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Back to Grow Questions
How to use a led lamp
Abacus
started grow question 3y 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 3y 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
hooolian
24 hours daylight in flower mistake
I have made a mistake - have 4 tent set ups each different digi light timers - this tent has mistakenly been left on (24 hours daylight!) for just over a week - should be week 4 flower. can it be saved? any advice? I have put it right so should get the 12 hours dark like the rest
Setup. Lighting
3y ago
3
3
Solved
Stigghiola
Lampada
Ho aggiunto una lampada Sonlight Led Bar 24x3W per aumentare lo spettro e poter far si di fare arrivare la luce a tutti i fiori, dovrei metterla più in basso o in alto rispetto all'apicale?
Week 9
Setup. Lighting
5y ago
1
Solved
Stomvi420
Light (distance from plants)
Replaced my LEDs with this CFL (all DIY solutions at the moment) Does this look like an appropriate height to have it sitting?
Week 3
Setup. Lighting
6y ago
1
1
Solved
420Highlifecouple
Best 2000watt led?
Best budget 2000watt LED?Mars XS,Viparspectra P series..etc
Setup. Lighting
4y ago
1
1
Solved
Growladyeastmidlands
What lights best to flower mars hydro 1600w or hps 600w
Setup. Lighting
4y ago
2
4
Solved
Sativa_Juice_Grows
Lighting Question
If anyone has a Mars Hydro tsw2000 light can you tell me what the function of the two switches are? The only thing i could find was something saying that one is better for veg and one is better for flower. Can anybody tell me which one is which? cant find much online to help.
Week 8
Setup. Lighting
4y ago
1
2
Solved
Chanardo
Distante between LED and plants.
The distance between the LED and the plants is 53 cm. Is it ok for the first week? I've read that a short distance in this stage is good to produce a not so tall plant.
Setup. Lighting
3y ago
2
2
Solved
Rush2112
Effect of light only? Really?
These girls same strain (strawberry cough photo), born on same day, same medium same feeding except the one on the right was removed from the light about 3 weeks ago and put outside. I thought dark green from nutes, seems the light alone makes such a difference? 45 watt LED
Setup. Lighting
5y ago
4
Solved
MarkGreenThumb
Bulb Distance from my Little babies. =D
Little girls are looking a lot taller today. Will post a new week in 3 days. But as they are growing so fast and I'm still using 125 CFL, How much distance between bulb/reflector and plants should I keep.?? I will be switching to a HPS at some stage,
Week 1
Setup. Lighting
5y ago
1
1
Solved
Abacus
Life of light and filter
after 3 cycles at 18/6, should I change a cfl 200w that I use for both (veg and bloom)? and what about carbon filter that I use also after harvest?
Setup. Lighting
Setup. Other
4y ago
1
2
Solved
bigmomma216
Light Height - Frist Timer! Jack Herer Auto
Calling all Growers! First timer here, 2 pots of Jack Herer Auto. Need some lighting advice...I just planted the seeds today. 1 LED light is 1000W and its about 18 inches above 1 plant. The other plant has a 300W LED about 12 inches above it. Is this an OK light height for the
Week 1
Other. General questions
Setup. Strain - Autoflowering
Setup. Lighting
5y ago
2
2
Solved
FrankieBones
Light Distance - 3 plants are taller than the others...
Hi all. So I have 6 plants with a 400w HID. 3 of them are about 10-15CM taller than the others. My light is currently about 45CM from the top of the tallest one. Would this affect the shorter plants negatively? Should I raise them to the same level and up the light to 60CM rather
Week 5
Setup. Lighting
5y ago
2
3
Solved
ShivaPriya
Confused with light schedules for outdoor growing
Hi fellow growers, I'm really confused with light schedules for outdoor growing. Everywhere I see 18/6 for veg and 12/12 for flowering. However at my place I get ~13hours of daylight (not always sunlight) Would my plants get into flowering if daylight is reduced to ~11 hours?
Week 1
Setup. Lighting
Setup. Outdoor
Feeding. Schedule
4y ago
5
4
Solved
Chaweeder
Are all Amazon lights Garage,
I wanna buy some pretty descent LED lights, but dont have tons $$$$ my plan is eventually to get up to 20 autos in 1 room? I dont wanna spend 1500$ per light, but 500$is ok. I will buy more of these 500$ lights to fill up my 8X12X8 room, a few at a time, I dont wanna buy crap
Setup. Lighting
6y ago
4
Solved
Drakkh
En qué mejora más watts de luz
En qué mejora que ponga 100w de LED a 30/40cm de las plantas a qué tenga 50w de LED a la misma distancia ? O por ejemplo con 400w de LED a 40/50cm crecerían x(2, 3, 4) veces más rápido?
Setup. Lighting
5y ago
4
1
Solved
SerpentPower
Using side lighting
Do you guys ever put the grow light on the side? As soon as I moved the grow light to the side of the plant and set it up at a good height it grew like little shop of horrors. It's a sox weeks autoflower white widow from I49 genetics.
Week 1
Setup. Lighting
4y ago
3
Solved
ZhugeTsuki
Can too much light in Veg cause EC to skyrocket?
Hello everyone, I have 4 plants in a 3x3 area under three of these lights - https://amzn.to/2MhseVH 360w all together which is what I expected to use during flower, I didnt realise that you dont need to use as much during veg, all plants have had to be flushed with EC's at 10
Week 7
Setup. Lighting
Feeding. Deficiences
5y ago
1
2
Solved
Jeffrokush
Light analysis??
I used the photone app in order to get these numbers that are pictured below ! I’m going to research them but I’d thought I’d share them anyway.
Week 6
Setup. Strain - Autoflowering
Setup. Lighting
4y ago
2
Solved
SoulGrownBotanicals
Photobio mx680
Does anybody know height and intensity recommendations for the photobio mx680? I just received won from a contest and for the life of me cannot find the manufacturers recommendations.
Setup. Lighting
3y ago
2
3
Solved
Lew420
Bad idea?
Will a mars hydro TS1000 be too strong for a 60x60x140cm tent? I have been using a TS600 and TS1000 in tandem in a tent 4x too big for the light level, I have been growing strong and tasty buds but with low yields so downsizing my tent size to maximise the light.
Other. General questions
Setup. Lighting
2y ago
3
3