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Back to Grow Questions
Light hours and luxes?
iwantabike
started grow question 4y 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 4y ago
For seedlings I always do 24h
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Basementgrow05
Too much light ?
So started my second run and got everything dialed in but this time I’m running with spf-1000D and the normal spf-1000 is that too much light for the plants that would slow them down ? Together the lights should be around 200w
Week 3
Setup. Lighting
4y ago
2
2
Solved
Terp1
variable Lichtzyklen bei Autoflowers?
Idee für nächsten Grow. Hat jemand schon mal versucht bei Autoflower die Lichtzyklen anzupassen um die Pflanze auf voller Leistung zu fahren? Meine Idee ist die Beleuchtung während des Grow anzupassen auf: Seedling 24/0, Veg-Phase 18/6 und späte Blüte 12/12. Input? Erfahrungen?
Setup. Lighting
2y ago
3
7
Solved
Melacola
Eclairage fc 1000 mars hydro
Bonjour ma fc 1000 mars hydro je suis en croissance à 50 pour cent sa correspond et distance 40, 2 plantules et 2 développer vraiment en croissance je suis pas habituer merci
Setup. Lighting
2y ago
6
8
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
FlavorzChaser
Building A Grow Light Advice Help
Has anyone had any experience with building a led board and sourcing components out I was wondering how difficult it might be I understand the basics I would like to build something like in the picture the migro but a little smaller any advice would bemuchappreciate
Week 3
Setup. Lighting
5y ago
3
2
Solved
romi27
Lighting coverage
Will my viparspectra xs1500 have enough coverage once these plants get larger? Or will I need supplemental lighting? And if I do need more, am I better off getting the larger model, or just getting another identical unit so that I have 2?
Week 4
Setup. Lighting
4y ago
2
2
Solved
Autogrowz
Light distance for seedlings
I have a 300W Mars Hydro light LED. My plant just crawled out of the dirt a few hours ago? Is 23 inches a good distance away for the light? Thanks!
Setup. Lighting
5y ago
2
2
Solved
izzy89
Mars Hydro FC4800 vs FC-E4800
FC4800 = 2016 samsung diodes| 2,8 µmol/j |1347µmol PPE -- FC-E4800= 2646 bridgelux diodes | 2,7 µmol/j |1328µmol PPE Both are 480watt lights... Is there a difference between µmol 2,7 and 2,8 when it comes to yield? Is the FC4800 worth the extra money? Doesn't cost much more
Setup. Lighting
3y ago
5
3
Solved
Tubington9
Should I dim my TS1000? Ts1000
When using two lights in a small space should I be worried about to much light? The plant is mature and is about to transition to flower, I’m just curious what is too much if any. The TS 1000 is dimmable the sf1000d is not. Lights are 18” at the moment
Setup. Lighting
3y ago
5
6
Solved
Tubington9
Opinions on FC-E 3000?
What’s everyones experience with the mars hydro FC-E 3000? Wanting to upgrade my 3x3 tents light, probably move my ts1000 into the smaller tent with my sf1000d
Setup. Lighting
4y ago
1
2
Solved
Popeofdope
Cmh light turned off 2 times in 24 hours. Its on 18/6 and its a vivosun branded one. I dont know where to start if its a. Power issue or somthing else
Setup. Lighting
5y ago
1
Solved
Waxyne
1rst week flowering
Hi guys ! My girls are starting there first week of flo, and unfortunately my led panel that I order for the bloom hasn't arrived yet... Can they stay under a cold light for a little more ? Is it gonna affect them ?
Week 6
Setup. Lighting
5y ago
4
3
Solved
DeepWaterGrower
LIGHT SPECTRUM, is that a good one for growing cannabis?
Hi guys, in the future I plan to upgrade from the current 2x2 box/150w LED. I was thinking of a 4x4 area with 500w LED. I came across an interesting 500w led lamp for quality/price and this is the spectrum chart, does it seem suitable for growing cannabis?
Setup. Lighting
3y ago
2
2
Solved
AutoGOAT
Distance
Hey, i just bought this thing, what sould be the distance between the light and the plant?thanks
Week 4
Setup. Lighting
5y ago
6
3
Solved
PoleKat
Looking for someone to look at my pics and give me advice on ventilation for mini grow room. Also if my plants look good for day 3? Any tips? Thanks!!!!
Hi, wondering is you guys could look at my enclosure and give me some ideas as to when and how I should provide some air circulation to my seedlings? I plan to keep them in here for the next couple weeks like a small grow room. Also, do they look happy for day#3? Advice? Thanx
Week 1
Setup. Strain - Autoflowering
Setup. Lighting
Setup. Ventilation
5y ago
4
2
Solved
marzadz
light on humidifier :(
okay I think I might have fucked up (lol). I bought a new humidifier. And I didn’t realize it has a light in it. And i run it in the ten over the whole night. It’s not powerful at all but it’s also not just a little led. Do u recon my plant will be okay. I covered it now.
Setup. Lighting
4y ago
2
2
Solved
Johncann
Gorilla
Anyone do gg under 600w dual spectrum hps?
Week 8
Setup. Lighting
5y ago
2
2
Solved
KINGT88
Lighting, to early, flowering, can I stop this or no. New grower
Might be dumb but eh ohwell 1st time grower. Need to know for my next seeds I plant.. So I messed up by putting my plants to early on the 12/12 schedule, now they are starting to flower. Super short! No way I can stop it right? To get more out of my plants?
Buds. Too few
Setup. Lighting
Techniques. 12-12 from seeds
3y ago
6
4
Solved
laberg
Light burn
2 fairly new leaves at top (opposite ends) seem to show signs of light burn (yellow tips). They recently turned a bit more green but the tips are still quite yellow. Light = 13 inches away. PAR 370 at center, 350 on sides. DLI=~ 22.5. CO2 bag in tent (at about 620). Thoughts?
Week 5
Leaves. Tips - Burnt
Setup. Lighting
2y ago
2
2
Solved
B0AGL
Low Watt LED
A friend want to start his first grow and has not much budget. I see that you Guys allways use 200+ Watt LED lamps. Why cant he use like a 30 Watt LED lamp?
Setup. Lighting
5y ago
2