Temperature
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Growing_Rockets
Lux Meter Apps on SmartphonesWhat are your thoughts on Lux meter apps? The app on my Samsung Galaxy S10+ is showing 16,600 Lux at the tops of the seedlings, and converting that to a rough PPFD shows 222.55/umol/s/m². Reading more, 15k-45k Lux and 200-400 PPFD is good for early veg.
What are your thoughts?
Week 1
Setup. Lighting
5y ago
8
4
Solved
Eva16
SetupHow many lamps 600w hps in room 3.30 with 3.30 or 13m² i think to set 6 lamp is it possible?Setup. Lighting
5y ago
3
3
Solved
Capo420
Lighting ChangeOkay, I feel like I am asking a lot of questions so let me apologize for that. Lol. So my plants just seem to be behind most people's I see on here.Is it too late to change my lighting schedule? My theory was northern hemisphere gets many days 24hr lighting. Good or Bad?Setup. Lighting
5y ago
1
1
Solved
NonameGrowDude
Led light for a small seedling / early veg space 80x40x80cmThe plants to use the space to start seeds and veg them little bit until I transplant to final pot in a flower tent.
I don't have much height so is looking for a light that the plants can be close to.
Any suggestion for led or should I just go with t5?Setup. Lighting
3y ago
2
Solved
Hades93t
LedHi guys I would like to know if some of you guys already use SF 2000/SE3000 from spider farmer, and green sun shine 180w ?
I’m lost between those brands, can someone help me out aha, I’d love to buy one. I’m gonna buy the tent that’s fits the led init obviouslySetup. Lighting
5y ago
1
1
Solved
Smokeforall
LightingIs 2k watts to much light for a 4x4.x6.5 tent with only 3 plantsSetup. Lighting
5y ago
3
3
Solved
Mrgreengrinch
Mars hydro fc 4800 height to seedlingsHi, 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
Bongkhan
UVB lightingHello fellow growers.. so did anyone use supplement UVB light and get any noticeable difference ?Setup. Lighting
6y ago
2
1
Solved
Pupper
What’s the ideal amount of LED light for top quality in a 4x4 tent.I’m exclusively looking to grow top end quality.
Already can with HPS setup but wanting to switch.
Is 480w Kingbrite LED quantum board with 385,660,730nm enough for this or do I need more?
Any other suggestions? Aliexpress/Alibaba manufacturers preferred due to shipping costs.Setup. Lighting
5y ago
4
4
Solved
GingFreecss
Light: much Power less hoursHi everyone,
I'd want to decrease the hours of light to give the plants the impression that winter is coming, but I'd want to add a led to increase the power of the light. Can I apply both this ideas?
Thank for your attentionWeek 6
Setup. Lighting
6y ago
4
4
Solved
RealTrees_uk
Why is my autoflower only this big at nearly 5 weeksHello I’m brand new to growing so sorry about the stupid questions. every plant I have grown upto this point have all been really really short even for auto flowers what could this be ? Iv been using a MH hps 400w setup but switched to leds today also will this improve anything.
Plant. Too short
Plant. Other
Setup. Lighting
6y ago
3
3
Solved
Erasmus
How long should I wait to switch them to 12/12 hours light?Week 4
Setup. Lighting
6y ago
1
5
Solved
tricombo420
Tempo indeterminadoI just got home and I have no power, because of the company, some neighbors are out too, I don't know for how long maybe 4 hours.
I have 4 plants in flowering and one about to enter flowering, autoflowering, will it harm them, can they get stressed?Setup. Lighting
5y ago
1
2
Solved
Smokescreen420
Temperature differenceWhat do you guys think is the optimal temp swing between lights on and off??Week 2
Setup. Lighting
5y ago
8
4
Solved
valiotoro
FC-E6500Im using a 5x5ft,Anyone know how high to hang the MarsHydro FC-E6500 thru seedling/veg stage?diming?Setup. Lighting
4y ago
1
1