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Watts/lumens per square foot ?

  • Thread starter Thread starter Texas Kid
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Watts/lumens per square foot ?

Texas Kid 279 Replies 97,453 Views
Page 7 of 14 · Replies 121–140 of 280
#121
Cap, I believe I haven't seen Texas Kid's input on this thread in... years. I believe he's blissfully unaware of the discussion he's sparked here, so I mentioned it in his 'battlefield earth' thread. Like you, I hope to see his perspective here soon.
 
#122
what do you guys think of the vert "one bounce and out" reflectors?
 
#125
100 watts/ft2 overhead in 1ks
1/3 that, approximately, positioned lower in vert 6s.
Tall enough plants to use all that light.

Mother_ab5f1a_172896.jpg
 
#126
Capulator said:
WTF?!?!? HOw much is it to buy?
Click to expand...
They range from $200 on up to about $800. I looked them up on amazon the other day. The one I mentioned, with data logging, was about $350 if memory serves.
 
#128
I believe certain nutrient delivery systems impart potential for an extra .1-.25 gpw, all else equal.
Heath.
 
#133
#134
dankworth said:
Any of them involving low root mass.
Bucket systems.
Anything where we follow Krusty's advice and flow nute solution past root tips.
Click to expand...

This is what led me to choose RDWC as my hydro system of choice. This, and ease of operation, construction, low price....
 
#135
150 watt 14k phoenix hexarc blue(de) gets 33,400 lumens.
Over 220 lumens/watt.
Some of these on the sides of the canopy, lower, the height of the vert 6s would be good maybe.
 
#136
ttystikk said:
This is what led me to choose RDWC as my hydro system of choice. This, and ease of operation, construction, low price....
Click to expand...
http://t3.invalid.com/images?q=tbn:ANd9GcRWD239LfMaI8WI9FIZaqdRxu1IElduZzD6BGuIyhg3aBPvwh6i
http://t2.invalid.com/images?q=tbn:ANd9GcSEkWZy5WUnWG-SoqD8hS7GaZ6CwbILYcfGPn0il1ep0MGJjXf1mQ
http://t0.invalid.com/images?q=tbn:ANd9GcQ2J4BDaLp0mEOmg9n7STsFikuhpv0lbc7UUVeNANHJBd3FDMDGYg
 
#137
dankworth said:
Vert bare lamp, surround it with plants, and surround the plants with reflective surfaces.
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Already doing that.

I'm serious, for micromoles @sqft those hoods can beat the horizontal overheads - on paper. Haven't seen one in action myself. There's at least one open-style version too.
 
#138
El Cerebro said:
Already doing that.

I'm serious, for micromoles @sqft those hoods can beat the horizontal overheads - on paper. Haven't seen one in action myself.
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It stands to reason that a vert lamp with that reflector could outperform a horizontal lamp in a regular reflector.
Wasn't someone somewhere advocating 4 250w lamps instead of 1ks?
Get them all close or something?

I was mainly thinking of the pale reflective women.
With the dimples.
Have to stock up on sunblock to keep their reflectivity above 90%.
 
#139
dankworth said:
Wasn't someone somewhere advocating 4 250w lamps instead of 1ks?
Get them all close or something?
Click to expand...
I dunno, anything below 600 seems pretty impractical to me, all those ballasts/cords? Doesn't seem worth it when you could have fewer lamps and deeper penetration.

Would those be normal vert lamps or spinning around in a gyroscope? (i see you picked the corn out)
 
#140
El Cerebro said:
I dunno, anything below 600 seems pretty impractical to me, all those ballasts/cords? Doesn't seem worth it when you could have fewer lamps and deeper penetration.

Would those be normal vert lamps or spinning around in a gyroscope?
Click to expand...
I was joking, some dude was advocating this I think.
I was thinking that 14 70w HPSs would be even better than a 1k.
 
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