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Back to Grow Questions
Light hours and luxes?
iwantabike
started grow question 6y ago
Can i use 24 hours of continue light, its a 9watt cfl, i used lux meter app and it says that seedlings are receiving 50000 lux, its that okay?
Solved
Setup. Lighting
likes
Pichu83
answered grow question 6y ago
For seedlings I always do 24h
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
CG420
Crecimiento o cambio a floración ?
The cabinet has been off for 12 hours by accident, should we start flowering now or is it still too early? The plants are 30-35cm tall and have a good branching system... I await your response 💚💚
Week 4
Setup. Lighting
5y ago
5
5
Solved
Chanardo
Distante between LED and plants.
The distance between the LED and the plants is 53 cm. Is it ok for the first week? I've read that a short distance in this stage is good to produce a not so tall plant.
Setup. Lighting
4y ago
2
1
Solved
girlwhogrows
MarsHydro FCE4800 for a 4x4 grow?
Is the MARS HYDRO FC-E4800 480w the best option to use for my 4x4 tent. Will be doing 9 CBD auto flowers as a hobby. Would you suggest any alternatives? Really appreciate all the advice and will be making my purchase with the advice you have all given me so far!
Setup. Lighting
3y ago
1
5
Solved
JoeGrowsGas
ADVICE NEEDED : My grow light has just gone out! And I don’t have a backup while waiting for my replacement what should I do the light has been out for 24 hours, it is not that bad outdoors and quite sunny so I’ve moved them out there. But have now read that it can hurt them!
Week 4
Setup. Lighting
4y ago
4
2
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
iopiopiop
Is the light far enough away?
Id like to make sure I'm not wrong in positioning the TS600 60cm above the rockwool cubes for germination.
Setup. Strain · Autoflowering
Setup. Lighting
Germination. Other
6y ago
1
Solved
ngenius
What kind of specs does my light have??
Hey Everyone , I recently bought myself an LED grow light for about 100 euros. It is called a MASTERGROW 600W led Full spectrum. Does anyone have the same light and know if these have decent specs on them ? i cant really find allot of information about them online. Thanks !!
Other. Other
Setup. Lighting
5y ago
2
2
Solved
Nurse
Light distance
Hello, my new lamp arrived today Spider Farmer SF1000. What is the best distance from these plants? It was stated in the manual between 18 and 24 inches
Setup. Lighting
6y ago
1
1
Solved
Goldenbags
Contemplating putting 2 plants outside. I have 8 in a 3x3 with Mars hydro tsw2000. It’s pretty tight in there. What do you guys think? Is 8 too many for the size and light? Or should I just leave them as is? I think the the pots are 3 possibly 5 gallon.
Week 4
Setup. Lighting
4y ago
8
8
Solved
Killab1405
Light distance and intensity
I have a marshydro tsl2000. What distance and intensity should I have for these five darlings? Don't they look wonderful?
Setup. Lighting
5y ago
1
1
Solved
Blueboy2019
5 hr power cut in flower
This morning my lights come on as they should but then I had a power cut for 5 hrs after the light been on for 1 hr in the morning. I'm 2 weeks into flower on a 12/12 ... What should I do? Start a fresh 12/ hrs so change up my timer or just leave them as their are??
Setup. Lighting
7y ago
3
Solved
andy4
Question regarding increasing PPFD
to increase PPFD should I bring the lights closer the the plant or increase brightness? Thanks in advance :)
Setup. Lighting
3y ago
7
3
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
chronicon
using both veg and bloom switch toggeled to on with led light during flower question
i was watching a video on youtube and the person was using an led light which had separate toggle switches for bloom and veg and during flowering of autoflowers he had both switches on and was wondering if that is better to have both on and if so is it only good for autoflowers?
Setup. Strain · Autoflowering
Setup. Lighting
4y ago
6
5
Solved
Tubington9
Anyone affiliated with Mars Hydro? Very disappointed with customer service
My TS 1000’s controller/driver crapped the bed. Contacted customer support, told them the issue, they diagnosed based on videos i send, and was told they were sending replacement parts. 2 weeks later, no email confirmation and no reply to my previous 2 emails sent a week apart.
Setup. Lighting
5y ago
1
1
Solved
Killerbubu
Extrator para novo grow
I have a 60x60 grow ready to start. My question is? What ventilation should I use? Is it good to have something certain from the beginning? The light is the Smith 150w LED.
Week 1
Setup. Lighting
5y ago
2
5
Solved
PooBrainStoney
Can someone please show me a proper setup guide for hanging grow lights?
I recently purchased a Vivosun Smart grow system, but this is my first tent and the booklet just says "tie light up top" with a ratchet hook system. I wont be able to adjust height without tons of extra work, can someone assist me?
Setup. Lighting
4y ago
3
Solved
The8thChevron
Supplemental light for flowering?
I have a 300w quantum board LED. Its a Mars Hydro TSW 2000. Should I add more light of a different type for flowering or should I just run the LED alone? I've heard people mention the UV-B lights.
Week 2
Setup. Lighting
6y ago
7
6
Solved
Vegas_Kind_Budz
Is the light too big?
Im a new grower, seeds haven't even arrived yet . Is this light going to be too much for this set up? Trying to get my set up to stay less than 80°. Skygrowpard 2400w Not sure of the true wattage bought secondhand. Tent is 60x48x24 thank you guys.
Setup. Lighting
7y ago
3
Solved
BullWeedDog
Hps o led??
I have a space of 1x1x2m, how many LED lamps would I need for this space and which ones do you recommend?? If my ambient temperature is very low, down to 5ºC, would it be good to use LEDs or should I stick with HPS??
Other. General questions
Setup. Lighting
4y ago
1
4