Lighting Website Updates

[mwood]

Sanjay, have you thought about adding a max Spectal Irradainance at a wavelength to your tables on the website? Kind of like a KS statistic is given. It would be most usefull on 20k bulbs around the 450 nm range. A person could view ppfd and the 450 nm spike from the tables in choosing thier next bulb.

An example might be EVC 400w 14k on a blueline looks to be about 1.9 watts/nm/m^2 at 452 nm.

 

[Sanjay]

There is a lot more that can be done with the website and graphs, but right now I do not have the time nor the skills to make it all it can be.

Sanjay

 

[Sanjay]

I just updated the site with the lastest results of the 175W lamps that have appeared in my last 2 articles. 80 more spectral data have been added.

sanjay.

 

[Siffy]

Sanjay, what are you wanting the site to be able to do/show?

 

[mwood]

<a href=showthread.php?s=&postid=6223502#post6223502 target=_blank>Originally posted</a> by Sanjay
Yes, I have tested the lumenmax.. just need to find time to write up the results. Basically you wont go wrong with either one.

sanjay.

Hey Sanjay, I really appreciate the work you do. Iââ"šÂ¬Ã¢"žÂ¢m thinking about placing a single 400w halide over a 4ââ"šÂ¬Ã¢"žÂ¢*4ââ"šÂ¬Ã¢"žÂ¢ area with a LAIII or a lumenmax. Can you respond if one reflector creates a broader spread than another?

Marcus

 

[Markk96]

<a href=showthread.php?s=&postid=6513301#post6513301 target=_blank>Originally posted</a> by mwood
Hey Sanjay, I really appreciate the work you do. Iââ"šÂ¬Ã¢"žÂ¢m thinking about placing a single 400w halide over a 4ââ"šÂ¬Ã¢"žÂ¢*4ââ"šÂ¬Ã¢"žÂ¢ area with a LAIII or a lumenmax. Can you respond if one reflector creates a broader spread than another?

Marcus

Same here I would like to see how the two look in numbers.

 

[Sanjay]

<a href=showthread.php?s=&postid=6516112#post6516112 target=_blank>Originally posted</a> by Markk96
Same here I would like to see how the two look in numbers.

I sent off the article with the data on Lumenmax reflectors to Advanced Aquarist. So it should appear on feb 15th.

The short version is, is that the lumenmax puts out the same amount of light as the Lumenarc, but the peak values are slightly lower than the lumenarc. So basically, you cant go wrong with either one. The lumenmax is slightly bigger in dimensions.

sanjay.

 

[Sanjay]

<a href=showthread.php?s=&postid=6509884#post6509884 target=_blank>Originally posted</a> by Siffy
Sanjay, what are you wanting the site to be able to do/show?

Lets make a list of features that people would like to see added to the site.

sanjay.

 

[timr]

Sanjay, this might already be somewhere on the site or here but can you post a Reader Digest version of what each of the parameters listed mean and what you should ideally look for in a bulb. I've looked at the site many times but when it comes to the different spikes, PPFD, efficiency, etc it gets confusing to us lighting technology rookies.

Thanks,

Tim

 

[Markk96]

<a href=showthread.php?s=&postid=6527693#post6527693 target=_blank>Originally posted</a> by Sanjay
I sent off the article with the data on Lumenmax reflectors to Advanced Aquarist. So it should appear on feb 15th.

The short version is, is that the lumenmax puts out the same amount of light as the Lumenarc, but the peak values are slightly lower than the lumenarc. So basically, you cant go wrong with either one. The lumenmax is slightly bigger in dimensions.

sanjay.

Thanks Sanjay

I know that SLS is coming out with a Mini version sometime at the end of this month or in Feb. Those are the ones I will be wanting to run on my tank.

Mark

 

[Sanjay]

<a href=showthread.php?s=&postid=6527810#post6527810 target=_blank>Originally posted</a> by timr
Sanjay, this might already be somewhere on the site or here but can you post a Reader Digest version of what each of the parameters listed mean and what you should ideally look for in a bulb. I've looked at the site many times but when it comes to the different spikes, PPFD, efficiency, etc it gets confusing to us lighting technology rookies.

Thanks,

Tim

I am working on a series of columns for reefkeeping.com where I will explain the light concepts starting from basics and buiding up. These columns will be in small easily understandable peices designed to increase the lighting IQ of reef aquarists.


sanjay.

 

[mwood]

<a href=showthread.php?s=&postid=6527696#post6527696 target=_blank>Originally posted</a> by Sanjay
Lets make a list of features that people would like to see added to the site.

sanjay.

I saw in an artical once where you segmented the light color spectrum into color ranges and gave some summary statistics by each range. Kind of like quartiles. This would be nice. Sometimes I am guilty of looking for the highest spike around 450 and 420, but the area below the curve may be a more appropriate number.

PS, I noticed you didn't test 400w xm 10k's on electronic ballasts. Was there a reason for this or have you just not had time? I ask as I've heard the stories about xm 10k bulbs.

 

[Codeman00]

<a href=showthread.php?s=&postid=6528054#post6528054 target=_blank>Originally posted</a> by Sanjay
I am working on a series of columns for reefkeeping.com where I will explain the light concepts starting from basics and buiding up. These columns will be in small easily understandable peices designed to increase the lighting IQ of reef aquarists.


sanjay.

I can't wait to read those articles. Thanks, Sanjay.

 

[MattD004]

If your looking for a good coloration with decent growth for sps, which would you go with? the XM10k or the coralvue reflux 10k?

Heard a lot of people changing from xm to reeflux. Wondering if the reeflux justify the mass exodus?

 

[want2reef]

Sanjay,

Have you heard if Iwasaki is going to come out with a 250W 14K bulb?

Thanks

 

[Codeman00]

They are coming out with a 175W 14K bulb too (Aqua2) and it has high par... scroll back to page 13 and read about it.

 

[Ovaltine]

I know that JEBO had a horrible reputation for lighting and even tanks. They have since come out with what is suppose to be an improved version with the Odyssea Power Compact units with Lunar lights. Can anyone tell me if they have bought this new version, how it's worked out, and or if anyone has pertinent info they could share on these lights?

 

[Sanjay]

<a href=showthread.php?s=&postid=6540878#post6540878 target=_blank>Originally posted</a> by want2reef
Sanjay,

Have you heard if Iwasaki is going to come out with a 250W 14K bulb?

Thanks

I do not know. I don't talk to Iwasaki directly.

sanjay.

 

[mwood]

Sanjay, could you test uri vho actinics and t5 blue bulbs and post those on the website to be able to compare that light to 20k halides?

 

[nreefer]

I have read all 15 pages and excuse me if I missed this but I used to run 250W SE Ushio's 10,000K with a M57 ballast and switched to 250 HQI DE Ushio 10,000K with a M80 ballast. Is it true that my PPFD went from 116 for the SE bulbs down to 84 with my DE bulbs? So I actually lost PAR by going to a DE system?
Or is my thinking wrong?
Do SE bulbs outperform DE bulbs?