LIGHT DISTANCES
- Thread starter keesey
- Start date
Heres one for HPS
ITryToGrow
Member
Umm, maybe I don't understand the question... but shouldn't the answer be: "as close as they'll let you"?
CharacterZero
Member
i dont think that being as close as possible is always better. i would go by the chart. I yielded more when I followed that chart than I did when i got my magnum xxl like 7 inches away. i figured if i got closer I would yield more. i found that some of my colas were huge when i got that close, but I had a lot more big colas when i kept it about 10 or 11 inches away. so I yielded more. thats just my experience
ITryToGrow
Member
Hmm, that's interesting... I got the utmost respect for your experience, but I would sure like to understand the science behind that?
Especially since I also use magnums (first run with them, check my sig) and I have them like 6-7 inches from the closest tops.
Walt Jabsco
Member
invest in a light meter and watch the exponential loss of light penetration per inch. it will change your whole thought of how much light you are really losing.
Maria_Vanessa
Member
Is their a similiar chart for CFLs?
Thank you every one i really appreciate the info i am farly new to this. i am very happy i didnt get replies that were like "check this forum" or "why didnt you search it"
for my first post on this site and getting personal knowledge and experiance i give everyone here a +
i am planning on useing a 400w hps and mh to grow 3 plants in a 2x4 room. still dont know the water supply yet but from seed to veg i have been useing aquaponics and 8 t8s and 2 300w cfls, along with a 75w hps that was laying around. all of them responded good to the HPS when it was added. i will put up some pics tommorow in my albums.
THANK YOU
for my first post on this site and getting personal knowledge and experiance i give everyone here a +
i am planning on useing a 400w hps and mh to grow 3 plants in a 2x4 room. still dont know the water supply yet but from seed to veg i have been useing aquaponics and 8 t8s and 2 300w cfls, along with a 75w hps that was laying around. all of them responded good to the HPS when it was added. i will put up some pics tommorow in my albums.
THANK YOU
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junior_grower
Active member
Not that I have been able to find to date, you can refer to the MH or HPS chart and look at the smaller bulbs sizes and get a starting point for your CFL's.
Maria_Vanessa
Member
Thank you very much.
When in doubt, use the back of your hand. Place as near to the lamp as is comfortable. Not what you can endure, where it's comfortable. That's your distance.
