Back to Grow Questions

Lightning timeline for auto flowers under LED

torgul2000started grow question 4y ago

For the automatic varieties (Skunk #1 Auto, Hindu Kush Auto and Pure Power Plant Auto), what is the best technique for growing under LED in terms of light time: 12/12, 18/24 or 20/24?

Open

Setup. Lighting

1 like

Answer

ernest_twwganswered grow question 4y ago

I've been growing my Bruce Banner auto at 18/6 the whole time and it has been rocking socks.

1 like

Complain

SlowpokeFuegobudanswered grow question 4y ago

Hi! Make sure you got the right DLI, that is the total amount of light they get per day. So stronger LED can be 18h and have the same DLI than a weaker one over 20h. To take a look at the climate in the room is a great idea! Happy growing!!

1 like

Complain

Hashyanswered grow question 4y ago

During the colder months I Run 20/4 as temps get low with lights out, during warmer months I go 18/6. That's all the way from seed to harvest. As organoman said its best to let them have a rest period.

1 like

Complain

Organomananswered grow question 4y ago

18 hours of light and 6 hours of dark. All cannabis planys NEED sleep to finish their photosynthesis cycle and have a correctly functioning metabolism. Cannabis can only grow so much during any one 24 hour period and this growth tops out at around the 18 hour mark, meaning running your lights any longer than 18 hours is basically a waste of electricity. NEVER grow at 24/0!

1 like

Complain

GrowingGrannieanswered grow question 4y ago

18/6 or 20/4

1 like

Complain

Similar Grow Questions

Solved

Agricola_Borealis

Lamp for houseplants?My neighbours fiancé yesterday evening dropped by and gave me the lamp on the photograph, I have no users manual, but I understood it is for houseplants. I wonder if it is of any use and how I can use it. Whenever the sun shines I will put the plant in the sun of course

Setup. Lighting

4y ago

2

3

Solved

Espectro de luz en automáticas When should I switch the growth bulb to flowering? I have some outdoor autos that I give extra lighting to inside the house when it's night. The bulbs are 55w CFL neons, and so far (5 weeks) I've always used the CFL with the growth spectrum.

Setup. Lighting

3y ago

2

Solved

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

6y ago

1

2

Solved

Sativa_Juice_Grows

Lighting Question If anyone has a Mars Hydro tsw2000 light can you tell me what the function of the two switches are? The only thing i could find was something saying that one is better for veg and one is better for flower. Can anybody tell me which one is which? cant find much online to help.

Setup. Lighting

5y ago

1

2

Solved

WavyyyieFlux420

Putting two lights in a 60x60 worth it?fellow growers, I have at the moment 2 150w lights and i was wondering for flowering it would be any good to put the extra 150w light that I have (it is a 60x60 so small space to tuck in 2 lights but if it is really worth it i sure I'll find a way). let me know what you guys thin

Setup. Lighting

8mo ago

3

4

Solved

Replace my hid Hi guys I'm looking for a good led lamp to replace my old 600w hid For about 100-150 €.. what do you recommend?

Setup. Lighting

6y ago

2

3

Solved

LeastExpectedGrower

ViparSpectra XS 1000 (x2) vs. HLG 100 RSpec (x2)Thoughts on VS XS 1000 (x2) vs. me buying HLG 100 RSpec (x2)? They'd go to either side of my HLG 225 in a tent that's 2.75' deep and 5' wide to 'fill the wings' more evenly. Thoughts on build, safety, quality & heat? HLG 100RSpec:0 / XS1000: (on sale this weekend)

Setup. Lighting

5y ago

1

3

Solved

What’s up guys me again😂 I’ve got my hps up and running and I’ve got the temperature under control by having my fan blowing directly at the light and I’ve added a oscillating tower fan. How can I keep the temps up when lights go off? Many thanks!

Other. Other

Setup. Lighting

Setup. Ventilation

6y ago

3

5

Solved

Veg and bloom switch the rest of the way?These girls are 12 days old, I'm jus wondering when I should turn both veg and bloom switch on, I'm new so looking for input my last grow I waited till the 4 wk I was going to flip both switches at 2 wks this time, thoughts advice input and or what has worked for others isappreci

Plant. Other

Setup. Strain · Autoflowering

Setup. Lighting

6y ago

2

4

Solved

If humans took weed to grow on another planet where the sun was up for 28 hours and down for 10 hours, how well would it grow? Would the plants adapt to the different light / dark times? Or maybe 24 of hours light, 6 hours of dark? Theories? Earthly Proof? Comments? 👽

Setup. Lighting

7y ago

7

4

Solved

New house - new light!Since I'm moving in a month or two I'm gonna buy a new light for vertical growing for celebration! I'm still going to use the 80x80 but I'll have some space in a separate room, more comfy.. Which light is better for a vertical grow?

Other. Other

Setup. Lighting

6y ago

3

4

Solved

GoldenWeedGrower

Lights type and distance Lucy is just entered in the pre flowering stage and I'm wondering if I have to use veg (130W) or blom (70W) lights or both ? At which distance the light has to be ?

Setup. Lighting

5y ago

1

1

Solved

i need masters to help me Hey friends I want to grow 2 pots at home. What equipment should I have for this? I can't decide especially about light and i don't know anything I want to install the equipment and order seeds, I would be very glad if you write me what to buy. thanks in advance

Setup. Lighting

6y ago

3

Solved

Future panneaux led Hey gardening enthusiast, I'm currently pondering my future purchase of LED panels. Between the FCE 3000 Mars Hydro and Spider Farmer SF 4000... Knowing that I have an 80×80 tent. If someone could tell me which one would be the best fit, please. Best regards. 🌱

Setup. Lighting

4y ago

3

6

Solved

Optimal Veg Light Spectrum?If you had to pick one light color for veg only, never to be used for flower, what would it be? 4000k, 5000k, 6000k, 6500k?

Setup. Lighting

6y ago

3

Solved

jimmminycricket

600 wattwhat Has anyone heard or used or have an opinion on this 600 watt led

Plant. Other

Setup. Strain · Autoflowering

Setup. Lighting

6y ago

2

9

Solved

eldruida_lamota

MARS HYDRO TSL 2000 The problem has arisen now, every time it turns on only half of the panel lights up, if I change the position of the plug it fixes it until the next cycle when it has to turn on again, and the exact same thing happens.

Setup. Lighting

4y ago

1

1

Solved

Cannabis_carlitos

What % to keep lights at during late veg My question was around what power % I should have my lights at? My light is 300watts so I am assuming 50% = 150watts? Is this enough to continue vegging my plant? I have noticed the growth isn't as vigorous.

Setup. Lighting

4y ago

2

5

Solved

LED Light Spacing So my taller plants are starting to get bright green on top. My light is 25” from the tops. I measured today, and if I keep the lights that far away during flowering, I hardly have any space to grow them taller. It’s a 6’8” tent. The bloom light also isn’t on yet. What do I do?

Setup. Lighting

6y ago

2

2

Solved

Low budget light I don't know if this is the right light. I'm gonna leave it for a week but if I don't see any kind of growth I'm gonna replace it with some good light. But since it's a wooden box I don't want to put a big light, maybe some stripe or bars, any low-budget suggestion is appreciated

Setup. Lighting

6y ago

4

6