How Far to Keep Light From Plant... Pics Included

Snow Crash

Well-Known Member
Snow Crash.....


I'm impressed! :)

+REP
I went to send you a PM but alas, no luck. Thanks for the +rep. I hope we can all incorporate energy loss into our thought process and move out of HPS lighting towards something better. I mean, we have cell phones that can... do just about everything except a hand job and we're using lighting tech that's been around since the 60's and is barely different than street lights. It can be done with HPS, just like it used to be done with Home Depot style strip T12 fluro's.

LED had its go of things, but piddled out. Just not enough casting power.

Wait for plasma fella's. They are pricey as shit right now. You can check out these or you can DIY with a plasma TV ballast and 70w bulb for about $400. These bulbs are used to grow coral, under water, at the Monterey Bay Aquarium. They produce near sunlight replica spectrum. A 250w plasma system is a 600w HID equivalent, and it produces less heat, with more PAR and a near perfect CRI.

For now I think CFL and T5 are the best for seedlings. Some day soon though... Plasma for everyone!
 

jondamon

Well-Known Member
I went to send you a PM but alas, no luck. Thanks for the +rep. I hope we can all incorporate energy loss into our thought process and move out of HPS lighting towards something better. I mean, we have cell phones that can... do just about everything except a hand job and we're using lighting tech that's been around since the 60's and is barely different than street lights. It can be done with HPS, just like it used to be done with Home Depot style strip T12 fluro's.

LED had its go of things, but piddled out. Just not enough casting power.

Wait for plasma fella's. They are pricey as shit right now. You can check out these or you can DIY with a plasma TV ballast and 70w bulb for about $400. These bulbs are used to grow coral, under water, at the Monterey Bay Aquarium. They produce near sunlight replica spectrum. A 250w plasma system is a 600w HID equivalent, and it produces less heat, with more PAR and a near perfect CRI.

For now I think CFL and T5 are the best for seedlings. Some day soon though... Plasma for everyone!
this is very true about the future could well be plasma but it seems a bit overkill at the moment with the amounts of filtration is has to go through in order to be useful to plants.


J
 

chillwills

Well-Known Member
When we grow indoors, we are providing our plants direct light for hours on end. There is no shading, clouds, or periods of extreme horizontal placing of light sources, as is the case with outdoors. Young seedlings and fresh cut clones do not have the ability to weather 18-24 hours of direct intense light. Unlike inside, outdoors plants get breaks with clouds, shade, and the fact that the sun isn't overhead all day long like it is inside a grow room.

Maybe if you weren't so anal retentive, you would be able to think outside the box and come up with reasoning like this on your own? People aren't being anal, thy're passing along experience.
Good point. Also in nature you will see seedlings emerging under a canopy of fully grown plant and trees. They will grow, get big to compete for light.
 
Top