Start My Diary
Start My Diary
Log In
Start My Diary
Home
Threads
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
Proper height for T5 dual lamps from seedlings during sprouting stage
rcs8718
started grow question 5y ago
I now have my seedlings in solo cups and they are just breaking the surface, what is the height I should have my T5 twin lamps from the top of the cups? I have it currently at about 4 inches from the top of the cups.
Solved
Setup. Lighting
likes
90sStoner
answered grow question 5y ago
I ran mine about 8” or pinky to thumb doing a hang loose sign for quick reference
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Frog35
LED light distance
Hey guys I'm kind of new to growing only been doing it for a little over a year. My girls grow really well they just don't get very tall I'm thinking it's because my lights are too close. Is this correct? Distance is 9 inches above canopy in week 6 growing critical 2.0 autos.
Week 6
Setup. Lighting
4y ago
11
7
Solved
m0use
LED Kelvin Temp 3000k-6500k
Is there a massive difference in colour temperature/kelvin of LED's if the lumens, PAR, watts, intensity and every other aspect you can think of is the same but its temp/kelvin is lower? I use a 6500k LEDs, may mix in or switch to 3000K for better flowers if its proven to work.
Week 10
Other. General questions
Other. Other
Setup. Lighting
7y ago
5
3
Solved
DabNinja710
I have a mars hydro 2000tws. My question is what hight should I have the light at seedling, veg, and flower stages. Right now its about 24" from the plants.
Week 1
Setup. Lighting
6y ago
2
5
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
2y ago
6
5
Solved
MomoCookie
Hii, I bought the Mars TS 1000 for my 80x80x180 tent. Can I expect a good harvest? !!!If all other factors are right!!! Thanks in advance! (If you have other suggestions, please keep it within a €150 range.)
Setup. Lighting
6y ago
4
Solved
savethehumanseh
How can I reduce the heat in my 5x5 tent (650w light bar/6" ac Infinity and a ton of fans) without AC? Do I have to leave tent open?
5x5 tent is in a kind of lung room (utility room) that stays around 20C/68F. The tent always seems to be at 30C86F with lights on. Ive added and moved fans, opened more intake vents. I have AC, but its -25C/-13F outside. Id like to drop the daytime temp 5ish degrees for flower.
Setup. Lighting
Setup. Ventilation
6y ago
2
6
Solved
GipsyGrow88
light output at 50 percent
Hey guys, I have this 360W LED light Maxibright Varidrive with 1040 µmol/s at a high efficiency of 2.89 µmol/J, full spectrum. I want to ask how to save the most energy with this light. Can I run the whole cycle at 50% power while keeping the light 20cm away from the plants? 100
Setup. Lighting
10d ago
3
Solved
Sticky_bandit84
Lights
Anybody know much about the dimmer on the spider farmer sf1000?! What wattages do you used during veg, flower etc..
Setup. Lighting
6y ago
1
1
Solved
The_garden_of_Vixen
Light distance
My plant grows really tall, and the distance to the lamp is only 3 inches now. Have no idea how to solve this problem. I have pictures in the diary
Week 8
Setup. Lighting
3y ago
4
5
Solved
Tommy_Pickles
Light intensity in a 4x4
Running 2 spider farmer SF2000 quantum led boards in a 4x4. 30 inches above 5 plants. Having alot of conflicting information on light intensity. I'm only 7 days in from germ and some are telling me 40% max and others are telling me 100% from seedling to harvest.
Setup. Strain · Autoflowering
Setup. Lighting
6y ago
4
2
Solved
Albgrow
Problem with light in veg stage
Hello guys! I hawe a problem! I have 1700w in my grow room and today i saw the 1000w its off. I im veg stage, 4 week. Maybe its off for 6 hour.
Week 4
Setup. Lighting
6y ago
2
2
Solved
jazzyman245
First time grower need help 2/2
Hi everyone this is my second post of the the question I asked 2 days ago most common answer was not enough light I use a 600w omega bulb with a reflector and the omega 600 ballast on 600w also here is an updated picture also only seems to be getting worse
Setup. Lighting
4y ago
1
7
Solved
girlwhogrows
Is this MarsHydro light the best choice for my 4x4?
Is the MARS HYDRO Smart FC-E6500 Bridgelux 680w the best option to use for my 4x4 tent. Will be doing 9 CBD auto flowers as a hobby. Thankyou community!
Setup. Lighting
3y ago
2
2
Solved
sloppyjohn
How to make stronger smell and flavour in DWC grows?
Hi guys. Just harvested my second ever harvest, and 2nd time with DWC. Using HPS, then CMH for last 2 weeks I'm really happy with buds, but the smell is a little less intense that I would like. I have used Cannaboost, which is supposed to increase flavour but I want more! :)
Setup. Lighting
Feeding. Chemical composition
6y ago
6
Solved
ganzigunnu
Vegetative Plants and UV?
as my plants grow bigger I added the second light in the tent but that one doesnt have switches for UV, IR so when I plug it in all the bulbs are working. My concern is to hurt them with this because they are still in the vegetative phase. Is there anyone who knows about ths stuf
Week 5
Setup. Lighting
5y ago
5
3
Solved
Yesbananaz
Telos 10 pro led to intense for seedlings?
Hi fellow growers! I have a question about telos 10 pro led light. Its not dimmable. Is it to intense for my auto seedlings even if I start at the top in my 2meter tent. Seedlings going to be in 11 liters pot , hight 25cm . So the distance between them is going to be like 150cm
Setup. Lighting
5y ago
2
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?
Week 2
Setup. Strains · Photoperiod
Setup. Lighting
Techniques. ScrOG
5y ago
4
3
Solved
Snider23
COB led light from AliExpress
Hi Growers! What do you think about this CoB led light ~30-50W from AliExpress. I received as a gift from my friend to combined it after 7-8 direct sunlight. Could it work in addition?
Week 5
Setup. Lighting
6y ago
3
3
Solved
Buddo
Is anyone else using Spider Farmer Lights ? How was the stretch on your plants using these lights ? My plants stretched from 10 inches to 30 inches in two weeks & another week of stretching left.😒 Not a big deal but I have a 60 inch tent , not a lot of room to LST.
Week 4
Other. General questions
Setup. Lighting
7y ago
2
3
Solved
idkwhatimdoing
LED light recommendation?
so going by my last question, i need a growlight. so i wanted to ask if theres a budget light for like 2 plants. i dont have a ton of space n im kinda lost on the topic. i live in europe so itd be great if it was a light i could get in my country too. germany's fine as well.
Setup. Lighting
4y ago
2
2