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Back to Grow Questions
LED light distance during germination and throughout.
iLuvBlaznMJ
started grow question 5y ago
How high should I hang VipraSpectra PAR450 lights above the top surface of soil during germination?
Solved
Setup. Lighting
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Mr_Weeds_Autos
answered grow question 5y ago
Start at 36"inches and work your way to 18" as the plant grows.
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
myusernamename
*FC-E4800 Hanging Distance*
1st grow -4x4 with 480w Fc-e4800 in early veg (auto) but I am very confused on light distance and dimmer %. Apart from recommended distances, can someone point me to how I can establish the correct height and dimming % required based in the grow cycle? Currently at 30% & 55cm
Setup. Lighting
3y ago
2
3
Solved
Nerohero
Optimal light distance for 1 plant in my 60x60x140
Optimal light distance for my 200w LED through seedling stage? some websites saying various figures, ive got mine around 13 inches from the plant
Setup. Lighting
4y ago
2
4
Solved
BullWeedDog
Pasar de fase de crecimiento a pre-floración??
Cuando las plantas pasan de estar en la fase de crecimiento a pre-floración?? Es que la tabla de los fertilizantes que tengo (grotek) muestra estas fase pero no se cuando se hace el cambio y en esta fase es cuando subo de potencia el balastro de 400 a 600??
Other. General questions
Setup. Lighting
Techniques. 12-12 from seeds
3y ago
1
1
Solved
3lementa1
Which LED light for 2'x3.5'x5.5' perpetual DWC auto
After this run I think I'm going to grow 2 DWC autos at a time and harvest monthly. I'm looking at a 6x 3k COB, a 58 SMLEDs 2 CREE COBs (3k and 5k), or a 112 SMLED and 4 CREE COB (3k). LINKS: https://tinyurl.com/778famth https://tinyurl.com/2dz9uw https://tinyurl.com/4m7ynerv
Week 6
Setup. Lighting
4y ago
3
5
Solved
Ciujbau
Different plant heights lightning
Any advice how to cope with 1 plant being 30cm higher than other plants and being 20cm away from light? I can go higher another 10 cm max. But will be 60-70 cm away from other shorter plants. Using ts1000 week 6 flowering. Some top cola leaves shows some light burn, nothing major
Setup. Lighting
5y ago
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3
Solved
Ghost2022
CR600 1000w
Hi, Can someone please tell me with the cr600 1000w by Fecida how far away they would put the light on a 2 inch seedling of Green Crack and what percentage they would have the power at?
Setup. Lighting
3y ago
2
3
Solved
MarkGreenThumb
New Light distance from plant. =D
I got a 200W LED instead of the CFL's. How far should this be from the Plants?? =D
Setup. Lighting
5y ago
2
2
Solved
GreenHillZone
PAR/PPFD and light height
PAR/PPFD: does light height matter if your PPFD is in the right range? Another way to ask: is 300 PPFD @ 2 feet the same as 300 PPFD @ 20 feet, or are there other factors involved? (assuming heat, C02, all other non light inputs equal)
Setup. Lighting
5y ago
4
2
Solved
Hades93t
Led
Hi guys I would like to know if some of you guys already use SF 2000/SE3000 from spider farmer, and green sun shine 180w ? I’m lost between those brands, can someone help me out aha, I’d love to buy one. I’m gonna buy the tent that’s fits the led init obviously
Setup. Lighting
4y ago
1
1
Solved
Smokey89
Light output once flipped 12/12
Hi guys just after a bit of information regarding flipping. When you guys and gals flip do you increase your light output gradually or do you just go straight to full power. Any information will be appreciated thanks growmies
Setup. Lighting
4y ago
1
2
Solved
XII_XII_EarlyRaver
Grow tent
I want to buy a smaller tent were I can grow the frist few days/weeks, any suggestions ?
Week 9
Setup. Lighting
Setup. Seedling
4y ago
3
1
Solved
BlumenBot
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
5y ago
3
Solved
Do_it_Dan
Optimal distance and settings spider farmer sp2000
What's the optimal distance and dimmer settings on a sp2000? Seedling stage into veg, in a 1m x 1m tent, thanks guys and happy growing 💚😎
Setup. Lighting
3y ago
3
3
Solved
BruceBlack
Hi all! I would like to buy one Mars Hydro SP150 for a 1.20 mt tent do you think it's enough for a SOG with 12-15 plants? Thanks in advance
Setup. Lighting
6y ago
3
3
Solved
GreenleafSWO
Grow light height in flowering
I have a lumatex ATS 200w led, I've it raised to max height but I've still only 10 inches of clearance from the canopy. It's flowering now and upward growth has stopped as buds are starting to fill out, will I be ok with this short distance?
Week 8
Setup. Lighting
3y ago
2
4
Solved
Mikeinthekeys
How can I prevent these light burn issues?
It seems these Mars hydro lights are not so great. This is my third grow and having the same issue every time. Red stems where they are exposed to light. Yellowing leaves. But when I move the lights further away, stretching is very bad. Should I just get new light?
Setup. Lighting
4y ago
2
8
Solved
Smoqer
Veg Bloom switch
What’s the best moment to switch to veg and bloom if using a full spectrum led?
Week 5
Setup. Lighting
5y ago
4
3
Solved
Theia
Autos and light schedules
Last night my light timer broke. How sensitive are autos to their light schedule being messed with? i was on a 16/8 for the lsat few weeks. Last night my timer broke and i did not realise until midday. Now shes been in the dark for nearly 12 hrs!! Should i expect some issues ?
Week 9
Setup. Lighting
5y ago
3
3
Solved
GrowGirl419
Are these LEDs good?
What do you growmies think of these lights? They're LED's, I have 2 of these going and a few other lights. These though, I don't understand much about electrical info. My green seems to like them ok but are they good? I know to the experts out there, this probably seems dumb, but
Week 10
Setup. Lighting
5y ago
4
2
Solved
JaramnieJazz
Cuts
Min needed Watt for keeping cuts alive and/or keep mother THX
Week 4
Setup. Clones
Setup. Lighting
4y ago
1