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Back to Grow Questions
Light question
Trippychef
started grow question 5y ago
Is my light too far or to close its about 19 inches from plant top 250 watt caligro led at about 65% power
Open
Week 5
Setup. Lighting
likes
Answer
SpiderMite
answered grow question 5y ago
The light is to far away. You have a dimmer so you can put the light closer and run it with less power.
1 like
Complain
Similar Grow Questions
Solved
KinoBudz74
Light distance
So I just got the Mars hydro fc e6500 and put it in my 4x4. I’m about to enter flower next week and I’m not familiar with this light and I just want to know some tips on how many watts should I be using right now and light distance from canopy
Setup. Lighting
5y ago
1
2
Solved
Demosthenese
Time lapse under HID lighting
How do people do time lapse with hid lighting? Do I need to set timers to turn off hid, turn on fluorescent and then take the picture? Is there a filter I could buy that eliminates the horizontal scanning lines?
Week 2
Setup. Lighting
5y ago
1
Solved
TonkaSun
Turning lights off before harvesting
I've seen some growers who turn the lights off a couple of days before harvest, and I don't know why. Are there any benefits to doing this? or concerns?
Other. Drying
Setup. Lighting
4y ago
7
4
Solved
burnoutdev
Grow lights
Hi, I have really shitty lights for my seedlings and want to upgrade and have two options: MarsHydro TSW 2000 or LM301B LED Board 240W can you help me decide? Links: https://tiny.cc/Samsung240W https://www.mars-hydro.com/mars-tsw-2000-led-full-spectrum-hydroponic-led-grow-light
Setup. Lighting
7y ago
1
Solved
Bluebeast007
Please help! Light Needed!
Just going to pop this into the universe, but if anyone is willing to sponsor a grow light to someone in South Africa, please dm me. Really want to keep my grow alive. And would really appreciate it. Only need 200watts at least.
Week 3
Setup. Lighting
5y ago
4
4
Solved
Percy
Led choices
Has anyone grown with a PHLIZON UPGRADING 600W (DIMMABLE) LED Deciding between this and the all to well known brand marshydro 600w which uses unbranded lm301b leds whilst phlizon uses samsung diodes lm301b leds Help help help
Setup. Lighting
5y ago
5
9
Solved
NederGreens
Help de decide tent and light for my setup
I want to so some quick yielts with autoflower. Maximum of 4, with a 100 watt light. - What tent do you recommend (will a 2,3 x 2,3 mars hydro be enough?) - What light do you recommend? (i see many 100 watt lights but some people pushing it with 300 watt lights, i won;t do co2)
Setup. Lighting
2y ago
3
4
Solved
darbyog
Distance from pot to light during germination
Worried about our light power and distance to the pots, should we be running it at full power with the light higher in the tent or vice versa? Also very unsure about watering amounts in these early stages and is it okay for water droplets to be sitting on the growth? TIA
Week 1
Setup. Strain · Autoflowering
Setup. Lighting
Setup. Seedling
6y ago
4
4
Solved
Kitties_and_Colas
48hr dark period before harvest: Yay? or Nay?
I always get mixed answeres on this,.some swear by it while other's say it does nothing.We tried it only once and found no notable difference..I'll leave this question open for a bit,i'm currious to hear some differing opinions and maybe a little science, ty guys❤️😻~Ms.Cats
Week 13
Other. Other
Setup. Lighting
5y ago
8
5
Solved
einamio
Can a 1000w LED grow light be closer than 60cm (24") to a seedling?
Different sources are saying: 1000w LED light should not be closer to a seedling than 60-75cm (24"-30"). The seedling should be getting 5000-7000 lux, 100-300 PAR (PPFD 18h) and 12-20 DLI. Question: Can I put the light closer at ~40cm, dimmed to match the needed lux, par and dli
Setup. Lighting
Setup. Seedling
3y ago
3
3
Solved
Jardunny
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.
Week 1
Setup. Lighting
6y ago
2
Solved
BudsMurdock
Lighting
2 x 3.5 x 6 cabinet, would 2 600 watt Bestva Elite lights be too much?
Week 3
Setup. Lighting
6y ago
2
3
Solved
AlpineGoat
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
MrJoint
COULD THE LIGHT BE 7.8in ABOVE THE PLANT?!
☀️Mars Hydro LED TS1000 150w. Could the light be 7.8in (20cm) above the plant? Or just 11.8in (30cm)? For not bud burn 🚫🔥
Week 5
Setup. Lighting
6y ago
2
2
Solved
LegalGrowMyOwn
experienced growers are in demand😵💫💡
Hey volks 🙌 I'm trying to grow 3 different grow phases in my 4x4 tent, but getting too much problems with my light.(Mars Hydro TSW 2000) its too strong for my little plants. Can you give me same advice about hight/intensity? Thanks alot and happy growing🌱
Leaves. Tips · Burnt
Setup. Lighting
2y ago
2
3
Solved
Jerrylarrydalton
1000 watt spder light.... first light
So I'm getting a light in a couple days.. first real light I've ever had besides the little 15 dollar led bulbs. Which work great btw for young plants. Anyway I'm getting a 1000watt spiderlight. How far away from my plants should I try an keep it? Grow area is only 4x2.
Setup. Lighting
6y ago
5
6
Solved
a_tribe_thats_stoned
4 by 4 tent wattage
For a 4 by 4 tent with 6 to 8 plants in it what would you recommend for light wattage. I have all LEDs and also is 800 over kill
Setup. Lighting
4y ago
2
3
Solved
Mj42Organic
Additional lighting in flower???
I’m planning on putting another 2 x 600wLED (blurpul colour type) alongside my current 2 x1000w led Cree cob lights. I have them spare and was hoping this will help with flower/thc production??? Is it worth putting them in or just wasting electricity. Any help appreciated 🤙✌️🎄
Week 21
Setup. Lighting
6y ago
1
1
Solved
TrimQueen
120w enough to make a single trained plant bloom well?
Guys, I have 120w LED white spectrum. Is it enough power to bloom this beauty? Thank you all
Setup. Lighting
6y ago
2
1
Solved
Kayaboy
Downgrade my light wattage or not?
My tent is 80cm x 80cm x 180cm and i use a 400w hps/mh. Based on all light calculations i came across it gives me a total requirements of light of around 160-200 watts. Should i downgrade to a 250w system or keep the 400w and why please, some expert ? Thx
Setup. Lighting
7y ago
2
2