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
Spider Farmer sf 1000 light height inquiry.
Troy_Farms
started grow question 6y ago
I am growing in a 2x2 spider farmer with a SF 1000, currently the light is 20" and only 80% power. It seems like a powerful light and don't want to overdue it. Should I move the light closer and turning up to 100% power for the rest of flowering?
Solved
Setup. Lighting
likes
MarijuanaFarmer
answered grow question 6y ago
More power = more yield, Turn it up all the way, watch the distance and heat and you should be right mate, use it for all its worth
1 like
Complain
Selected By The Grower
Qlimax
answered grow question 6y ago
Plants tell you everything....just look them closely and when u see first sings of anything.. u have to react....
2 likes
Complain
Similar Grow Questions
Solved
NonameGrowDude
Light recommendation
what led light would you recommend for a Secret Jardin DS150W (77x150x200cm)? It need to have a remote driver and be full spectrum. It could also be 2 lights.
Setup. Lighting
2y ago
2
Solved
SouthernIndica
Grow light upgrade importance
Importance of light spectrum? I'm upgrading my 5 small 15W lights with a 240w Grow Bar with Samsung LM281B diodes. My girls are growing and look fairly healthy but the speed is super slow. I'm installing the upgrade today, can I expect better results and speedier growth? 21w veg
Setup. Lighting
3y ago
2
2
Solved
docholiday
when to switch from 4k veg light to 3k
I have 7 3 week old plants under 165 watt of 4k quantum boards. They seem to be stack tight. my question should I switch them up now to 3k 240w light to get a bit more height... or what I think I should do, be patient veg them 4 full week under 4k then veg a week or 2 under 3k.
Setup. Lighting
6y ago
1
Solved
Popeofdope
Somone turned my lights on
Will 15 minutes of light in dark period effect plants.
Setup. Lighting
6y ago
2
3
Solved
jihun
Luma or marshydro fc
Hi Guys,What do you think that of 2 different lights?1. Lumatek Zeus series2. MarsHydrio FC seriesWhich is the better? ( or other hq led)I know the Mars is better price,but i would like to know which is the better in real life ? (No price to value to ratio,real experience.
Setup. Lighting
3y ago
1
4
Solved
Thalps
just wondering whether it would be worth increasing the lighting schedule to 18h or 20h. Its currently chilling on a 16h cycle
Week 3
Setup. Lighting
6y ago
2
2
Solved
Rush2112
45 watt Black Magic light?
I’m running a 45 watt led grow light. Instructions say to keep 2 inches from plant. Is this too close? Just don’t want to hurt plants. Thanks!
Setup. Lighting
6y ago
1
1
Solved
BlackXwidow
Ballast died during week 6 flower! Help!
1000 Watt ballast just died during first day of week 6, freakin is awful! New one will be here on Wednesday via amazon. Options till Wednesday 1. Leave plants in darkness till Wednesday 2. Use spare 600 watt HPS for a few days 3. Use 600 watt HPS 4. Use 450 watt LED 5. 3+4
Setup. Lighting
6y ago
2
3
Solved
Greenbean420
LED vs HPS - heat output
Hey - Does anyone know if theres any difference in the heat output LED vs HPS I currently have lumii black ballast dimmable 600w, however im using it at 250w and its usually always 27-31c in the tent. Im looking at buying the Mars Hydro TS3000 LED, or is it not worth it? Thanks
Other. Other
Setup. Lighting
4y ago
9
9
Solved
TheVillain
Growing out instead of up.
Please help out! I moved it into a new pot and topped it last week as suggested. Also new ViparSpectra light at 45cm away @80% power. Nutrients/food yet to arrive. It seems to just be growing out instead of up, and starting to see some white/ burnt looking spots. Suggestions?
Leaves. Curl down
Plant. Too short
Setup. Lighting
5y ago
1
4
Solved
odrex
Should I switch to 12/12 lighting? - Autoflowers not showing pistils after 5 weeks
Growing five plants (germinated Sept 8) including 3 Anvil and 2 BlackStrap autoflower strains from Mandalorian Genetics. The BlackStraps have been showing pistils since about end of week 3. No Anvil plants are showing pistils. Should I switch the lighting schedule to 12/12?
Week 5
Plant. Other
Setup. Lighting
5y ago
3
3
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
G46Go
Second light in one tent
3 fan, 1 carbon filter, humidifier works inside and the tent is 120x120. I have 1 240w qb inside, i like it but i want more yield. So my question is i buy second 240w qb would it be good or it would disturb the balance? Also im afraid maybe electric bill will be too much to hide?
Week 6
Setup. Lighting
6y ago
4
2
Solved
LesClaypool_777
Light issue
Im using 2 22 PAR LED lights for two plants of Purple Hulk. They are about 4 weeks old, and about 1 ft tall. This is my first time using an auto strain so im not sure about light and bloom change or when to do it if even needs to be done? Anyone got some pointers to help me?
Week 4
Setup. Lighting
6y ago
2
2
Solved
ManiPawPatrol
Led distance
I’ve got the lights at 50cm right now at 25% Planning to put it at 50% and 70cm height in the next few days. Any tips? Thanks 🙏
Week 2
Setup. Lighting
4y ago
2
2
Solved
Stoli_LeMonjello
Good T5HO flower combo, 3000K and PureBloom? http://www.growagromax.com/products/t5-grow-lamps/t5-pure-series/agromax-pure-bloom-t5-high-output-grow-lamp/
Thanks to all for your great advice! This is my first grow, currently in veg wk 5, using 8 x 6500K, 4’ T5HO. Flipping to flower in 2-3 wks, will use 4 x 3000K tubes and planning to get 4 AgroMax Pure Bloom tubes. Is 50/50 mix of 3000K and Pure Bloom a good combination of light?
Week 5
Setup. Lighting
6y ago
2
2
Solved
studente
Lighting
Wow. Thank you so much for the reply. I have been playing with LUX meter app and my light. I was bit skeptical about the lumens that I would get from the 15W but as it turns out, it receives well enough ppfd. Still skeptical about the spectrum i am having.
Week 2
Setup. Lighting
6y ago
1
1
Solved
Roberts
Know any sponsors for influencer growers?
Does anyone know of any companies that sponsor led lights or a company that sponsors nutrients? I also have a you tube channel I grow cannabis on and do reviews.
Week 12
Setup. Lighting
6y ago
11
2
Solved
pinkdragon
50W LED Sun-like Light distance to seedling (no tent)?
This is my first grow! How close should my 50W LED light be to my seedling while I wait for the MarsHydro TS600 to arrive next week? I have this light from amazon : https://www.amazon.de/gp/product/B07S1MRVRP/ref=ox_sc_act_title_2?smid=A20WFP7LQVUC91&psc=1
Week 1
Setup. Lighting
6y ago
2
Solved
Maskedcucumber
Which strategy with auxiliary grow Leds ? 3x20w Leds -Thanks !
Helps maturing but I wonder if buds are bigger. I used to put 3 extra lights 20 cm below canopy, leave many large leaves at the top and lollypop 30%. 30% is definitely not enough even with those 20w LEDS (50% is probably better). How do you use extra LEDS ? Where do you put them?
Week 10
Setup. Lighting
3y ago
9
7