2y ago
1
Solved
EddyCoKush
Seedlings first timer
How’s it look at day 7? Any recommendations or tips?
Setup. Lighting
5y ago
5
3
Solved
rich_kraft
Light cycle after germination
Is 24 hr lights at this stage too much?? Yield is not a priority
Week 1
Setup. Lighting
6y ago
1
1
Solved
Green_Man_420
Light intensity
My plants have been looking sad for a couple weeks. Tried everything then the other night I turned my light down to 40% giving a DLI of 28 they perked right up with 24 hours. I have now put it up to 60% giving a DLI off 39 will this be ok or should I keep it low. Week 2 flower.
Setup. Lighting
2y ago
1
2
Solved
Capo420
Lighting Change
Okay, I feel like I am asking a lot of questions so let me apologize for that. Lol. So my plants just seem to be behind most people's I see on here.Is it too late to change my lighting schedule? My theory was northern hemisphere gets many days 24hr lighting. Good or Bad?
Setup. Lighting
4y ago
1
1
Solved
Zer0xKira
I purchased two Vipar Spectra 300 LED Lights. I am only using one right now because i was concerned two would be too much for the seedling phase. Should I keep just the one light or Put up Both ? When would be a good point in the plants life cycle to put up the extra lights ?
Week 2
Setup. Lighting
6y ago
1
3
Solved
2x2growing
Light burn or nutrient burn?
Hey guys. The tips of my leaves are starting to turn yellow and I’m wondering if this is a nutrient burn or light burn? I lowered my ppm feeding to about 250 a few days ago and am growing in ocean forest fox farm soil. And the light is an optic 2 running just the cobs at 24”.
Setup. Lighting
6y ago
2
1
Solved
Mosherd7
My grow tent is sitting in my basement, which normally sits at 10C in the winter, so I set the heat in the room to 18C and the LED and 2 fans heat it to 20.4C in the tent. Anyone have a similar setup but using their grow lights as a heat source? Heating a basement is expensive.
Setup. Lighting
6y ago
2
10
Solved
Area77
Is 300watt led enough for 6 plants in 2 gallon pots? (2x2 tent)
I have a 2x2x4 tent with 300 watt leds. I have more seeds coming so will have 6 plants in 2 gallon pots. will that be enough or should I get another 300 watt?
Week 1
Setup. Lighting
5y ago
1
2
Solved
Faegrows
25% TS1000 for sprouting or higher?
I recently started growing in my new HS40 with the TS1000. How high should I put the TS1000 at untill she sprouds? Should I keep her on 25% untill she sprouts or can I push it up a bit? The light is all the way up.
Setup. Lighting
4y ago
3
4
Solved
Grindlife219
Light help
Newbie and in the process of buying everything my problem is figuring out my light situation for my flower tent I’ve been hearing mixed reviews I’m doing a 4x8 flower tent and a 4x4 veg tent initially I was gonna do 4 tsl2000 now I want to do hlg 650r is one Enough for flower?
Setup. Lighting
6y ago
1
3
Solved
Growladyeastmidlands
What light is best for autos
I have 8 seedlings and I am using a waykem 600w led at present but I need help to know what light best to use and when to give them more light I have 3 x 600w hps a marshydro 1600w led and a king plus 1500w led and 2x waykem 600w led can anyone help please
Setup. Lighting
4y ago
3
10