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Back to Grow Questions
When to put the light on?
Panzora
started grow question 5y ago
Hey there, Do you need to put the light on the pots directly after you planted the seeds in the ground? Or do you need to wait untill they poke true the ground and then put the light on them?
Solved
Setup. Lighting
likes
Aquemini
answered grow question 5y ago
Plant can't absorb light till leaves open. But I leave the lights on anyway because I don't mind paying my electricity bill.
1 like
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Selected By The Grower
Similar Grow Questions
Solved
Albgrow
Problem with light in veg stage
Hello guys! I hawe a problem! I have 1700w in my grow room and today i saw the 1000w its off. I im veg stage, 4 week. Maybe its off for 6 hour.
Week 4
Setup. Lighting
6y ago
2
2
Solved
MyBrainHurts
Should i increase nutes? is 27 celsius too high?
Should i be increasing the nutes? And anyone had any experience with air-cooled reflecters, are they any good? temps wont drop below 27 celsius :(
Week 6
Setup. Lighting
Feeding. Schedule
6y ago
3
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Solved
Taito
Cultivo con SF1000 LED Grow Light Full Spectrum
How many plants can I optimally grow with the SF1000 LED Grow Light Full Spectrum in 3-liter pots? And in 20-liter pots? Thank you very much for the answers.
Setup. Lighting
6y ago
2
2
Solved
SAC87
Light timer Problem
Hey Growers. So I made a dumbass mistakes…..for the last 18 days I have had my light timer set for 12 hrs 15 mins on and 11 hrs 45 off. They are looking good and budding up. I’m wondering is that close enough to 12/12 to have my day 1 flower be true for accuracy sake. Thanks
Week 7
Setup. Lighting
4y ago
2
6
Solved
kurtzweil
Leaves "praying" after lowering the lamp
I am in week 4th of flowering Laughing Buddha, 220W LED ~60cm from tops. Today I have lowered the lamp and the leaves started "praying", on one (higher) plant the other, mostly-indica Holy Punch seems unaffected. I am curious, is there too much light or sweet spot and it's good?
Leaves. Other
Setup. Lighting
6y ago
1
Solved
SoulGrownBotanicals
Photobio mx680
Does anybody know height and intensity recommendations for the photobio mx680? I just received won from a contest and for the life of me cannot find the manufacturers recommendations.
Setup. Lighting
4y ago
2
3
Solved
GEESTGROW
How to dim a Sansi LED bulb
I have a 10W Sansi LED bulb for my grow, but I would like to be able to dim the light since, having limited space and needing to place it close to the plant, I'm having issues. (https://www.amazon.es/SANSI-Bombilla-Espectro-Completo-Invernadero/dp/B08P1RL7KC/ref=asc_df_B082PSBP68
Setup. Lighting
1y ago
6
6
Solved
TheHappyClique
Supplemental lights needed
Hi all just trying to get some group feed back am about to by a suplimental led for my 120x60 space currently have 2 100w full spectrum LEDs and am looking for a longer strip type led to cover the length of tent or something to fill the middle space ? Suggestions
Setup. Lighting
5y ago
2
2
Solved
buddhi_coop
Gavita Light Dimmer
Is there a dimmer for the Gavita Pro 1700e LED grow light ?
Setup. Lighting
Setup. Seedling
Setup. Other
5y ago
2
2
Solved
ohighoan
Light came on for about 30 seconds about 3 hours into the dark cycle
So Im 3 days into 12/12 and I bumped my timer last night and my light came on suddenly during the dark cycle. I immediately shut it right back off. Was I wrong in shutting it back off right away? Should I be worried about anything?
Week 11
Setup. Lighting
Setup. Other
4y ago
1
Solved
Hustlepuff
Light distance affect plants height
Hi, does my light distance can affect the plants height? I find my plants are having short spaces between nodes (marshydro sp150), Thanks much! 👺
Week 2
Plant. Spaces between nodes
Setup. Lighting
3y ago
7
7
Solved
Papa_T
When to switch to red?
Hey all growmies. I have a 420 FB Purple Punch going. She’s three weeks old tomorrow from sprout. I’ve had her under blue light so far. When do you reckon I should switch to red spectrum light? What do you guys think?
Setup. Lighting
2y ago
3
Solved
Rush2112
45 watt Black Magic light?
I’m running a 45 watt led grow light. Instructions say to keep 2 inches from plant. Is this too close? Just don’t want to hurt plants. Thanks!
Setup. Lighting
6y ago
1
1
Solved
HierroYOlivia
New led light
What do you think about my new led light 480 watt?
Setup. Lighting
5y ago
1
1
Solved
ax001
Led grow light
Hi, I'm going to plant 3 "Think different" and I wanted to know what led lamp to buy. I'm between: -2x COB's of 200W each (LUMERI COB200) -1 spread panel of 500W. (LUMERI SQ500) First time grower and starting to learn*
Setup. Lighting
6y ago
2
3
Solved
Biggy2k20
Mars hydro 2000w genuine or not?
Hi, I have just purchased a Mars hydro 2000w and since there are a few fakes about I was wondering if anyone knew by looking at this image that it was genuine? It was purchased from https://marshydroled.co.uk/
Setup. Lighting
5y ago
2
1
Solved
GhettoStyle
friends, help me with advice what kind of yellowness on the leaves is what this can be!?
this is a clone that moved into the system a week ago! Now he has advanced GMB 1.2 (EC) pH 6.1 fertilizer
Setup. Clones
Setup. Lighting
Feeding. Deficiencies
4y ago
1
1
Solved
Lil_room_4_my_plants
What's the ideal height for the LED lamp at this vegging state? SHould I water them with less water more frequently or more water less frequently? Tnx for any help!
Week 3
Setup. Lighting
5y ago
3
3
Solved
anatoliangrower
lighting plan
hello dears I need suggestions for lighting in the new plan. Do you think there would be a difference for improvement in turning off the lights day or night?
Setup. Lighting
5y ago
1
3
Solved
chronicon
using both veg and flower switched to on with led during flower stage?
i asked this question once before where i had heard some people when they have a led with individual switches for veg and flower where they have both set to on and the answer came back that it is best to do this but my plants are almost 7 weeks and others here have a lot more bud
Buds. Not fattening
Setup. Lighting
3y ago
1
8