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Back to Grow Questions
Lamp distance at first weeks
czlok
started grow question 4y ago
What is the best distance for my lamp (Mars hydro 150w) in Plants in this earliest stages?
Solved
Setup. Lighting
likes
Mr_Weeds_Autos
answered grow question 4y ago
At this stage, I would go with 24 to 30 inches, as they grow you'll be able to bring the light down to 18 inches.
3 likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
m0use
LED Kelvin Temp 3000k-6500k
Is there a massive difference in colour temperature/kelvin of LED's if the lumens, PAR, watts, intensity and every other aspect you can think of is the same but its temp/kelvin is lower? I use a 6500k LEDs, may mix in or switch to 3000K for better flowers if its proven to work.
Week 10
Other. General questions
Other. Other
Setup. Lighting
5y ago
5
3
Solved
smokeshi
New Light? Find a way to raise light? More Fans? Combination? (Light: 44" above ground level | Tent Height: 63" Day avg: 78.6f) Should i worry?
What do you guys recommend as far as lighting for this tent? I have a 300w led light but at the height it's currently at it is producing a large amount of heat with my exhaust and two oscillating fans? I also have other plants in with my seedling so could the humidity cause it?
Week 1
Other. Other
Setup. Lighting
Setup. Ventilation
5y ago
2
Solved
GBaalr
Danger of Humidifier
Good morning everyone. So I've recently set up my new TS1000 and I'm wondering is humidifier dangerous for LED lights? It's directly under the light 60cm. And how can I regulate the temp in the room without new equipment? It's too high at the moment.
Setup. Lighting
4y ago
3
6
Solved
BrediniGreeny
Hey growmies✌️💚, so I finally have a PAR meter. With all my 3 LEDs on at the lowest setting I reach like 77 umol max. What would you recommend for seedlings that small like in the picture? I saw seedling/clone 100 - 300. So just wondering how much for my little flowers? 😁✌️
Setup. Lighting
6mo ago
1
2
Solved
roro_204
Yellow/ Lime Leaves ????
I have 3 grow rooms. I moved all the deficiency plants to 1 room. The whole half of the plant is turning really light yellow/ Are my lights too close to the plants ? Or is my feed to low?
Leaves. Color - Yellow
Setup. Lighting
Feeding. Deficiences
4y ago
4
3
Solved
Carlotta
Electrical power calculation
Actual power consumption of lights is lower than led manufactorer says. 25 leds of 3W each = 75W plus an internal fan plus some other circuits,Total power should be more than 75W and i calculated 58.3W overall. Vac=220 , I=0.265A Any ideas?
Setup. Lighting
5y ago
6
Solved
Ninjabuds
26 hour day cycle?
ever done a weird light cycle for photo plants? like 14 hours of light then 12 hours of darkness then keep repeating I know that this is longer than a normal 24hour day. 1. 12 hours of darkness is what makes weed start flower. Do weeds know days r 24hr? Can a 26hr day cycle work
Setup. Lighting
4mo ago
4
Solved
TheGourmetWeed
Heat, RH or overwatering? Or alltogether?
Hey my fellow growers! The grow reached 32Celsius the last 2 days in the last hour before going into night time. On that time RH goes down to 32% and this seems like it's stressing this lady a bit. Yesterday fed her nuts - maybe a bit too much? Thank you for stopping by!
Week 3
Leaves. Curl up
Setup. Lighting
Feeding. Deficiences
5y ago
2
2
Solved
Troy_Farms
Spider Farmer sf 1000 light height inquiry.
I am growing in a 2x2 spider farmer with a SF 1000, currently the light is 20" and only 80% power. It seems like a powerful light and don't want to overdue it. Should I move the light closer and turning up to 100% power for the rest of flowering?
Setup. Lighting
5y ago
3
2
Solved
Onandon
Voost VST240
Looking for a good budget light for a 4x4 grow. The Voost VST240 looks like a fantastic spec but no real information out there that I can find. Any users? Also considering a Migrow Array when the bigger version hits the market.
Week 10
Setup. Lighting
5y ago
1
Solved
PREPPYPUNK
JUST PLANTED GERMINATED SEEDS. DISTANCE, LIGHT SCHEDULE AND LIGHT POWER? PLEASE HELP! THANK YOU!
I JUST PLANTED GERMINATED SEEDS TAP ROOT DOWN AND LIGHTLY COVERED, WILL KEEP DAMP. WHAT IM WORRIED ABOUT IS LIGHT SCHEDULE AND LIGHT STRENGTH AND DISTANCE. ITS A MARS HYDRO TSW 2000. I HAVE IT AT 40% POWER AND 24 INCHES FROM SOIL. 12/12 SCHEDULE. DOES THAT SOUND COOL?
Setup. Lighting
Germination. Other
5y ago
4
5
Solved
GeminiCQC
Help with issues ID
I have a photoperiod in a 5 gal using BAS light. It is currently day 3 of week 4 , and I'm getting some damage on the tops. Would this be light stress or another issue? The tips are starting to go light green. Using the 200 watt light for the 2x4x8 ac infinity tent.
Leaves. Tips - Burnt
Setup. Strains - Photoperiod
Setup. Lighting
1y ago
2
2
Solved
Luna91
Is it the Time for both Veg/bloom light?
Hiiii My plants are At week 5 and 3 of them have grown very faster, now they are at flowering stage! Can I turn on the BLOOM light with VEG light together? I’ve got 2 lights in my tent, the bigger one is 1200w, and smaller 1000w. And 60cm the height of the lights are okay?
Week 5
Setup. Lighting
5y ago
3
3
Solved
Jakescalls
Led light
Hi guys, I recently purchased a 200watt LED of canna lights it doesn’t have the veg and bloom switches does this make any difference ?
Setup. Lighting
5y ago
2
Solved
HierroYOlivia
New led light
What do you think about my new led light 480 watt?
Setup. Lighting
4y ago
1
1
Solved
NonameGrowDude
Light recommendation
what led light would you recommend for a Secret Jardin DS150W (77x150x200cm)? It need to have a remote driver and be full spectrum. It could also be 2 lights.
Setup. Lighting
1y ago
3
Solved
LongBeachStoner
24 hour lights in veg?
Is a 24 hour light cycle good for my plants as I have read? Should I switch to 16/8?
Week 2
Setup. Lighting
4y ago
6
6
Solved
Mr_Motalovah
NEED SOME ADVICE! Change to LED from HPS? which ones are good for tent size? Which ones are good for good yields?
I've got a 4x4 tent with 8 seedlings in cups but will be in 11L pots. Currently I had a 600w HPS light but my ballast busted today. I have a back up CFL 150W not to mess up the light schedule. Thinking about changing to LED lights, I know it'll be cheaper but I want same yield...
Setup. Lighting
5y ago
7
6
Solved
MrJoint
DO YOU USE LED DIMMER?
Você usa o dimmer de potência do led? Usa ele em 100% ou aumenta em cada fase (seed, veg, flo)? Tenho visto as duas formas e gostaria de ouvir de amigos mais experientes. Sempre buscando mais saúde para as meninas. ✨🥦
Week 3
Setup. Lighting
5y ago
1
4
Solved
GreenHillZone
Autoflower light cycles - adjusting mid grow
Autoflowers can grow in pretty much any light cycle. What are your experiences with changing light cycles mid grow? I am currently around Day 24, running 20/4 but the humidity in my grow cabinet at lights off is very high. How would adjusting to 24/0 affect my plants now? Thanks!
Setup. Lighting
4y ago
1
1