Hi Grow Bros: Regularguy : All the lights I tested were in the same type of reflector so yes the results will be a little skewed, but since all the bulbs were tested the same way the results should be pretty good for comparisons. As far as the reflector cutting the surface area in half, that would depend on how well the reflector reflects.
Here are the foot candles for one bulb.
1'=300
10"=700
8"=900
6"=1200
4"=1800
2"=3000
1"=4500
Here are the foot candles for 2 bulbs.
1'=8,750
10"=125
8"=1500
6"=1800
4"=2500
2"=3000
1"=3300
400w @ 1'=2250
600w @ 2'=5000
1000w@ 2'=5200
40w floro @ 1'=1800
40w floro @ 1"=3700
There you go Regularguy, have at it.
morphious1 & choader:
You are absolutely correct. For the small grower EVLs are perfect. Because you have to keep the EVL so close to the plant to get the lumens large growers would need lots of EVLs to cover the squar footage of a large grow room, making them cost prohibitive.
Thanks again Grow Bros.
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