Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
HID to LED mid grow
Rangaku
started grow question 4y ago
Has anyone ever moved a plant from HID lights to LED during flower ? Keen to hear from your experience as it’s looking likely that I’ll need to do exactly that in the near future .
Solved
Setup. Lighting
2 likes
HerbalEdu
answered grow question 4y ago
yeah i did it last grow, switched from a 250W hps to SF2000 200W beggining of third week of flowering, the plants didn't seem to bother at all.
1 like
Complain
Selected By The Grower
M3_Growing
answered grow question 4y ago
Hat meine Pflanze im sommer in der blütenphase im Zelt und mittags dann mal für 2-3 stunden in die Sonne gestellt, da gabs keine Probleme.
1 like
Complain
Ultraviolet
answered grow question 4y ago
Light is light.
1 like
Complain
Roberts
answered grow question 4y ago
Yes it can be done. A lot of times you may need to add a little more cal mag is about only issue. Plus Temps won't be as strong. Good luck. 🌱🌱🌱
1 like
Complain
Lazuli
answered grow question 4y ago
I did that years ago they love it i never turned back to hps
2 likes
Complain
Similar Grow Questions
Solved
Cc4mo
Colour lighting
Thanks to eveyone that replied to my last question, really means a lot! Another quick question about lighting I had was if I should have blue light for veg then red for flower or just have the mixed purple on for the duration of the plants life?
Setup. Lighting
4y ago
2
1
Solved
pvmhobo
raise light and power to get hight temps and better venting
so whats would be best option for me i have my light on 240w (25%) around 3 ft from plants my tent doesn't get over 74 and its not venting as much as id like my ppfd is around the 300 mark should i raise light and turn to 400w (50%)
Setup. Lighting
1y ago
6
5
Solved
BullWeedDog
Ayuda con mis plantas ya están en la 3 semana de floración.
Estoy cultivando en un espacio 1x1x2m, tengo un bombillo 600w, tengo problemas de humedad cuando el bombillo está apagado sube hasta un 80% y ya está en 3 semana floración, están muy cerca del foco a unos 10cm y se están poniendo amarillas las hojas de arriba, que puedo hacer??
Other. General questions
Setup. Lighting
Setup. Ventilation
4y ago
5
4
Solved
Growador
Led
Hi, i just started my new grow and i wanted to do an update of my led. I want to try so bad the sf 4000 from spiderfarmer. Does anyone of you guys have tried it and what did you think about it? Is is worth it?
Week 1
Setup. Lighting
6y ago
2
Solved
BigBeautifulWeed
300w COB CREE Distance?
I've put my 6 seedlings under a 300W COB CREE UFO light, atm is a 30cm distance from them, I do hope is not too close. I've only a 140cm height and more would be problematic to manage in the long period.
Week 1
Setup. Lighting
6y ago
2
2
Solved
FlyMeToTheMoon
Can you make an Auto flower by changing the light schedule?
Ok, before everyone jumps on this with the obvious answer - I understand that you don’t NEED to change the lighting for an auto to flower, but my question is can you, if you wanted to, flip an auto to flower by changing the light schedule to 12/12?
Setup. Strain - Autoflowering
Setup. Lighting
6y ago
3
6
Solved
iopiopiop
Not enough light? Help?
I think my flower is not getting enough light. How can I make do with the light on my balcony (that only hits the plant from the side for about 6 hours a day). Any tips or tricks for increasing yields in my "lightless" situation? (Growlights are out of the equasion due to space)
Week 6
Other. General questions
Setup. Lighting
6y ago
3
3
Solved
greenfingers007
How far does my LED light need to be
Currently growing Easy Bud Auto she's just over 4 weeks old my LED light is 300w and is currently 16inches from the canopy is this to far away??? i'm also growing in a 7.5 litre pot is this pot sufficient??? as Easy Bud Auto only reaches heights of 50-60cm indoors Thanks
Setup. Lighting
6y ago
1
1
Solved
Mel_Macallan
Led mounted on side wall instead of top
So I'm thinking about to build a pc grow box, just for seedlings. When they start to be bigger I'll move them to bigger grow box. I have a spare grow light but it's to wide to mount in top of grow box. So I was wondering if I could mount it on the side wall?
Setup. Lighting
5y ago
4
6
Solved
DogDoctorOfficial
LED Growing intenssity vs distance
Hi Guys , so i have a new led, in this case a https://lumatek-lighting.com/lumatek-zeus-465w-pro/. It's better to have it running 50% at 50 cm or should i rase it hier and incrice power to 75% ? still have 3 more weeks veg ahead and i'm doing 14h1h+5h4h ligth schedule Thanks <3
Setup. Lighting
6y ago
2
1
Solved
gkbasura
- I have a greenhouse ceiling that covers 50% of the terrace - should I grow the plants always under this ceiling, or if it is beneficial to expose the plants to direct sunlight? - If so, how old the plant has to be to expose it to the sunlight? I don't want to burn my seedling
Setup. Lighting
Setup. Seedling
Setup. Outdoor
6y ago
4
3
Solved
luvurgarden
Light stress
Hi there GD community, can anyone answer? If I lower the amount of hours of light per day will it help with stress being caused by my grow light being to close to my plant?
Week 9
Setup. Lighting
4y ago
1
7
Solved
ihatemycat
UV led strip
Has anyone tried or knows if there are any benefits to adding a UVA/UVB led strip? I currently have a 18w strip on one side of the growbox as a test, the specifications should be as follows: http://www.ledlightinghut.com/files/365nm%20UV%20SMD5050%20LED%20datasheet.pdf
Setup. Lighting
5y ago
1
4
Solved
Bretwalda
Light intensity for x2 SF1000 in a 2x2?
Just wondering what the dimmer should be on for 2x SF1000 in a 2x2, flowers are in about week 3
Setup. Lighting
4y ago
5
3
Solved
Middlereef
Seedlings
This is my first grow and waiting for them to sprout out, I first soaked them in water over night on a seedling heat mat then put them into soil in these pots and into the plastic propagator in a dark room, should i take them out put them under lights now or wait til they sprout?
Plant. Other
Setup. Lighting
Setup. Seedling
5y ago
3
4
Solved
cheesyx
Review this model or help me create a DIY COB plus IR plus UVB grow light.
I've very limited variety of lights in this country so this is all I can find. Also there are no suppliers who provide spectrum charts or any temperature values for those lights. My goal is to make it with the best possible light spectrum. Having IR's also will help on cold days.
Setup. Lighting
6y ago
1
Solved
BioGrowKing
2 Lampen
Ich habe mir von Amazon eine Lampe bestellt wahrscheinlich wird sie nicht die Superleistung haben aber ich dachte mir falls ich mal Blüte mache und ich doch noch ein paar Samlinge habe könnte ich diese trennen. Was haltet ihr davon ? Momentan dient sie nur als Unterstützung
Setup. Lighting
5y ago
1
1
Solved
d0cterstrain
Grow equipment
hey everyone. I'd like to ask if I could get help get grow equipment shipped to me in Africa. I can't find any hydro stores that have all i need that ship outside the USA. I'm in Ghana, West Africa. and I will be grateful for websites or directions to anyone that can help. thanx
Setup. Lighting
5y ago
4
Solved
TSKWJNW
Could the seedling be burned?
Could the seedling be burned at 53cm high from the light on the third day of life? I want to remind you that it is a MarsHydro TS-1000
Week 1
Leaves. Tips - Burnt
Other. Other
Setup. Lighting
6y ago
5
3
Solved
arcanegrow
Light Decrease, yay or nay? (I'm in no rush)
SHOULD I DECREASE LIGHT TO 10 HRS TO SIGNAL TO THE BUDS ITS SNIPPIN' TIME? I'm in no rush, only that the light setup is not ideal for younguns! Don't wanna bully them til they're frail and weak... and not dank.
Week 11
Setup. Lighting
5y ago
1
4