By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Light intensity too high? Lumatek ATS 300W Pro (816 µmol/s, 2.8 µmol/J)
Rinnastarted grow question 2y ago
Plant to light distance is now at 30-40 cm, closer than recommended by Lumatek (50 cm min). This is just an 80x80 tent, would ya'll recommend turning her down to 75%? I'm noticing some light stress and a light burn, so I guess that answers my question. But wanted to make sure.
likes
Robertsanswered grow question 2y ago
Yes you have answered your own question. I didn't see any bleaching or stress in pictures though. You should be at a point where she wants the most light for bulking. I run my whole grow with light at the top of the space. Just adjust intensity through out grow. Leaves will bleach white or yellow and canopy otop will yellow overall for light stress or burn. Good luck and happy growing 🌱
Ctrellis90answered grow question 2y ago
To be on the safe side yes I would always lower the light for the first week and gradually increase as she gets later into bloom and can handle more light intensity.
Every pheno is different though as I'm sure you know.
Hope this helps.
likes
Complain
Whiteybulger1814answered grow question 2y ago
Actually you can raise your light up or turn it down which is the "recommended" way to do it or you can check out Dr bugbee's video on PPFD, DLI and VPD and see what he has to say, after watching his videos and his suggestions after many many years of research I got all my variables in check and I ramped my light up 100% pushing 1700 PPFD and close to 70DLI and my plants could be any happier, buds so tight that diamonds are no longer classified as the hardest material on the planet....😂🤣..
I would suggest turning them down though it seems you might not be in the proper parameters for a full exposure to your light but here is Dr Bugbee's video explaining optimal environment for the most light you can push on a plant.
https://youtu.be/JwtkHxv_3pU
1 like
Complain
GrowingGrannieanswered grow question 2y ago
Yeah - you've already answered your own question... either turn the lights down or raise them up....
1 like
Complain
Similar Grow Questions
Solved
Tubington9
Power will be out for 24 hrs.Due to a storm in our region I’ve been informed my power will be out until likely tomorrow some time, i currently have one plant in week 8 of veg (photo fem), and 3 seedlings (autos) that will be in the dark for ~24hrs, anyone have experience with this, in sure they will be okSetup. Lighting
3y ago
2
2
Solved
Superjd
Right lighting at day 6 - fluo or HI as both availableRight 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 1500W immediately (30cm from plant) Thanks!Setup. Lighting
5y ago
1
Solved
ohighoan
Looking for advice growing plants indoor and outdoor at the same timeSo I’m wondering if it’s ok to grow a plant indoor and outdoor. Id like to put them out only on nice days then bring them back in. Come flower time around august id like to do the same thing. Will this stress them? And will this effect how much par I need to drive down on them?Setup. Lighting
Setup. Outdoor
2y ago
3
3
Solved
Newbiegrower420
Add on lightingHey Growdiaries. I’m about to start my 2nd grow but I’m not happy with my Viparspectra 300 for flower. I want a cheap add on for the flower stage? CFLs look like a cheap, low energy use, add on as I’m only growing two plants in a small w3xd2xh3 ft tent. Any advice plz & 🙏🏼Setup. Lighting
4y ago
1
1
Solved
valiotoro
FC-E6500Im using a 5x5ft,Anyone know how high to hang the MarsHydro FC-E6500 thru seedling/veg stage?diming?Setup. Lighting
2y ago
1
1
Solved
Joeynumbers
Please help me with light situationI have a mars tsl2000 and another one on the way I am wondering would a 1000 watt hps light to go with the 2 tsl2000 mars would be better than 3 Mars tsl2000 I have about 30 plants going and want to get the most and best possible I have plenty of room
Setup. Lighting
4y ago
2
3
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
2y ago
9
7
Solved
kevgrow
Day 3 - Seedling Stage - how much light is neededFirst Time Grower - Day3 Seedling Stage
Using roots organic soil and Mars Hydro 1000,, im not sure what strains they are, hoping one is a female
1- how much light is needed at this stage?
Currently set at 355 Lux x100
2- should i set it to 18hrs / 6hrs or just 24/hr of light?
Setup. Lighting
5y ago
2
2
Solved
Zappdoggy
Light ScienceHas anyone watched some Youtube videos by Dr Bruce Bugbee from Apogee Instruments? I find his lectures on lighting to be the most straight forward explanations I have heard yet. I found his vid called "The New 400-750 nm ePAR Range Explained with Dr. Bruce Bugbee" to be eye opening on lighting colours. I have changed my LED's based on a few of his vids. He explains what plants really want and those Burple lights just don't cut it.
For those that don't know he is a professor at the University of Utah that legally studies cannabis growth.
He takes the science of weed grow to a whole new level.Setup. Lighting
2y ago
5
3
Solved
Valleywestbuds
Light strength2 of my autos have been harvested and now I just have 1 mature plant mid flower and I've started my 3 other seedlings. I've got a tsw 2000 w/310 wts. Should I keep my lights at 100% for maximum growth or should I back off a touch to say 75 or 80%?
Setup. Lighting
3y ago
1
4
