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Search: Keyword(s): ; Posts Made By: jeffkrol
Forum: Lighting Today, 06:08 PM
Replies: 4
Views: 113
Posted By jeffkrol
We got "something"..

We got "something"..
Forum: DIY Today, 05:14 PM
Replies: 11
Views: 538
Posted By jeffkrol
Surface area / 22 = number of LED's 157 ...

Surface area / 22 = number of LED's

157



http://playsofrays.blogspot.in/2012/12/leds-made-easy.html
Forum: Lighting Yesterday, 06:28 PM
Replies: 9
Views: 184
Posted By jeffkrol
22.8 x 3.5 x 0.44 ...

22.8 x 3.5 x 0.44

http://current-usa.com/aquarium-led-lights/satellite-led-fixtures/satellite-led-pro/

might be a bit shady at the edges
Forum: Lighting Yesterday, 05:32 PM
Replies: 7
Views: 190
Posted By jeffkrol
Simplest answer.. ...

Simplest answer..

http://www.aquatraders.com/LED-Aquarium-Lighting-EVO-Quad-Freshwater-Plant-p/56576p.htm

my really really, dense, really messy "wild form" .. ;) 40b using cheap 3W chinese...
Forum: Lighting Yesterday, 01:24 PM
Replies: 9
Views: 184
Posted By jeffkrol
most would just add a diy replacement plate. ...

most would just add a diy replacement plate.
chopping a finnex by an inch is probably not doable
what is in there now T5, t8? It is possible to gut the ballast and add an LED retrofit tube....
Forum: Lighting 12-18-2014, 10:26 PM
Replies: 685
Views: 60,174
Posted By jeffkrol
Thanks but I'm still looking for a scrap one to...

Thanks but
I'm still looking for a scrap one to play w.. and do something like this:
http://scapeclub.org/forum/showthread.php?19336-MOD-Rework-on-a-Beamswork-LED-from-10K-to-6-5K
Only difference...
Forum: Lighting 12-18-2014, 10:04 PM
Replies: 3
Views: 235
Posted By jeffkrol
Whites appear fairly high K.. but we shall see.

Whites appear fairly high K.. but we shall see.
Forum: Lighting 12-18-2014, 08:16 PM
Replies: 7
Views: 276
Posted By jeffkrol
Newer for direct comparison: Low light -...

Newer for direct comparison:

Low light - 15-30 micromols of PAR - CO2 is not needed, but is helpful to the plants
Medium light - 35-50 micromols of PAR - CO2 may be needed to avoid too many...
Forum: Lighting 12-18-2014, 07:22 PM
Replies: 7
Views: 276
Posted By jeffkrol
that is a good question...... On a...

that is a good question......


On a personal note, and for no particular reason, I find those numbers a bit high myself..

http://www.plantedtank.net/forums/showthread.php?t=160396

But it...
Forum: Lighting 12-18-2014, 05:22 PM
Replies: 7
Views: 276
Posted By jeffkrol
Depends..... ;) ...

Depends..... ;)

http://i573.photobucket.com/albums/ss176/Hoppycalif/PARSUMMARY.jpg
Forum: Lighting 12-18-2014, 03:23 PM
Replies: 685
Views: 60,174
Posted By jeffkrol
That high K was always a personal thing.. Know...

That high K was always a personal thing.. Know anyone who would replace some of those blue for lower color temps.. like 3500k??
You know as you see w/ the BML, when the tank fills in it is not soo...
Forum: Lighting 12-18-2014, 01:43 PM
Replies: 3
Views: 235
Posted By jeffkrol
Just an interesting find

New LEd fixtures are coming out, and will continue to as LED tech gets more advanced.
Thought this one was of interest.. though no real advice on "robustness" or really application..Probably based...
Forum: Lighting 12-18-2014, 04:36 AM
Replies: 4
Views: 169
Posted By jeffkrol
i'm pretty sure you'd have to check w/ Current on...

i'm pretty sure you'd have to check w/ Current on that. At one point I know they had a frequency problem, like your TV remote would turn on the Current.. and were talking about changing that.. If...
Forum: Lighting 12-18-2014, 04:27 AM
Replies: 12
Views: 503
Posted By jeffkrol
well actually a lot of freshwater do do strips.. ...

well actually a lot of freshwater do do strips..
http://www.plantedtank.net/forums/showthread.php?t=545113&page=16

and very few reefers would do like the above.. at least as a cursory look at ...
Forum: Lighting 12-17-2014, 10:09 PM
Replies: 6
Views: 207
Posted By jeffkrol
too much ligt or too high of a cost?

too much ligt or too high of a cost?
Forum: Lighting 12-17-2014, 07:55 PM
Replies: 6
Views: 207
Posted By jeffkrol
Normally I'd advise something like this: ...

Normally I'd advise something like this:

http://www.aquatraders.com/LED-Aquarium-Lighting-EVO-Quad-Freshwater-Plant-p/56576p.htm

but if measured I think it was close to a lateral move...though...
Forum: Lighting 12-17-2014, 02:05 AM
Replies: 9
Views: 314
Posted By jeffkrol
Which one? http://www.aquariumdimensions.com/

Which one?
http://www.aquariumdimensions.com/
Forum: Lighting 12-17-2014, 02:01 AM
Replies: 17
Views: 597
Posted By jeffkrol
Beautiful tanks.. but the question is can you do...

Beautiful tanks.. but the question is can you do the same w/ CO2 and nutrient balanced to a lower light regime.

I really have no problem w/ over lighting a tank w/ LED's.. dimming is cheap and so...
Forum: Lighting 12-17-2014, 01:52 AM
Replies: 2
Views: 176
Posted By jeffkrol
http://www.plantedtank.net/forums/showthread.php?t...

http://www.plantedtank.net/forums/showthread.php?t=742945
Forum: Equipment 12-16-2014, 10:55 PM
Replies: 9
Views: 253
Posted By jeffkrol
that slows mine down... Lots of stuff grow...

that slows mine down... Lots of stuff grow inside those hoses..
Oh and the spray bar holes..
Forum: Equipment 12-16-2014, 09:27 PM
Replies: 5
Views: 174
Posted By jeffkrol
Search is your friend. Just be aware not all...

Search is your friend. Just be aware not all bellows needle valves are the same..
http://www.plantedtank.net/forums/showthread.php?t=135669


you need the exact part number to know for sure..
Forum: Lighting 12-16-2014, 09:58 AM
Replies: 17
Views: 597
Posted By jeffkrol
We could discuss why one feels they need 100PAR...

We could discuss why one feels they need 100PAR at the substrate.. That might be fun.. ;)
Forum: Lighting 12-16-2014, 09:44 AM
Replies: 6
Views: 234
Posted By jeffkrol
Understood, though flea bay may have been a...

Understood, though flea bay may have been a different story..
Forum: Lighting 12-16-2014, 09:43 AM
Replies: 9
Views: 314
Posted By jeffkrol
Sure but you sacrifice some "color" for...

Sure but you sacrifice some "color" for growth..
Forum: DIY 12-16-2014, 09:12 AM
Replies: 11
Views: 538
Posted By jeffkrol
That should be fine. BUT this tank is very large...

That should be fine. BUT this tank is very large and a bit beyond my "comfort zone" of napkin calculations..

That said, using a typical greenhouse recommendation for growth of plants 405W over...
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