The Grow Awards 2026 🏆 
Light pointed at white wall for supplemental lighting?
mexycomebackstarted grow question 5y ago
Does it makes sense to have a small 300W COB LED pointed at the white flat painted wall for supplemental lighting?
If I point the light directly at the plants I would surely burn them but have no space to move back.
likes
deFharoanswered grow question 5y ago
Yo uso esos cobs pequeños para dar luz lateral directa a las plantas, algunos los acerco hasta 10cm y todo va bien.
NobodysBudsanswered grow question 5y ago
plus, you are doubling the distance, but that may be the reason you do it...
likes
Complain
NobodysBudsanswered grow question 5y ago
Not the most efficient, but if angling it at the plant from side is too close, you getting post the light (~90%) off one bounce. 81% second bounce...
likes
Complain
Similar Grow Questions
Solved
Hou_Stone
a good lamp ?Good morning,
Currently I have an hps and I'm looking to invest in a good lamp. Do you have a good one to recommend?
I have a room 100x100x200 cm
Currently I want to take the mars hydro fc3000 I am not sure if it is powerful enough for my room? I would like to have opinionsSetup. Lighting
3y ago
4
6
Solved
Abacus
Invert light/dark during a growFor veg period is better if I start with light on in the day, and off in the night, but for bloom period it will be too cold, can I invert light/dark during a grow? I will have light on in night and light off in the day.. does the plant have any problems if I do that?Setup. Lighting
3y ago
6
Solved
zkittlezjunior
Cob Led Heat ProblemGuys i have a problems about cob led.Im gonna use 3*50W Cob Led full spectrum in a pc case.Do you think is there any heat problem in it?My case is about 50cm and my pot is 8cm.I'll use 2*120mm fans for exhaust and fresh air.And inside i'll insert one 8cm fan.Other. Other
Setup. Lighting
Setup. Other
5y ago
7
Solved
shipton
Transfer from seedling LED to HPSI am starting under a MarsHydro TL1000 (150watts led), and I wanted to know when I should transfer to my grow tent, which I have a 600watt HPS all setup ready to go. Should I wait a few m ore weeks or is 2 weeks old ok to put under?Setup. Lighting
3y ago
2
6
Solved
Siriuz
Should I take her outdoors for 3/4 hrs daily ?They've got 53 days outdoors morning time and when the weather is good they used to stay outside all day til 6pm then back indoors until next morning at the AC comfort zone plus CFL 150 watts, now they have 600 watts LED Grow lights and no outdoors plus 100 CFL lights fan and AC5y ago
2
3
Solved
BENY_TRUBY
Espectro de luz en automáticas¿Cuándo se debe cambiar la bombilla de crecimiento a floración? Tengo unas autos de exterior a las cuales les doy iluminación extra dentro de casa cuando es de noche. Los focos son neones CFL de 55w y hasta ahora (5 semanas) siempre he usado el CFL con espectro para crecimiento.Setup. Lighting
3y ago
2
Solved
BullWeedDog
Cuando y como pasar mis plantas a floración??Voy a pasar mis plantas a floración 12/12, he leído que la dejan 48hrs sin luz para forzar la floración esto es bueno o lo paso y ya?? Y tengo un balastro gradual lo tengo en 400w al cambiar a 12/12 lo coloco en 600w o espero a la segunda semana de floración para pasarlo a 600w??Other. General questions
Plant. Other
Setup. Lighting
3y ago
2
2
Solved
PREPPYPUNK
MARZ HYDRO TSW 2000 or MAXSISUN MF 2000 WITH DIMMER, MEANWELL DRIVER AND THE SAMSUNG LEDS ? please help!PLEASE HELP try to keep very simple. which light would use on a 3x3 tent with 6, 3 inch seedlings in 3gallon pots of foxfarm? MAXSISUN MF 2000 WITH DIMMER, MEANWELL DRIVER AND THE SAMSUNG LEDS OR THE MARZ HYDRO TSW 2000? Thank you in advance!! really freaking outSetup. Lighting
5y ago
2
2
Solved
Marlienos
Led Stands VEG or FLOWERING or both?Hi I bought a led light 1000W it has to buttons on it
> 1 for VEG and 1 for FLOWERING
Seems i can use both stands at the same time.
Here comes the question
Should I only use flower stand or both on? The manual which come with it doesn't tell me this.
Thank youSetup. Lighting
4y ago
2
3
Solved
Growladyeastmidlands
Light meterHi ate tenmars light meter any good and are they neededSetup. Lighting
4y ago
2
Solved
Bebiboukush
Lightning and grow box?Hey, thanks for the answers about the pot, now I'm wondering about the lighting.So if the germination goes well, we'll have 6 plants, what type of light do you recommend?For now we have 3LEDbulbs of 12W, I think we need to upgrade... And Is the grow box a great idea?(size?)thanksSetup. Lighting
4y ago
2
1