Chat

By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms

Accept

Recommended

Back to Grow Questions

Light intensity in veg - Help needed!

arg_weedloverstarted grow question 4y ago

I have a 4x4 Tent (120x120cm) with 16 Autos and run a 480W 3.5K LED at ~55 % at a dist. of 40-48 cm (1.3-1.5 feet). Lux: 20-26k. They are tall with up to 14 cm (0.45 feet). What would be the right light density in week 2-3? Ideas? Plz help! THX

arg_weedlover

arg_weedlover

Solved

Setup. Lighting

likes

Autofemweedanswered grow question 4y ago

Bro en etapa vegetativa la planta necesita para su crecimiento óptimo entre 400 a 600 ppfd.

1 like

Complain

Selected By The Grower

arg_weedloveranswered grow question 4y ago

everything fine now. Luxmeter is woth nothing, with a parmeter and 600ppf all is fine... thx ppl!

likes

Complain

Appoldro420answered grow question 4y ago

Keep it simple, just lower the lights to 35cm. 480W is not too much for the room

1 like

Complain

nerdzanswered grow question 4y ago

Buy a Lux meter man they're . I'm at day 17 and just touching them with 20k

1 like

Complain

Odin9answered grow question 4y ago

First 2, 3weeks 20to35000luxand 30 to 50000 lux in flower

1 like

Complain

Similar Grow Questions

Solved

Anyone affiliated with Mars Hydro? Very disappointed with customer service My TS 1000’s controller/driver crapped the bed. Contacted customer support, told them the issue, they diagnosed based on videos i send, and was told they were sending replacement parts. 2 weeks later, no email confirmation and no reply to my previous 2 emails sent a week apart.

Setup. Lighting

3y ago

1

2

Solved

Lighting for 1 week plant?Should I give my plant 24 hours of light at one week? I’m very new to this and want to learn as much as possible...

Setup. Lighting

5y ago

2

2

Solved

Opinions on progress So this is my first solo grow in a completely new setup (previously only grown in collaboration with a friend). Started off with a cheap blurple light. Very slow start then upgraded to a mars hydro TS1000 2 weeks prior to flowering. Topped at 35 days How is she looking?

Setup. Lighting

Feeding. Schedule

Techniques. ScrOG

3y ago

1

2

Solved

Back To 24 Hour Light - Auto Flowers My autos switched from 24 hour light to 16 about 2 weeks ago to see if it would help make them bloom faster. Can I turn them back onto 24 hours or could that mess things up? I would like the most amount of light time. They should have 2 more weeks left

Setup. Lighting

4y ago

3

3

Solved

Lights too close?While trying to figure out why my plant is so dwarf like I realized it might be the height of my lights. They’ve stayed that position ever since installed them. The problem is they’re basically at the ceiling of my box. Is my set up limiting its growth too?

Setup. Lighting

5y ago

3

Solved

Do I need more light?Hey everyone, someone said that I need a better light but I though my plants were growing well? My light is a decent one, cost over 100, 190W. I thought my plants looked like they like the light I got, anyone see any reason that they need more? I stunted the smaller two btw

Setup. Lighting

4y ago

1

2

Solved

Less light for an auto? Maybe 12/12?Been going with 18/6 for my cream autoflower from growers choice from Day 1. Now 5 weeks into flower I’m wondering if she would benefit from less light, like 12/12, as you would for a photo period plant. What do you think? Would she be happy flowering in some more dark period?

Setup. Lighting

5y ago

1

2

Solved

COB led light from AliExpress Hi Growers! What do you think about this CoB led light ~30-50W from AliExpress. I received as a gift from my friend to combined it after 7-8 direct sunlight. Could it work in addition?

Setup. Lighting

5y ago

3

3

Solved

is it okay to place it near the led lights? as many says that it could burn your seedling down.recently im buying the 1000w full spectrum oem led from China. and i know it just “labeled” 1000w. im testing it on my plant, placing it near and seems like it doesn’t burn my babies.

Setup. Lighting

5y ago

2

Solved

How Much Buds can i get from 150W Cob Led with using lst techniques in auto ?Like i asked.I have 150W Full Spectrum Cob Led.The amount of lux is about the 12K by the way.So im gonna grow only one plant like auto royal dwarf or white widow auto.Do you think how much grams can i get with this condition?

Buds. Not fattening

Other. General questions

Setup. Lighting

5y ago

1

2

Solved

AliceInChainsmoke

Light for 1st time grow I have a 2x2 tent with 2 preflower autoflowers & trying to choose between viperspectra pro series or mars hydro ts 600 maybe. Any other good light recomendations welcome.

Setup. Strain - Autoflowering

Setup. Lighting

5y ago

2

2

Solved

Single CF Grow COB LED (300 W) sufficient for one plant?Would like to know your thoughts on my 300-W COB LED (www.amazon.de/dp/B07Z678V5) I’m using in open space on a single plant. I’m not expecting huge yields with this lamp, but I am hoping it will be sufficient to bring a healthy plant to harvest.

Setup. Lighting

5y ago

4

4

Solved

Telos Lighting Brand New Tech ?Hi Guys so what do you think to a brand new invention by GN in the uk fully water proof bluetooth ghost network end to end encryption dimmable by PPF number (first in the world) ? I have been gifted one to test by GN after meeting the team at a grow expo. What do you think ?

Setup. Lighting

3y ago

5

4

Solved

Do I have enough light Hi everyone 1 question I have 1king led 200w ,1hps 150w and 1 metal halide in a room of 120x120x200 is it enough ?

Setup. Lighting

3y ago

6

Solved

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

Setup. Lighting

4y ago

1

2

Solved

LeroyDagobert91

Can i add a light to help flowering can i add a light to help flowering even if it is a 6500k one i noticed that my actual 2700k led light is less powerful that the one i used for vegetative phase can i add (with the 2700k one) it even if it is a 6500k one ?? will it slow down the flowering ? thanks !

Setup. Strain - Autoflowering

Setup. Lighting

2y ago

2

3

Solved

2 Plants under 2 Mars Hydro TS1000 Can 2 Mars Hydro TS1000 pump out decent bud from 2 Female seeds? I have two plants on the go, and am wondering if those two lights are enough light to produce half decent buds! Thanks in advance!

Setup. Lighting

4y ago

4

5

Solved

23 hours light per day?I’m running 4 autos in a 4x4 tent on 20 hours of light per day. I’m thinking about the possibility of changing the light hours to 23 hours a day and 1 dark hour. I’m currently on week 8/9, I’m expecting it to finish roughly 12/14 weeks from birth. Any thoughts on this growers?

Setup. Lighting

5y ago

2

2

Solved

Growing lamp Im currently using 45W florescent 6500k for the seedling stage. When do you think is the best time to start using the 400W HID with a Cool Tube and how far it should be from the plant?

Setup. Lighting

5y ago

1

1

Solved

New UV Supplemental Light Bars Hello. I looking for someone with experience with the supplemental light bars. Is there any tips or tricks with these lights. How's your experience been with them? Anything else I need to know about them? Do they work like advertized?

Setup. Lighting

8mo ago

3

4