The Grow Awards 2026 🏆 
Light Schedule
Similar Grow Questions
Solved
CaptGrow
Auto and regular plants in one box.I got an auto plant in a box, waiting for flowering to start very soon. Light schedule 20/4. Now I planted a new photoperiodic seed in a same box. What should I do, keep the 20/4 light schedule before the auto plant finishes and after change to 18/6? Or change it right now?Week 1
Setup. Lighting
6y ago
3
3
Solved
Tikihoofd
Future - upgradesI might have a silly question, but here goes:
I've found some lights I have left in my garage, and since I would like to upgrade my setup, I would like to know if these lights could function as grow lights.
The light=> Osram Highbay HQL LED E40 140W
Thanks!👽Week 7
Setup. Lighting
6y ago
3
3
Solved
rcs8718
Proper height for T5 dual lamps from seedlings during sprouting stageI 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
5y ago
1
1
Solved
girlwhogrows
MarsHydro FCE4800 for a 4x4 grow?Is the MARS HYDRO FC-E4800 480w the best option to use for my 4x4 tent. Will be doing 9 CBD auto flowers as a hobby.
Would you suggest any alternatives?
Really appreciate all the advice and will be making my purchase with the advice you have all given me so far!Setup. Lighting
2y ago
1
5
Solved
2ofyn52aUdHza4Y
Can I use 18 on 6 off during flower when growing autoflowers and using ViparSpectra KS5000 LED at 100% power?I have a tent with a ViparSpectra KS5000 LED lights. If I am growing autoflowers and they are in the flower stage do I have to change the light/dark schedule from 18 on/6 off to 12 on/12 off or will it be ok to keep the lights on a 18/6 schedule since they are autoflowers?Week 4
Setup. Lighting
4y ago
2
3
Solved
hinterhofgrower
UV LED slowing down growth? Sorry previous question without the question!The plant has a rectangular area in the middle where it is not growing as quickly. The difference is almost 10cm. I suspect the lamp. Could it be that the centrally installed UV LEDs are causing this? They should grow more inside because of more light.Week 7
Setup. Lighting
1y ago
10
5
Solved
PlanTings
Hi guys,
My LED light from my tent just stopped working, it might have been the humidity or straight water in there. The new lights might arrive 4/5 days to arrive. Do you think my plants are going to die? you can check my diaries if you need. Thanks for your help.Setup. Lighting
5y ago
2
2
Solved
growbie
Lamp replacingI replaced my current Viparspectra V300 300W led lamp with a Viparspectra V600 lamp
600W. I immediately replaced the new light with the old one. Do you think that switching from 300 watts to 600 can be dangerous for my girls?The conditions remained the same, the temperature andSetup. Lighting
6y ago
3
5
Solved
Cdric69738276
Future panneaux ledSalut passionné de jardinage,je suis en pleine réflexion sur mon futur achat panneaux led.
Entre le FCE 3000 Mars hydro et spider farmer SF 4000 ....
Tout en sachant que j'ai une box 80×80.
Si quelqu'un peut me dire lequel conviendrait le mieux s'il vous plaît.
Cordialement. 🌱Setup. Lighting
4y ago
3
6
Solved
girlwhogrows
best LED light 4x4Best 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
2y ago
26
11
Solved
Pinkpanther
Combination tent/light/potsI'planning to buy grow tent and I want to know the best performance aea/pots/ligth combination. My idea is work with 300cmx300cm tents, led light of 120x110cm (can cover 150cmx150cm), pots of 2 gallons, I want to add co2 and automatic irrigation system.Setup. Lighting
6y ago
1
2
