The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Horário da luz (Sementes Auto) floração
Grow3rPT
started grow question 5y ago
Acham que devo manter a luz 18/6 ou 12/12? São ao 4 plantas automáticas.
Solved
Week 5
Setup. Lighting
likes
HiddenGreenThumb
answered grow question 5y ago
18/6 or 20/4 there is no need to do 12/12 and will only hurt your yield. Hole this helps good luck
21 likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
sciurcavaliere
Extra lamp?
Should I buy an extra lamp for the evening/early morning to extend the direct light time?
Week 4
Setup. Lighting
6y ago
4
3
Solved
smokinchicken_420
Duda sobre HPS y HQI en espacio pequeño y de madera
Hola amigos, soy nuevo en esta historia de cultivo. Tengo un espacio así: Altura - 1,60cm; Profundidad - 0,45cm; Largura - 0,48cm. Eso es una parte interna del armario de mi cuarto, asi que es de madera. Yo puedo hacer un esquema de lampara HPS y HQI en este espacio? Y el calor?
Setup. Lighting
5y ago
1
Solved
Spicy_lemon
Light recommendations
Which light would you recommend VIPARSPECTRA xs1500 or VIPARSPECTRA p2000. Or ather recommendations around 200€?ps I grow in a room without tint
Other. Other
Setup. Lighting
2y ago
2
2
Solved
versace_grow
Seeds in 12/12
Does keeping seedlings just the first week under a 12/12 light cycle can hurt them? I have some seeds that are not sprouting after 7 days, maybe it's because the outside temperature is too low so I decided to keep them in my growbox with my other flowering plants until they start
Setup. Seeds
Setup. Lighting
Setup. Seedling
6y ago
1
1
Solved
lukasbodo
Lightning Mc Queen
Why do you light a Plant more than 20 hours a day ? Maybe this a stupid Question, but i want it to know my brothers (;
Setup. Lighting
5y ago
5
Solved
AirDuster
Very technical question - LED wattage vs actual power used
My LED is a Phlizon 600w but the power draw is only around 97w at the plug. Perhaps a silly question, but is my diary entry supposed to be 600w or 97w? Looking at other diaries, it looks like yield is expressed as weight/watt and want to be consistent.
Other. Other
Setup. Lighting
5y ago
1
2
Solved
hinterhofgrower
UV LED slowing down growth?
Week 7
Setup. Lighting
1y ago
5
5
Solved
SCHurricane
When to switch GC 4 from Growth to Full Spectrum
At what stage do you switch the GC4 from Growth to Full Spectrum?
Setup. Lighting
4y ago
1
1
Solved
NorthernStar20
Switching to bloom nutes and photoperiod changes?
When should I start giving bloom nutrients and stopping the veg nutrients? Also can I switch my light cycle to 24hrs to increase the temps and maximise my yield? Or will this mess with the plants?
Week 4
Setup. Lighting
Feeding. Schedule
5y ago
4
3
Solved
mushimushi
BUY NEW LED LIGHT 650
what do you think about HLG 650r for next grow? it will be good light for 4x4 tend ? if i buy it need co2 ? its good without Uv
Setup. Lighting
4y ago
5
Solved
Mud868
730nm supplement light, best way of using it?
hey, so I have a Light, with additional 730nm far red LEDs, I can separately turn them on and off, and I am not sure how I should use them, any Ideas? like before lights on, and before lights off or after lights off? I want to do that 13.5hr light cycle in flower...
Setup. Lighting
4y ago
5
6
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
5y ago
2
2
Solved
Toiletmucus
Grow light question
I bought a cheap light by KingLED. It’s only 100 Watts and I’m unsure if it’s enough for one plant. The light has 2 switches, one for veg and one for flower. Should I always have both on since it will be an autoflower?
Setup. Lighting
8mo ago
1
5
Solved
Mel_Macallan
Hi, can anyone tell me if it's normal, or why those lower branches are stretching so much? I have only one 50w cob light. Which apparently produces equivalent to 150watt... Is that enough? I have only one plant and a very small grow box. Thanks for any advise :)
Setup. Lighting
5y ago
4
Solved
Grow4Releaf
General question about raising lights.
Gotta question for what most of you are doing to raise your lights? Currently I've just set it static and move as needed. But I'm curious if anyone has a easier method or know of anything made to aid in the raising of the LED light fixtures ?
Setup. Lighting
3y ago
5
5
Solved
Hou_Stone
HID 600w ?
Actuellement j'utilise 400w dans mon 1m². Vous pensez que c'est intéressant de passer mon ampoule en 600w ? Ou c'est trop pour 1m²? Je vais passer en floraison la semaine prochaine.
Week 6
Setup. Lighting
3y ago
1
1
Solved
Growmancan2
Bulb or ballast?
Just checked my grow and noticed the light was ever so slightly flickering and also my tent was a few degrees colder..anyways I stayed and watched the light for maybe 40 mins and it would go off for 5 mins on for 10 and keeps doing it..
Setup. Lighting
3y ago
4
3
Solved
TheHighentist
Standby lights in grow tent, under dark period/night time
My humidifier has a weak blue standby light. Does this make it impossible for me to use during the plants dark period?
Setup. Lighting
4y ago
3
3
Solved
Newgrow25
clip Led?
Have a short plant, can I add clip led lights to get light to the base of my plant??
Plant. Too short
Setup. Lighting
Feeding. Other
2mo ago
1
3
Solved
Student_of_Science
Trying to get setup right
I know I prob need to get a nicer light and ditch all the crap lights but for now I have what I have. Perhaps after some success I may be able to get a new light to replace all of them. But how far should it be? 2 feet above rockwool cube? And what watts per plant
Setup. Lighting
3y ago
2
2