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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
fitinha
Lamp to plant distance: is 40cm enough during flowering phase?
Started with 70cm (afraid to "burn" the leaves), but moved it down to 40cm after checking other grow diaries for auto seeds. Should we keep the lamp ~25-40cm away from the plant from now on? *Lamp is a 300W LED panel (full spectrum)
Week 7
Setup. Lighting
4y ago
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BigBeautifulWeed
300w COB CREE Distance?
I've put my 6 seedlings under a 300W COB CREE UFO light, atm is a 30cm distance from them, I do hope is not too close. I've only a 140cm height and more would be problematic to manage in the long period.
Week 1
Setup. Lighting
5y ago
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tricombo420
HPS 400w Vs MarsHydro TSW2000 cost
Alguém me sabe dizer o quanto menos uma luz LED gasta comparado a uma HPS ? Por exemplo, estou usando uma HPS 400w, e subiu 40€ na conta de eletricidade, se usar uma MarsHydro TSW2000, iria fazer grande diferença ? Obrigado
Setup. Lighting
4y ago
1
7
Solved
DankCityCeo
Help please
Does it matter if I have one white light led and one purple?🤷♂️🏾🙈
Setup. Lighting
6y ago
1
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Solved
GermanGrows
Light height
Hello all I have a mars hydro tsw 2000. I was noticing the recommended height is 24 inches for seedlings. Is this at 100% intensity? That's well over 1000 ppfd by my meter. I thought seedlings could only handle 200-400?
Setup. Lighting
4y ago
1
Solved
1stForBuds
Buds touching light
Hi peeps.. another question but not so much a big problem... my blue cheese's are coming to the end of there 2nd week of flowering.. just 1 problem I have is 1 of my autos is still growing and is now touching my light I can't higher the light any more what can I do?
Buds. Other
Setup. Lighting
4y ago
1
3
Solved
Growador
Led
Hi, i just started my new grow and i wanted to do an update of my led. I want to try so bad the sf 4000 from spiderfarmer. Does anyone of you guys have tried it and what did you think about it? Is is worth it?
Week 1
Setup. Lighting
5y ago
2
Solved
Mining_green
I have a photo i think in with an auto i just fliped to 18 and 6 from 24. Should i leave the veg spectrum on the light with flower or go just flower spectrum
Week 6
Setup. Lighting
3y ago
2
3
Solved
Sup3rNov4
POWER CUT!
PLEASE HELP!! so I turned up to my grow 48 hours after my last visit to find the fuse had blown on my current grow not sure how long it was without light. Will it be ok or will it hermi ?
Week 7
Setup. Lighting
5y ago
1
1
Solved
Ema26
600w hps or LED? Thanks!
Setup. Lighting
6y ago
14
11
Solved
valiotoro
FC-E6500
Im using a 5x5ft,Anyone know how high to hang the MarsHydro FC-E6500 thru seedling/veg stage?diming?
Setup. Lighting
3y ago
1
1
Solved
Tubington9
What percent should i have my ts1000 dimmer switch at?
Swapping a mars hydro ts1000 into my flower tent replacing my tmlapy 1500w. Should i start with the light at full strength? Previous light wasnt dimmable, just hung at recommended heights. Plants are in week 5 of flower
Setup. Lighting
4y ago
8
4
Solved
dauntless
LUX meter grow question
Can someone check out the LUX meter video and tell me how I should be positioning my lights? I think maybe I have too much light on them. My meter says 600 (x100) that puts me at like 60000 lumen. The converter I used put that to 1541.36 umol/s/m2 which is a lot of light already
Week 7
Setup. Lighting
3y ago
1
3
Solved
iwantabike
All day light
Until which week can i have 24 hours of light?
Week 1
Setup. Lighting
5y ago
4
3
Solved
cookingwithninja
even out led bars or keep one 30 inches higher(losing 1/2 par)
Should I even out my 2led bars so one is 24-30 inches higher and both are even, or keep it how it is losing light from one side because light can not go through the top of a light bar? -sharing pars?
Week 15
Setup. Lighting
2y ago
1
1
Solved
Herroqitti
Lights too close?
While trying to figure out why my plant is so dwarf like I realized it might be the height of my lights. They’ve stayed that position ever since installed them. The problem is they’re basically at the ceiling of my box. Is my set up limiting its growth too?
Setup. Lighting
5y ago
3
Solved
Dmelo
Viparspectra p1500 flower?
Anyone use a viparspectra p1500 during flowering? Got this as a cheap intro led and I feel like the plants stay in cottonball phase of flower...brought one outside and now its loaded with buds. Idk if this one has slow genetics or if the light isnt delivering correct spectrum
Buds. Other
Setup. Lighting
4y ago
3
3
Solved
MomoCookie
Heyho So apparently my plant got bigger than I thought. After stretching its only 30 cm from the Mars TS 1000 (Its already on the highest possible position) And I'm running it at ~80% Do you think I can turn it up to 100%? It's always nice to go here Thanks for helping H. G.
Setup. Lighting
5y ago
6
Solved
BullWeedDog
Como debo usar un balastro electrónico 600w regulable??
He comprado un balastro eléctrico lumii de 600w regulable a 250w, 400w, 600w, 600w boost; en que potencia debo colocar el balastro en las diferentes etapas de la planta?? Segun tamaño, etapa o semana??
Other. General questions
Plant. Other
Setup. Lighting
3y ago
5
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Chaweeder
LED lights
Are these LED lights any good? I'm new to growing, I have a 4x8 room
Setup. Lighting
5y ago
2