The Grow Awards 2026 🏆 
Luces en floración
IMCAGrowerstarted grow question 5y ago
Debería quitar los foco cfl o los puedo sumar al sodio de 400w? No tengo problemas de calor.
likes
GMSgrowsanswered grow question 5y ago
Good to leave any light you have, but I would recommend placing you HPS horizontally for max light to the canopy. Cheers
SpiderMiteanswered grow question 5y ago
Sure leave them. Just don't break them they have mercury in them. Toxic stuff.
1 like
Complain
Similar Grow Questions
Solved
LoveGrowWeed
more lamps or not?Hello brothers.
We have:
- Tent 150x150
- 9 plants Super lemon haze
- 2 lamps kingbrite 320w lm301h
We are currently in our 7th week of flowering. I have another free lamp of the same 320 watt.
Does it make sense to put another lamp in the tent for the last 4 weeks?Week 11
Setup. Lighting
4y ago
2
3
Solved
Mazgoth
HIGH TEMPERATURESHello,hope everyone is doing good,I need some help guys,today i bought the mats hydro ts1000 150W,really good lamp but I have a problem,the temperature is about 31,5/32,5C the max it goes,I have a lamp that i bought here in Greece,led grow light full spectrum 400W 68$Other. Other
Setup. Lighting
3y ago
5
7
Solved
Greenlady
Grow lightIs this any good? For a 2x4 closet. Green crack auto and kush xxl auto. Thnx.Setup. Lighting
6y ago
2
3
Solved
buddhi_coop
Grow LightsIs it okay to use an LED Light 1000 watt (4x4x80" tent) & a UV Light 1000 Watt in a 4x4x80" grow tent for 3 plants. I want more light, I have plants growing slowly so I'm hoping to adjust the amount of light I have would speed up their growth. LED is white spectrum & UV blue-vegLeaves. Tips - Burnt
Setup. Strains - Photoperiod
Setup. Lighting
5y ago
4
3
Solved
Nylanderfour20
Light cycle messed up do I have leverage for one mistake?Timer messed up the cycle and stayed on for an extra 12 hours.. So in total she was, for 24 hours in light... Soon as I noticed I manually turned off.
Now the question is.. It's messed up and now off when supposed to be on vice versa, does the one mistake matter so much, seeding?4y ago
4
3
Solved
Dillsnills
Should I support these seedlings or move them closer to the light? I added more soil to support them, let em go see what happens?Should I support these seedlings or move them closer to the light? They seem to be sturdy. Glueberry Og Auto, 60rh 75 day temp 70 night, ViparSpectra p2000 24 inches at 25% power. They keep stretching jus looking for advice opinions on what to do plzz, 7 day's old.Setup. Strain - Autoflowering
Setup. Lighting
Setup. Seedling
5y ago
3
5
Solved
Igrowneil
Hey anyone else in UK having temp problems ... I've I switched to hybird lighting
Today it's set as
12 hours HPS with 24 hours LED
AUTOS are doing amazing 👏 none the less there 20" inch day 29 entering stretch, been TOPPED and ScrOG will be applied soon 😀
Solutions ?Week 5
Setup. Lighting
4y ago
2
3
Solved
TheUk420Show
Telos Lighting Brand New Tech ?Hi Guys so what do you think to a brand new invention by GN in the uk fully water proof bluetooth ghost network end to end encryption dimmable by PPF number (first in the world) ?
I have been gifted one to test by GN after meeting the team at a grow expo. What do you think ?Setup. Lighting
4y ago
5
4
Solved
JSH1973
Opinions on these lightsHi guys
New here and getting in to growing.
I'm going to be using a closet in my bedroom, floorspace is about 80cm by 160cm and height 180cm
I was thinking about two of these lights
VIPARSPECTRA P1000
What do you think?
https://www.amazon.co.uk/gp/aw/d/B089NWHZDD/ref=ox_sc_actSetup. Lighting
5y ago
1
1
Solved
Joeynumbers
Please help me with light situationI have a mars tsl2000 and another one on the way I am wondering would a 1000 watt hps light to go with the 2 tsl2000 mars would be better than 3 Mars tsl2000 I have about 30 plants going and want to get the most and best possible I have plenty of roomSetup. Lighting
5y ago
2
3
Solved
Erasmus
How long should I wait to switch them to 12/12 hours light?Week 4
Setup. Lighting
5y ago
1
5
Solved
Valleywestbuds
Light strength2 of my autos have been harvested and now I just have 1 mature plant mid flower and I've started my 3 other seedlings. I've got a tsw 2000 w/310 wts. Should I keep my lights at 100% for maximum growth or should I back off a touch to say 75 or 80%?Setup. Lighting
4y ago
1
4
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
5y ago
1
1
Solved
Hisknibbs935
Hello,I'm gonna be running a test 6400k cfl vs sunmaster hps,been reading and reading and blue light crops up alot for veg so,I'm gonna grow one under the cfl one under the hps and one in the middle of the 2.will it shock my plant putting light schedule to 24 and adding the blue?Week 2
Setup. Lighting
6y ago
2
2
Solved
kevzzz
How much light does a seedling need?Is there a limit to what it can use? Could an LED grow bulb a couple inches away provide enough light? Up to what age? Thank you so so much. My first grow and I really appreciate it!
Specifically this one https://www.gelighting.com/led-bulbs/e2624/ge-grow-balanced-spectrum-br30#Setup. Lighting
6y ago
3
4
Solved
Natural_Medicine
Need help on the use of mars hydro ts1000 (first grow first use)Now i use 25% of light on Marshydro ts1000 (30cm lamp to plant) should i change to 50% at this growth or i need to wait for a few days. If yes what distance should i go for.
If no when is the right time, now is 9 days old (auto)(picture below)Week 1
Setup. Lighting
6y ago
13
2
Solved
Jmaninthemidde420
Can you use a 450 watt white led light to start seedlings? If so what distance should the light be and when should I make it closer? The reason I am asking this is because I don’t like transplanting autos as they are fragile to transplanting from what I’ve looked upSetup. Lighting
4y ago
1
1
