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Back to Grow Questions
Light hours and luxes?
iwantabike
started grow question 5y 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 5y ago
For seedlings I always do 24h
1 like
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Selected By The Grower
Similar Grow Questions
Solved
88kasanova
GTMAR 1000watt full spectrum light
I bought a gtmar full spectrum 1000 watt light off amazon, does it really put off 1000watts?? My 4 plants look great except I can tell that some of the under foliage isn’t quite getting enough light, I’m doing some LST.
Week 5
Setup. Lighting
5y ago
2
5
Solved
c2_farms
hps to led switch in mid flowering
hi... is it ok to put a plant under migro 100 (led cob) that was in a crowded 600 hps tent? the small autoflower is struggling alongside other big boys in a 120x120 tent and i have a 60x60 that has migro in it?! its on day 50 i want gladly like to hear it from people that did it.
Week 5
Setup. Lighting
5y ago
1
1
Solved
iopiopiop
Not enough light? Help?
I think my flower is not getting enough light. How can I make do with the light on my balcony (that only hits the plant from the side for about 6 hours a day). Any tips or tricks for increasing yields in my "lightless" situation? (Growlights are out of the equasion due to space)
Week 6
Other. General questions
Setup. Lighting
5y ago
3
3
Solved
420chris
Lampe gesucht
Gibt es gute LED Lampen für um die 400€?
Week 2
Setup. Lighting
4y ago
1
4
Solved
Mooncat
Installing of a Second diffrent Lamp.
Any downsides to installing a second (bit weaker) lamp in your Tent ? Apart from a bit more Temp. of course. Thinking about diffrent Lightspectrums and such.
Setup. Lighting
5y ago
1
1
Solved
growbie
light dilemma
When shine only with flower light, i reach 20,000 lux units in the buds area. But when i turn both lights on at once, both the growth and bloom spectre, the lux units increase to 65,000. I wonder if the extra growth light will affect the flowers that are already blooming. Thanks.
Setup. Lighting
5y ago
3
2
Solved
rcs8718
Proper height for T5 dual lamps from seedlings during sprouting stage
I now have my seedlings in solo cups and they are just breaking the surface, what is the height I should have my T5 twin lamps from the top of the cups? I have it currently at about 4 inches from the top of the cups.
Setup. Lighting
4y ago
1
1
Solved
JacareGrows
Led to hight?
Hi everyone. I'm thinking that the Led Light is to high, its around 70 cm from the plants, should I lower it down up to 50/55 or leave like that until Bloom, and on Bloom put it more close? Some more help on the grow its always appreciated. They seam really beautiful by now 😃
Week 2
Setup. Lighting
5y ago
4
2
Solved
GreenHillZone
PAR/PPFD and light height
PAR/PPFD: does light height matter if your PPFD is in the right range? Another way to ask: is 300 PPFD @ 2 feet the same as 300 PPFD @ 20 feet, or are there other factors involved? (assuming heat, C02, all other non light inputs equal)
Setup. Lighting
4y ago
4
2
Solved
GreenGuerilla
Will the change from indoors to out trip my plants into flowering?
Hi, Guys, I plan to move my plants outdoors next week. Will the change in the light schedule trip them from veg to flower? I really don't want this. They're currently @ 3 weeks on 18hrs indoors and outdoors they'll be getting 11hrs direct sunlight. Also, they're photo's not autos
Week 3
Setup. Strains - Photoperiod
Setup. Lighting
Setup. Outdoor
5y ago
6
6
Solved
IchBinDerAmpelmann
Lighting cycle for VEG stage. Is 24x7 OK?
Hi, Should I use the VEG lights 24x7 from the time I plant my seed until it's ready to bloom, or would something like 18 hours on and 6 hours off make more sense? Is there a "best practice" for veg lighting? It has worked for my first 3 grows. VIPARSPECTRA 600W LED Thanks, Mr.STM
Setup. Lighting
2y ago
7
7
Solved
EXZELENS
LED options
So, I have a 90x90 tent and one TGL Star 60W LED and a Mars Hydro TS600. I´m looking for another light to complement the grow, my go to would be the TS1000, but I would like to know what would you buy with 150 euros? Thanks in advance!
Setup. Lighting
5y ago
3
3
Solved
Indicaman2015
Viparspectra P2000 height and intensity
For those that have experience with the light I'm using, Viparspectra P2000, how high and what intensity percentage should I have it? Currently I'm at 21" at 75% power. Also, I run it 24/7. I have an app on my phone and it says my DLI is at like 56 which seems way too high.
Week 3
Setup. Lighting
2y ago
5
5
Solved
kette420
Mars Hydro TS1000 dimmer
At which height and at what percentage of light (using the dimmer) should I use the Mars Hydro TS1000 during this grow?
Setup. Lighting
5y ago
4
Solved
ItsGrowingOnMe
1 inch seedling under a humidity dome sprayed with water in a 24x24x36 Vivosun tent. I’m using a mars hydro ts 600 watt led which is 21 inches above my seedling (small tent). Do I downgrade to my 150 watt ufo light until I can do LST? This mars led is definitely warming up things
Setup. Lighting
4y ago
3
5
Solved
heythere12345
Should i lower the lamp?
It looks kinda stretched
Setup. Lighting
3y ago
1
2
Solved
girlwhogrows
best LED light 4x4
Best LED grow light for a 4x4 Could anybody please suggest which LED light they would recommend for a 4x4 grow. Willing to spend around £500 maximum as I really want to invest however most videos on YouTube are marketing their own. Really appreciate your advice. Many thanks!
Setup. Lighting
1y ago
25
12
Solved
Padrino
FCE-4800 at 100%???
does anyone have a fce-4800 by mars hydro and possibly have it in a 4x4 tent? Do you crank that bad boy up to 100% in flower or is it too much?
Setup. Lighting
2y ago
1
2
Solved
Rixx2k
Niello 300w how high hang in Vegi ?
Hello lovely Grow Community. I have a niello 300w and do not know how high I should hang it in the vegie phase can help me someone who has experience with the lamp ? Greetings Rixx
Setup. Lighting
4y ago
1
1
Solved
FIRSTGROW2021
Sf1000
Hey can somebody please advise me what settings and height I should have my sf1000 on please at all stages 😊
Setup. Lighting
4y ago
4
2