Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
First Light questions
PaulM
started grow question 5y ago
Hi guys, Happy to be here and learn more about growing these magical plants. Do yout think that 315W CMH will be enough for 6 plants ? And what distance should i put it from the young seeds ? thank you 😀
Open
Setup. Lighting
1 like
Answer
Similar Grow Questions
Solved
Newbiegrower420
Is it worth adding a LED 18w 2700k strip light for last few weeks of flower?
Should I add this light for the last few weeks of flower? I have a Streetlight 18w LED strip see pics. I was thinking that if I added this strip designed for flower to my tent like a side light it may help my Viparspectra V300 in fattening those buds a little. Thoughts?
Week 12
Setup. Lighting
6y ago
6
4
Solved
PapaBaer
Beleuchtung
Danke für die Antworten. Ich werde sie aus Zeitgründen in ihrem Zuhause belassen... aber gut für den nächsten grow... Wenn ich auf 12/12 umstelle soll ich dann auch gleich die Lampe wechseln?🤔
Week 4
Setup. Strains - Photoperiod
Setup. Lighting
6y ago
2
Solved
BRLGrow
Dropping sad girls
Hello masters !! 2nd grow trying to make everything right. Candy kush autoseeds 35 days 1st week of flowering The plant dropping on the top, new grow twisting, little yellow tips Over or under water? Light stress?nutrient excess?
Leaves. Other
Setup. Lighting
Feeding. Deficiences
5y ago
3
7
Solved
kira90
dli 40x40 growbox lamp distance problem
hi guys, I have a ts1000 at a distance of 50cm they tell me to lower it to 40cm but the dli would greatly exceed (60 dli photone) the recommended threshold of 40/45. Having a 40x40 growbox, in your opinion, at what distance should I keep the lamp?
Plant. Other
Setup. Strain - Autoflowering
Setup. Lighting
2y ago
1
1
Solved
Mr_Weeds_Autos
I've had two companies offer to sponsor LED lights for my grows, the thing is I don't know which to go with, so has anyone hear been sponsored by Mars Hydro or Viparspectra? if so, what was your experience?
Setup. Lighting
5y ago
2
5
Solved
BlackXwidow
Ballast died during week 6 flower! Help!
1000 Watt ballast just died during first day of week 6, freakin is awful! New one will be here on Wednesday via amazon. Options till Wednesday 1. Leave plants in darkness till Wednesday 2. Use spare 600 watt HPS for a few days 3. Use 600 watt HPS 4. Use 450 watt LED 5. 3+4
Setup. Lighting
6y ago
2
3
Solved
TintoBrass
Distance from lamp to bush
Friends, I ask for advice and thank you in advance🙏)) What is the ideal distance from the lamp to the bush? Light MARS HYDRO ts1000 150w now growing 2 bushes 2 and 3 weeks distance at the moment 35cm and dimmer at 60%
Week 2
Setup. Lighting
3y ago
8
5
Solved
czlok
Lamp distance at first weeks
What is the best distance for my lamp (Mars hydro 150w) in Plants in this earliest stages?
Setup. Lighting
5y ago
3
1
Solved
azvibez88
Can you run autos for 36 hours on and 8 off whan it comes to LED lights?
Can you run autos for 36 hours on and 8 off whan it comes to LED lights?
Week 2
Setup. Lighting
4y ago
3
8
Solved
GermanGrows
Sonofarm good brand?
Hello all. Has anyone tried the SONOFARM pro sf-4000?
Setup. Lighting
5y ago
1
Solved
darbyog
Is it too late for scrog and have I had the light too low during the veg stage?
So I noticed pistils appearing and now I'm worried that I've had my light too low during veg (~8k lux). Is it too late for scrog at this point or will they continue to grow? I've now bumped the light up to 22K lux should I lower the light to increase the intensity even more? TIA
Week 6
Setup. Lighting
Techniques. ScrOG
6y ago
1
Solved
zkittlezjunior
Cob Led Heat Problem
Guys i have a problems about cob led.Im gonna use 3*50W Cob Led full spectrum in a pc case.Do you think is there any heat problem in it?My case is about 50cm and my pot is 8cm.I'll use 2*120mm fans for exhaust and fresh air.And inside i'll insert one 8cm fan.
Other. Other
Setup. Lighting
Setup. Other
6y ago
7
Solved
Salokin
Light burn?
I had lowered my Sanlight Q4 from 50 cm to 40cm, as per vendors recommendation and now I believe that I have burned the little ones. Or is this a nutrient issue?
Week 1
Leaves. Color - Dark-brown
Setup. Lighting
5y ago
3
3
Solved
Padrino
Grow Light distance
Does it matter what heights I have my grow light at as long as my pfd is where I want it? For example could I have it closer and less power or do I want it further with more power. Feel like it would be better for the light the less power being used.
Week 4
Setup. Lighting
3y ago
1
5
Solved
HappySkunk
Idiot - new light, wrong sized grow tent
So I’m an idiot. All this time I thought I had and 80/80cm grow tent, when it turns out it’s actually 60/60, and I of course just ordered the SF2000 light, which is almost 65cms on one side. Should I just order a new tent right away to make it fit? Or could it be squeezed in? 😭
Setup. Lighting
6y ago
1
1
Solved
ToRuL88
A cuanto % de potencia pongo el led en crecimiento y en floración led 650w
Uso el marsh hydro fc e6500 650w en armario de 1.50x1.50 y 27 plantas, alguien sabe si poniendo el led al 40% de potencia está bien para la segunda semana de crecimiento? Luego voy subiendo? Hasta llegar al 100% por favor no encuentro información de este tema por internet. THANKS
Setup. Lighting
4y ago
2
2
Solved
TheSurfBud
Changing light schedule
Hi, my light is running at 12/12 because i had photoperiod's with them but they are finished now, my question is would it be ok to add an hour each day back to 18/6 without hermi or other issues? Cheers .
Week 9
Setup. Lighting
4y ago
2
2
Solved
1stForBuds
Buds touching light
Hi peeps.. another question but not so much a big problem... my blue cheese's are coming to the end of there 2nd week of flowering.. just 1 problem I have is 1 of my autos is still growing and is now touching my light I can't higher the light any more what can I do?
Buds. Other
Setup. Lighting
5y ago
1
3
Solved
The_garden_of_Vixen
Lamp distance
Hello. I have a question about my lamp distance. I’ve changed the lamp to MARS HYDRO 2023 TS600 LED a week ago and a distance to the plant was 18 inches. During this week a plant grew and the distance became 12 inches. I lifted the lamp to 13 inches. What distance I have to keep?
Week 6
Setup. Lighting
3y ago
3
2
Solved
Fletchy
Seedling light height?
My marshydro tsw2000 is set to 100% how far should it be above seedlings? Currently 50cm / 20inch
Week 1
Setup. Lighting
3y ago
2