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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
NoFaceNoName461
Lumatek 600W Power
Lumatek 600W Just started my first Grow ever,Im having some problems on knowing which power to use on each phase of the plant, as on the control for Lumatek 600, I have the option for 25% / 50%/ 75% and 100% wich one would be ideal to use and when? And what about distance?
Setup. Lighting
3y ago
2
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Solved
Dr_Perl_Junior
Sorry hat the question earlier before but I'm new here so I dont know how to undo the solved quesion status. The LED has about 300W and I want to dimm it. not simply turn it on/off. Preferably with some kind of integration in home automation systems like Home Assistant. Thanks :)
Setup. Lighting
Setup. Other
1y ago
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munchiesart
Autoflower kabinde Photoperiod yetiştirebilir miyim?
Autoları (3X) yetiştirdiğim kabinde photoperiod bitki yetiştirebilir miyim? Işık döngüsü şu an 20-4. Bu autoları hasat edene kadar photoperiod olan bitkinin veg' de kalmasını sağlar mı? Yani photoperiod bitkime Veg dönemi için 18-6 yerine 20-4 ışık periyodu uygulayabilir miyim?
Week 1
Setup. Lighting
4y ago
3
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Solved
79jjsmith
Lighting hight question
I am a new grower thos is a new light i had a cheaper smaller light before i lost the manual from mars looking for the proper hight and power % for each stage thank you in advance
Week 1
Setup. Lighting
5y ago
1
2
Solved
guerilla
Lifespan of led grow lights?
Lifespan of LED quantum boards? Hi I'm looking for anyone who has first hand experience with the lifespan of the led grow lights. I'm not looking for the manufacturer guidelines. Just anyone who has noticed any difference in performance from the LEDs over time.. 💚
Setup. Lighting
2y ago
6
4
Solved
hollyhustler
I have several question about my setup for the first week:
- is the distance of the light to the plant ok? - is the intensity of 25% correct? - should I remove the seed coat or should I just let Mother Nature do it, eventually it will be blown up..
Week 1
Setup. Lighting
5y ago
3
3
Solved
MarkGreenThumb
NewLight for the Girls, Distances advice..
I got a New MaxiBright 200w LED from Daylight. with an adjust 20%-100%. How far should this be from my girls?? at this stage, and During general Veg and Flower?
Setup. Lighting
5y ago
2
Solved
kevgrow
Day 3 - Seedling Stage - how much light is needed
First Time Grower - Day3 Seedling Stage Using roots organic soil and Mars Hydro 1000,, im not sure what strains they are, hoping one is a female 1- how much light is needed at this stage? Currently set at 355 Lux x100 2- should i set it to 18hrs / 6hrs or just 24/hr of light?
Setup. Lighting
5y ago
2
2
Solved
GlockAbuser
Nutrient burn, Light burn, or Phos Def? red stems purple bruises,
Noticed red lines leaking red into the leaves with purple bruising, and the starter bottom leaves seem to be turning yellow, with the leaves above looking dark green with spots. Is this signs of light burn or nutrient toxicity? And is it lacking phosphorus or just the strain gen?
Leaves. Color - Dark-purple
Plant. Stem - Red or purple
Setup. Lighting
2y ago
3
4
Solved
Bezenga
This ligth is enough?
Im using a naked led cob cree 60w full spectrum. My tent is a 60x60x1,40. Im gonna trying grow 4 plants. This ligth is enough?
Setup. Lighting
3y ago
9
8
Solved
Sheldor
Hight Problems
I’ve got 3 plants in my tent, but they’re all different heights. To compensate, I’ve hung my light at an angle, so one end is closer to the smaller plants. My question is: Does this help, or am I better off keeping the light level? Any tips for dealing with uneven plant heights?
Week 5
Plant. Too tall
Setup. Lighting
1y ago
2
6
Solved
ngenius
What kind of specs does my light have??
Hey Everyone , I recently bought myself an LED grow light for about 100 euros. It is called a MASTERGROW 600W led Full spectrum. Does anyone have the same light and know if these have decent specs on them ? i cant really find allot of information about them online. Thanks !!
Other. Other
Setup. Lighting
4y ago
2
2
Solved
eppeep42
Height Difference when growing different strains in one tent
Im afraid my Gorilla will outgrow the Lemon Cherry significantly in height, will that be a big problem? or will the lemon cherry maybe catch up a bit in full flower so the difference in light intensity wont be that big? both same age. Spiderfarmer SF-1000 (2024 Version)
Week 4
Plant. Too short
Plant. Too tall
Setup. Lighting
1y ago
5
4
Solved
TheObserver
Wrong power cable in my LED light: still light when switched down off.
Have you ever made this mistake? My second harvest was someway worst then my first. Sure I did some watering mistakes but during my chores in the room and in the tent, I found out. I used a random power cable on my PAR LED lamp so when It turned off still had some light on. Bang!
Week 16
Setup. Lighting
10mo ago
3
8
Solved
NegotiatedBubble
Should one decrease light intensity during early flower?
Should one decrease light intensity during early flower, and then gradually increase again? I see DLI/PPFD recommendations for flowering in general, but not for the different stages of flowering.
Setup. Lighting
3y ago
4
Solved
DanDec
Switching light schedule for an auto and Phototype!
I'am growing together an auto and a phototype with 20/4 light circle. For my phototype is about time to change light schedule for flowering, will my auto be badly impacted by switching to a 12/12 light? Or should I move every day (same place but no light) the photo for the night?
Setup. Lighting
5y ago
2
3
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torgul2000
Led light dangers on the skin
What about arms protection under les lights ? I wear special glasses but as I need to manipulate plants should Onwear long sleeves shirts ? What about that kind of light on the skin? I use 600W dimmable lights Thanks growers
Setup. Lighting
3y ago
5
5
Solved
bigdaddyjay73
Going from flou
I have my seedlings under a 4-bulb 6500k fluorescent light fixture at an 18/6 light schedule. When would be a good time to introduce the plants to my Black Dog Phytomax 1000W lamp?
Week 3
Setup. Lighting
5y 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
Kdesargrow
Information on led grow light.
I am growing one plant of OG KUSH AUTO strain from Nirvana with light setup of 200watt of white led flood light and 300watt of led grow light. Is this much light enough for a single plant? I am using soil as grow medium.
Week 1
Setup. Lighting
5y ago
4