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Back to Grow Questions
Ppfd?
2x2growing
started grow question 5y ago
What ppfd do you guys recommend for plants in veg? I’m finding that my light can be too strong at max power even at a 24” distance.
Solved
Week 6
Setup. Lighting
likes
HeavyHittah
answered grow question 5y ago
250 PPF for seedlings 400 to 600 for veg 600 to 850/900 in flower.
1 like
Complain
Selected By The Grower
GMSgrows
answered grow question 5y ago
Put your hand under the light at the height of your canopy., if your hand feels comfortable under the light for 1 minute then your girls will be fine. Cheers
2 likes
Complain
Similar Grow Questions
Solved
traxxx
which kingbrite light to get
hey im not sure which kingbrite or meiji QB to get Best the 0 + 0 freight 480 Watt Meijiu Samsung with 281B QB288 LED mix 3000k and 660nm or mabye 2 of these 7.66 - 2.66 To USA, KingBrite 240W Full spectrum led grow light i like the free shipping and the 15mm heatsi
Setup. Lighting
5y ago
1
Solved
GermanGrows
Panels vs beams
Why is the flowering footprint on a spider farmer sf-4000 5x5 but the Mars fc-4800 is only 3x3 flower with more watts?
Setup. Lighting
4y ago
1
5
Solved
DrJones
Upgrade from 300w mars hydro TS to FC/FCE?
Will I get noticeably better quality results like denser heavier buds and more resin if I upgrade my light from mars hydro TS series to a bar light with higher red spectrum?
Setup. Lighting
3y ago
4
Solved
43215gehr
Lux Light Meter
Hi Growers. Has anyone used the Lux Light Meter App for your grow lights ?
Setup. Lighting
6y ago
1
Solved
DankCityCeo
Help please
Does it matter if I have one white light led and one purple?🤷♂️🏾🙈
Setup. Lighting
6y ago
1
1
Solved
Brebzzz
Put light
i put the seed in the soil , can i put some light ( right now i put them under 20 /100 intensity under the spider light ) i have right or i do something wrong ? thx for the answer
Setup. Lighting
5y ago
3
4
Solved
Mrgreengrinch
Mars hydro fc 4800 height to seedlings
Hi, so this is my first time useing led I am useing a mars hydro fc 4800 and currently have it sitting 43 cm above my seedlings on the lowest light setting just wondering if any one could give me some guidance as if should be closer or further away and what power to be on thanks
Week 1
Setup. Lighting
5y ago
1
1
Solved
Finniegrow
When to lower light intensity?
When is the right time to lower light intensity? I'm on 5th week of flowering, should I keep my lights on max or reduce the power/increase the distance to plants? I have around 1000W of Led's at 35-60cm distance from the tops. I see no burning/bleaching or anything like that.
Other. General questions
Setup. Strains - Photoperiod
Setup. Lighting
2y ago
9
7
Solved
Percy
Have a 50x50x100cm tent with mh ts600 4'blk orchid fan, think im gonna run it well with scrog and plenty of fim/top bt i have a 70cm 4 wk flowering auto outside can i put this in with light 30cm above and run it for flower in tent now? Or chop half way and run it as say test ru?
Setup. Lighting
Techniques. Topping
Techniques. Other
4y ago
5
Solved
Superjd
Right lighting at day 6 - fluo or HI as both available
Right lighting at day 6? Very happy that all germination looking good on day 6 from seed. I could either continue with this compact fluorescent bulb (15 cm from tiny first leaf) for another week or two OR switch to full HI 250w immediately (30cm from plant) Thanks!
Setup. Lighting
6y ago
1
1
Solved
amir930
Growing lamp
Im currently using 45W florescent 6500k for the seedling stage. When do you think is the best time to start using the 400W HID with a Cool Tube and how far it should be from the plant?
Week 1
Setup. Lighting
5y ago
1
1
Solved
MomoCookie
Hallo Wollte bald 2x Strawberry Pie Auto von Fastbuds probieren. Und bin mir bei meinem Equipment unsicher Alle Daten die ich euch geben kann seht ihr in dem Bild! Ist die 300w Lampe zu Hell für das Zelt? Falls die Lampe in Ordnung ist wie hoch sollte ich sie hängen? DANKE :)
Setup. Lighting
5y ago
1
Solved
Fusion
LED Brand
Any one familiar with Sun Raise LED. Scored a 1000wt for 60$ yesterday. Lux test shows 250k on veg /bloom , 500k overdrive. Wondering how the plants like it?
Setup. Lighting
6y ago
2
5
Solved
Dillsnills
What distance should I have my ViparSpectra p2000 at for week 3 of Veg? Glueberry Og Auto
I'm running a ViparSpectra p2000 true 200 watt, what distance should I have it from my 2 plants? I have it at 22 inches right now and what percentage on the dimmer? It's at 60% now, week 3 Glueberry Og Auto Dutch Passion. Ff happy frog, fox farm nutes humboldts secret, sideXside.
Plant. Other
Setup. Strain - Autoflowering
Setup. Lighting
5y ago
3
3
Solved
Jojoman
Greenhouse times ending
Hi good people of GD My random seed survived 2nd week in Greenhouse. Luckily the weather is hot for end of September however i know i have to shift to indoor. When should transplant to a bigger pot and when?
Plant. Too tall
Setup. Lighting
Setup. Outdoor
5y ago
3
3
Solved
AlienScrOG
co2
co2 ... how long does a 1 kg cylinder last 5 square meters of external surface of the box approximately 10-15 cubic meters around the box outside the box box measures 50 cm x 120 x 190 high now you can do it
Setup. Lighting
Setup. Ventilation
Feeding. Other
4y ago
4
4
Solved
Diddes999
Mars Hydro TS1000 ,height and dimmer %'s?
For a single mars hydro ts 1000 does anyone recommend Height and dimmer strength for each stage? Say in an 80x80cm tent with three autos. I've seen so many conflicting heights and dimmer %'s. Big thanks
Setup. Lighting
5y ago
1
1
Solved
MarkGreenThumb
Old School Outdoor, to New School indoor. =D
Old School outdoor Grower. First time indoor Grow, first time using tents. Any and all advice along this way is welcomed. Some questions I have now are... 1. When should I switch form my CFL lights to my HPS's 2. Should I think about switching from HPS to LED's?
Week 1
Setup. Lighting
5y ago
3
3
Solved
CreamOfTheCrop
Fan vs Fanless LEDs
How effective are heatsink LEDs? I'm not sure if I should go with fanless (like Mars Hydro SP150) or with a fan (Mars Pro II Epistar 120). I struggle with heat, when the tent is closed it gets to 29-30 degrees with humidifier in full swing (HID lights) and I want to close it soon
Setup. Lighting
Setup. Ventilation
6y ago
3
3
Solved
Wakesk8
Spider Farmer SF1000
Hello guys I’m going to buy the spider farmer sf1000 I saw its becoming popular and I would try along with my Cultilite Led 180w Cobe in a tent 80x80x180..I think I will have a plenty of light and massive buds ? Cultilite generate 22C degree..
Other. General questions
Setup. Lighting
5y ago
2