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Search: Keyword(s): ; Posts Made By: jeffkrol
Forum: Lighting Today, 01:30 PM
Replies: 2
Views: 131
Posted By jeffkrol
Too reef-centric for my taste.

Too reef-centric for my taste.
Forum: Lighting Today, 05:57 AM
Replies: 7
Views: 126
Posted By jeffkrol
you have low-ish light.. based on the type and...

you have low-ish light.. based on the type and density of the LED's (10W total).. A PAR measurement would confirm it.

A considerably stronger light.... ...
Forum: Lighting Today, 05:42 AM
Replies: 7
Views: 204
Posted By jeffkrol
I don't think I'd go quite that far.. PAR will...

I don't think I'd go quite that far.. PAR will increase in zones of overlap.
You will lose some of this increase the farther apart they are as you push light over the outside of the tank..
Forum: Lighting Today, 05:39 AM
Replies: 3
Views: 124
Posted By jeffkrol
Well, within a margin of error, the 2 are...

Well, within a margin of error, the 2 are probably pretty equiv. PAR wise..
I wouldn't make any decision based on that alone..

But if you think about it, you could get 2 of the Beamswork and have...
Forum: Lighting Today, 01:53 AM
Replies: 4
Views: 120
Posted By jeffkrol
I'm not going to be as diplomatic about the...

I'm not going to be as diplomatic about the drivers.. Get Meanwell LDD's...
Get a Typhon from Steves as a controller..

IF you go Epistar (or flee bay cheap) there is little incentive to under...
Forum: Lighting Yesterday, 01:31 PM
Replies: 2
Views: 99
Posted By jeffkrol
not much there worth saving.. Adding "as is" is...

not much there worth saving.. Adding "as is" is not really practical..

Best suggestion, and if I'm interpreting this right, is to see if you can cut a piece of aluminum barstock to clip in just as...
Forum: Lighting 01-25-2015, 10:17 PM
Replies: 9
Views: 243
Posted By jeffkrol
First: Which 36".. ?? 8-16 white LED's? One...

First: Which 36".. ??
8-16 white LED's?
One possible solution:
Take the lenses off.. as is, it will have poor front to back spread. The 40B is shallow enough not to really need them (I'm assuming...
Forum: Lighting 01-25-2015, 01:11 PM
Replies: 5
Views: 152
Posted By jeffkrol
http://www.aquatraders.com/LED-Aquarium-Lighting-B...

http://www.aquatraders.com/LED-Aquarium-Lighting-Beamswork-Freshwater-Plant-p/56413p.htm

or
...
Forum: Lighting 01-25-2015, 01:00 PM
Replies: 18
Views: 466
Posted By jeffkrol
Nothing in the picture.. it is th channel...

Nothing in the picture.. it is th channel selection:

Read more: http://reefbuilders.com/2014/02/24/aquaticlife-edge-led-handson/#ixzz3Pq056zeC
[/COLOR][/LEFT]

I consider dimming and control as...
Forum: Lighting 01-25-2015, 05:55 AM
Replies: 18
Views: 466
Posted By jeffkrol
Yes build/layout.. inc. light geometry and ...

Yes build/layout.. inc. light geometry and control of output (dimming/ programming)
kind of funny.. aquarium lighting falls between arch. lighting and hort. lighting.. arch maximizes (in a...
Forum: Lighting 01-25-2015, 04:29 AM
Replies: 18
Views: 466
Posted By jeffkrol
Thanks.. At this point I'd have to defer to...

Thanks..

At this point I'd have to defer to your "experts" regarding what can and can't be done..Though I'd question why drivers (which usually have a "family" and shouldn't be a problem to adjust...
Forum: Lighting 01-25-2015, 12:46 AM
Replies: 18
Views: 466
Posted By jeffkrol
I think so.. ;)

I think so.. ;)
Forum: Lighting 01-25-2015, 12:18 AM
Replies: 642
Views: 67,575
Posted By jeffkrol
someone elses measurements.. ...

someone elses measurements..

http://farm4.staticflickr.com/3740/8895781049_e51f34be6a.jpg
http://www.guitarfish.org/2013/05/30/satellite-freshwater-led-review-part-2-par-readings
Forum: Lighting 01-25-2015, 12:07 AM
Replies: 18
Views: 466
Posted By jeffkrol
yes it can be confusing.. Anyways this might...

yes it can be confusing..
Anyways this might help a bit..
http://www.1023world.net/diy/spectra/
A for fun start:
http://www.1023world.net/diy/spectra/dl/VJJ6.jpg
Forum: Lighting 01-24-2015, 03:00 AM
Replies: 18
Views: 466
Posted By jeffkrol
Nothing wrong w/ CREE I said I preferred Phillips...

Nothing wrong w/ CREE I said I preferred Phillips Lumileds..

http://www.mouser.com/Mobile/Philips-Lumileds/Optoelectronics/LED-Lighting/LED-Emitters/_/N-8usfdZ1yyvhk6/

Mostly because of the...
Forum: Lighting 01-23-2015, 08:38 PM
Replies: 8
Views: 285
Posted By jeffkrol
This and look up how to hack in a$3 PWM dimmer...

This and look up how to hack in a$3 PWM dimmer (hint between the power brick and the LED fixture.. ;))
http://www.aquatraders.com/LED-Aquarium-Lighting-Beamswork-Tropical-Fish-p/56325p.htm
Forum: Lighting 01-23-2015, 08:36 PM
Replies: 18
Views: 548
Posted By jeffkrol
LOL and sad.. Took me awhile to see what you were...

LOL and sad.. Took me awhile to see what you were getting at.......
Forum: Lighting 01-23-2015, 06:13 PM
Replies: 18
Views: 548
Posted By jeffkrol
Where did you hear such a silly thing? ...

Where did you hear such a silly thing?
http://www.aquatraders.com/LED-Aquarium-Lighting-EVO-Freshwater-Plant-p/56546p.htm...
Forum: Lighting 01-23-2015, 03:25 PM
Replies: 1
Views: 133
Posted By jeffkrol
3W star emitters are probably "the most common"...

3W star emitters are probably "the most common" type



I gave up questioning manufacturers a long time ago..
Technically due to convenience most are moving to multi-chip or COB designs for...
Forum: DIY 01-23-2015, 02:42 PM
Replies: 4
Views: 252
Posted By jeffkrol
In that case you could start w/ a Vero10 ...

In that case you could start w/ a Vero10
http://www.bridgelux.com/wp-content/uploads/2013/10/DS30-Bridgelux-Vero-10-Datasheet.pdf
BXRC-50G1000-B-04
5000K 90CRI 26.5V 350mA 9.3W
36V power supply...
Forum: DIY 01-23-2015, 02:30 PM
Replies: 248
Views: 26,404
Posted By jeffkrol
Thanks.. 7020=5630's ... ...

Thanks..
7020=5630's ...
http://g01.s.alicdn.com/kf/HTB1RzsbGFXXXXXDXpXXq6xXFXXXP/201788355/HTB1RzsbGFXXXXXDXpXXq6xXFXXXP.jpg
Forum: Lighting 01-23-2015, 10:24 AM
Replies: 11
Views: 345
Posted By jeffkrol
What is your cavity size? L/R front/back? How...

What is your cavity size? L/R front/back?
How high above the water line?
A cheapish retrofit would be this BUT you need a good amount of width. Depth penetration should be fine and w/ enough height...
Forum: DIY 01-23-2015, 10:11 AM
Replies: 248
Views: 26,404
Posted By jeffkrol
hmm what do you mean? Which chips (different...

hmm what do you mean? Which chips (different chips/different power output)? What is the amp output of the power supply (more amps the better, to a point)?
Forum: DIY 01-23-2015, 10:07 AM
Replies: 4
Views: 252
Posted By jeffkrol
The water tastes good... anyways normally I'd...

The water tastes good...
anyways normally I'd suggest a simple one chip build but w/ this particular set up I'd really lean toward a more packaged light..
IF this can be mounted under the shelf it...
Forum: Lighting 01-23-2015, 09:47 AM
Replies: 18
Views: 466
Posted By jeffkrol
the simplist thing is to consider mixed...

the simplist thing is to consider mixed whites..low k and high k whites..
Low k whites are high in red.. high k lights are high in blue.....
Showing results 1 to 25 of 250

 
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