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Back to Grow Questions
How to use a led lamp
Abacus
started grow question 4y ago
How do you use a dimmerable full spectrum led lamp? When full power? When less? Distances?
Solved
Setup. Lighting
likes
crimsonecho
answered grow question 4y ago
every led is different. different light spread, efficiency, spectrum etc. post which leds youre using then maybe people can guide you in the right direction
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Complain
Selected By The Grower
Similar Grow Questions
Solved
mtnDEWD
HLG UVA supplement
Introduced this hlg 30 uva light as a supplement to the twin 260s. I've read just 3 hours a day increasing 1 hour per week up to 4-6 hours before harvest. Anyone recommend anything differently or just run it 18/6 with the lights?
Week 6
Setup. Lighting
5y ago
3
3
Solved
Natrona
Is it better to have one light unit that covers the full area of the tent or use multiple smaller ones? Im using 2 small leds. Is it better to have the ability to dim the lights or just have one power of intensity?
Week 6
Setup. Lighting
3y ago
5
3
Solved
MrIssa3x3
Flickering AC INFINITY light- S33
I have flickering ac infinity lights. Connected and disconnected to controller. It won’t let me post a video but the video is on my most recent week of flower on my diary. Has anybody ever experienced this? And how did you fix?
Setup. Lighting
1y ago
5
Solved
Rixx2k
Niello 300w how high hang in Vegi ?
Hello lovely Grow Community. I have a niello 300w and do not know how high I should hang it in the vegie phase can help me someone who has experience with the lamp ? Greetings Rixx
Setup. Lighting
5y ago
1
1
Solved
StDeacon
Is the led Light enough?
Not slowly picking me equipment for indoors, I wanted to ask you if this LED is enough when I get it 2 times. https://www.lumeri.de/lumeri-sq200.html
Setup. Lighting
6y ago
2
Solved
greenhousegrowgirl
Should I substitute sunlight with a grow lamp on cloudy days?
It’s overcast here today and I’m wondering if I should turn my grow lights on to compensate for the lack of direct sunlight. If so, should I drop the intensity to compensate for the additional natural light? Can you overdo the amount of light (not heat) a plant gets?
Week 3
Setup. Lighting
5y ago
3
1
Solved
Kenpowarrior
Light question
I grow at 18/6 light now for 2 weeks going into 3rd week. From what week do i change my light to 12/12? They are automatics.
Setup. Lighting
5y ago
3
4
Solved
Padrino
FCE-4800 at 100%???
does anyone have a fce-4800 by mars hydro and possibly have it in a 4x4 tent? Do you crank that bad boy up to 100% in flower or is it too much?
Setup. Lighting
3y ago
1
2
Solved
NegotiatedBubble
Should one decrease light intensity during early flower?
Should one decrease light intensity during early flower, and then gradually increase again? I see DLI/PPFD recommendations for flowering in general, but not for the different stages of flowering.
Setup. Lighting
3y ago
4
Solved
Cannabingrowin
LED lights. What brand and why? what is the best LED diode? just the samsung ones? LM301
Lighting. I have 3 SpiderFarmer SF 1000 lights with 4 T8 barina 2ft around the edge of the tent. Does anyone recommend a different Lighting set up? Does anyone know how long these spiderfarmer lights will last? I have a 48x48x80 tent with 4 plants at the moment.
Setup. Lighting
5y ago
2
2
Solved
crusoe
Light height full power vs dimmed
Hi, with light height, does it make a difference to the plant if I'm at full brightness and further away vs dimmed and closer? I'm going to start running out of tent space soon so I'm expecting I'll need to dim in late flower. I think it's ok just looking for assurance :)
Week 6
Setup. Lighting
5y ago
1
1
Solved
Dean1
Light addition?
Can I use a veg light and a flowering light together 2 weeks old autos been using 250w MH wondering if I can put a 400w hps in too will it start early flowering
Setup. Lighting
6y ago
2
2
Solved
guspirinhes
What distance is the best to star with the 150w cfl bulb ? the plant with 6 day .Thanks
Week 1
Setup. Lighting
6y ago
2
2
Solved
RemoveYourChains
Light upgrade question
I have a 250W vipar p2500 LED currently. my power budget is ~400W Would you buy a single bigger new light or would you buy 1-2 smaller ones to use with the existing light? What brands/model would you recommend?
Setup. Lighting
2mo ago
7
6
Solved
eatmykimchi
hlg550 distance from canopy veg
How far from canopy for HLG 550 during each stage? After starting with a cheap LED, without getting a par meter I think 18" @ 50% power, or 32" @ full power for veg? Start higher and increase power every few days?
Week 1
Setup. Lighting
6y ago
1
3
Solved
iMpulsive_Grow
New grower and high tent temp. please help
So I have a 2by2 tent and temperature is staying around 80 degrees. I have a total of 3 fans in there and lowered the wattage on my 1000w hydro LED lights. What else can I do to keep it at optimal temperature? Also has a Hydro Co2 booster fan making it 4. any suggestions please?
Setup. Lighting
Setup. Ventilation
6y ago
2
1
Solved
Zer0xKira
I purchased two Vipar Spectra 300 LED Lights. I am only using one right now because i was concerned two would be too much for the seedling phase. Should I keep just the one light or Put up Both ? When would be a good point in the plants life cycle to put up the extra lights ?
Week 2
Setup. Lighting
6y ago
1
3
Solved
Fonzi
Has anyone of you ever done a vegiphase with Megallhalogen (Mh) and then the flower with led?
Has anyone of you ever done a vegiphase with Megallhalogen (Mh) and then the flower with led? The temperatures are a bit low for me. In the box i have 23-24 degrees during the day and 18- 19 at night. I am considering making the vegi with an mh.
Other. Other
Setup. Lighting
4y ago
1
Solved
MangJs
Substrate Germination - lighting
Hi Growmies!, just a quick question on lighting on germination just want to know your methods. do you 18/6 lighting or 24 hours on germination period? is it worth doing 24 hours? whats your preffered method Thanks all
Setup. Lighting
Germination. Substrate
5y ago
4
4
Solved
topplant
LED Suggestions
Can someone help suggest a decent grow LED for a space of 0.3m with height of 1m. Looking to only grow 1 plant on a budget.
Setup. Lighting
4y ago
3
5