Nevergood's high power garden

febisfebi

febisfebi

Well-Known Member
@nevergoodenuf So I caught up on your thread, and it looks like 250 is about the sweet spot on 3618's? any idea how much it drops when u go up to 300? I asume your using the hlg-240-c2100? also, do you have a line on the b&w #458 holder for these at a good price, and what are you paying for those sinks, and where at? i'd sure like to grab some of all this sweet gear for the right price, which it sounds like they are. The sinks are my only concern. I have some ideas for active cooling on some lower wattage passives, but i'd like to do it by the number if it doesnt break the bank.
Thanks
 
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nevergoodenuf

nevergoodenuf

Well-Known Member
Yesterday I was able to check out a friends room that has 3 gavitas and 3 SE 1000w and 1000w COBs. All the tallest plants went under the gravitas but the led and SE side started the same. The COB fixtures were hanging the wrong direction and much closer to the edge, so today he is going to center the lights up better and turn them the right way. Even with that disadvantage they all are on par with everything else, just shorter. Another thing I noticed, was the 3500k looked very blue next to the HPS, unless he has one with 4000k. I will have to have him check.

IMG_20161127_191404075_HDR.jpg IMG_20161127_191418293_HDR.jpg
 
nevergoodenuf

nevergoodenuf

Well-Known Member
I forgot to mention. I brought a lux meter to get an idea of what he runs at the canopy and it is a staggering 200,000 lux. For him that is the sweet spot. It didn't matter if it was DE or SE. He had my light at only 110,000 lux, so when he rotates them he will be lowering them to 16" to get 200,000 lux to match.
 
nogod_

nogod_

Well-Known Member
Makes sense, HPS is 2200k so even a 3000k light is going to look blue next to it.

nevergoodenuf said:
Yesterday I was able to check out a friends room that has 3 gavitas and 3 SE 1000w and 1000w COBs. All the tallest plants went under the gravitas but the led and SE side started the same. The COB fixtures were hanging the wrong direction and much closer to the edge, so today he is going to center the lights up better and turn them the right way. Even with that disadvantage they all are on par with everything else, just shorter. Another thing I noticed, was the 3500k looked very blue next to the HPS, unless he has one with 4000k. I will have to have him check.

View attachment 3841083 View attachment 3841084
Click to expand...
 
nevergoodenuf

nevergoodenuf

Well-Known Member
Well, as you can see in the picture above, the light isn't hitting the top of the tallest ones very well. I made the mistake of putting the taller girls on milk crates thinking they would run up the wall more, but the barely stretched and now are getting less light up top. I didn't want to add more power, so I just bridged two more CLU058 3618 onto a HLG240. So if the math on the heatsink is right, I am only a 10*c above room temp. The taller 2 have 4 COB's @ 60 watts and 35*c and the other four are running @ 120 watts each and 46*c. I could say this is my most efficient run so far. Maybe I will add 4 more and have them all at 60w.
After a visit to a friend that runs both SE and DE HPS, I noticed he is at 200,000 lux everywhere, so that is the new target @ canopy for me.IMG_20161204_110247028.jpg
 
ttystikk

ttystikk

Well-Known Member
nevergoodenuf said:
Well, as you can see in the picture above, the light isn't hitting the top of the tallest ones very well. I made the mistake of putting the taller girls on milk crates thinking they would run up the wall more, but the barely stretched and now are getting less light up top. I didn't want to add more power, so I just bridged two more CLU058 3618 onto a HLG240. So if the math on the heatsink is right, I am only a 10*c above room temp. The taller 2 have 4 COB's @ 60 watts and 35*c and the other four are running @ 120 watts each and 46*c. I could say this is my most efficient run so far. Maybe I will add 4 more and have them all at 60w.
After a visit to a friend that runs both SE and DE HPS, I noticed he is at 200,000 lux everywhere, so that is the new target @ canopy for me.View attachment 3845557
Click to expand...
BEWARE of matching those lux while using better spectrum lighting, lol

I'm getting better results at less than 38W/sq ft of COB LED than I got at 60W+/sq ft of HPS. In fact, my plants may actually be getting more light than they can efficiently handle outright.
 
ttystikk

ttystikk

Well-Known Member
nevergoodenuf said:
I am only running 25w per square foot here. My friend is running even closer on five footers.View attachment 3845583
Click to expand...
nevergoodenuf said:
His are also running @ 250w per COB and my hottest is only 120w.
Click to expand...
I'm running CXB3590 at 54W, four to a module, each of which pulls 225W. Four modules per 4'x6' trellis panel is encroaching on the ragged edge of too much light, and my next refit with these will see me using only 3 modules per trellis, for 28W/sq ft.
 
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