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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
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Pichu83
answered grow question 6y ago
For seedlings I always do 24h
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Selected By The Grower
Similar Grow Questions
Solved
kira90
dli 40x40 growbox lamp distance problem
hi guys, I have a ts1000 at a distance of 50cm they tell me to lower it to 40cm but the dli would greatly exceed (60 dli photone) the recommended threshold of 40/45. Having a 40x40 growbox, in your opinion, at what distance should I keep the lamp?
Plant. Other
Setup. Strain - Autoflowering
Setup. Lighting
2y ago
1
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marzadz
Light too far ?
Hi everyone ! I’ve germinated seeds w paper towel method and they been in soil for around 30 hours now, haven’t sprouted yet. I’m worried my light could be a little too far. I have MarsHydro TS600W and it’s at around 40/50 cm from pot rn.
Setup. Lighting
5y ago
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Lillau
Lux pour nos cultures
What is the minimum and maximum lux for germination? For vegetation and growth? For flowering? Thanks for your answers
Setup. Lighting
6y ago
5
5
Solved
versace_grow
Breaking light cycle during flowering
Does breaking the dark cycle after half an hour of dark will stress the plant? I just opened the box 30 minutes after the light went down during the first week of flowering. Can this make my plants hermaphrodite?
Setup. Lighting
Setup. Other
6y ago
3
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Solved
DeepSouthDank
Hey Guys I have just installed 3 x UVB 10. 26W fluorescent bulbs in week 5 of flower. How long should I have these on per day and how close to my canopy? any help/input would be much appreciated homies
Week 10
Setup. Lighting
3y ago
10
5
Solved
DutchDoobie
Advice what lamp for vegging.
High guys, My Jack Herer will move soon to a closet with a 60x60 cm surface. For flowering I will use a 180 watt Hans Panel.
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Setup. Lighting
4y ago
2
5
Solved
Zappdoggy
Light Science
Has anyone watched some Youtube videos by Dr Bruce Bugbee from Apogee Instruments? I find his lectures on lighting to be the most straight forward explanations I have heard yet. I found his vid called "The New 400-750 nm ePAR Range Explained with Dr. Bruce Bugbee" to be eye opening on lighting colours. I have changed my LED's based on a few of his vids. He e
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Setup. Lighting
4y ago
5
3
Solved
Kikiwindsurf
Luz complementaria ? // Extra lighting ?
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
SGNzzz
hi this is my first time here. im going to grow auto hindi kush i got selfmade tent 60x60x160. i got 3 type light one 120w led one econom80w with white light and one 100w yelow simple lamp is this normal for growing? is frlora trio nutrients good for mixed soil ?light18/6 thx
Setup. Lighting
Feeding. Other
6y ago
1
1
Solved
MarkGreenThumb
New Light distance from plant. =D
I got a 200W LED instead of the CFL's. How far should this be from the Plants?? =D
Setup. Lighting
6y ago
2
2
Solved
d0cterstrain
Grow equipment
hey everyone. I'd like to ask if I could get help get grow equipment shipped to me in Africa. I can't find any hydro stores that have all i need that ship outside the USA. I'm in Ghana, West Africa. and I will be grateful for websites or directions to anyone that can help. thanx
Setup. Lighting
5y ago
4
Solved
HAPPY91
Maxsisun PB Grow Light?
Anybody use Maxsisun PB lights for flower?
Setup. Lighting
6y ago
3
Solved
Filippo
And what if I grew a feminized plant with only 12 hours of light a day?
Setup. Lighting
6y ago
3
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
Bandit600
Ist mehr Licht besser!!!!
Hi liebe Grower Kann mir jemand sagen, ob das stimmt wenn man mehr Licht bzw Watt hat, das die Damen schneller wachsen und eher fertig sind bei Auto Samen. Überlege nämlich ob ich mir eine 2 Lampe zulege soll. Danke im voraus 😉
Week 6
Setup. Lighting
5y ago
2
Solved
Rush2112
45 watt Black Magic light?
I’m running a 45 watt led grow light. Instructions say to keep 2 inches from plant. Is this too close? Just don’t want to hurt plants. Thanks!
Setup. Lighting
6y ago
1
1
Solved
Diddes999
Mars Hydro TS1000 ,height and dimmer %'s?
For a single mars hydro ts 1000 does anyone recommend Height and dimmer strength for each stage? Say in an 80x80cm tent with three autos. I've seen so many conflicting heights and dimmer %'s. Big thanks
Setup. Lighting
5y ago
1
1
Solved
Mosquito_Haarlem
Daylight or LED?
Next week will be cloudy. Should I put her under a 600w led or is daylight better for her?
Week 3
Setup. Lighting
6y ago
3
2
Solved
GoldenWeedGrower
Lights type and distance
Lucy is just entered in the pre flowering stage and I'm wondering if I have to use veg (130W) or blom (70W) lights or both ? At which distance the light has to be ?
Setup. Lighting
5y ago
1
1
Solved
Shags212
Best Price to Performance LED growlight
Looking at buying another LED growlight for my flower tent and want to know what one is the best price to performance wise. but I want it to better the one I have already. Wakyme 1200w (210w) 120 LEDs x10w was £65 from amazon. To cover 4 to 5 plants at most
Setup. Lighting
5y ago
3
2