Lighting Website Updates

[Herbert T. Kornfeld]

Aquaconnect 14,000Ks are high in output and 14,000K...

 

[The Grim Reefer]

Who said anything about XM 15,000Ks? Well, I think that the link provided will tell him what he wants to know.

He was talking about getting more blue and mentioned sticking with XM's, wasnt sure if he was thinking about going from 10's to 15's. Would hate to see someone end up with those 15K's until they get them worked out better. Has to be a way to get the PAR up on those lamps.

Those aquaconnect lamps seem to be best for color and power.

 

[Herbert T. Kornfeld]

They are pretty expensive. Too bad he doesnt have HQI & DE...I love those pheonix bulbs...

 

[causeofhim]

I love the color of Aquaconnect 14,000Ks.

 

[Herbert T. Kornfeld]

Yeah, I hear they are the same bulb as the pheonix...er...one makes them for the other. At least according to the spectral graphs, they are identical. Its just that the pheonix is about half the price.

 

[The Grim Reefer]

I read somewhere tha Aquaconnect is a little more blue than the Phoenix. Dunno. I will probably try Phoenix when the EVC 14's are done just for the better PAR output.

 

[Sanjay]

I am sure your eyes cant tell the difference. If they can send me your eyes to use as a spectroradiometer


sanjay.

 

[The Grim Reefer]

I am sure your eyes cant tell the difference. If they can send me your eyes to use as a spectroradiometer


sanjay.

Is that between the EVC and Phoenix or Aquaconnect and Phoenix. The eyes are pretty good for color. I just wish they would quit making the print on everything smaller as I get older

 

[Sanjay]

Aquaconnect and Phoenix

sanjay.

 

[Mogrash]

Herbert,

I also had problems removing the DE bulbs from the clips. I found that by simply placing a toothpick into each clip (should be enough space between the ends of the bulb and the holder) this opens the clip up enough that the bulb then easily comes out...almost falls out.

Hope that helps.

 

[Herbert T. Kornfeld]

Thanks...Ill try that next time. Gosh, just browzing the spectral plots a moment ago...paying close attention not only to PPFD but the graphs as well. Those aquaconnects line up with the pheonix bulbs almost 100%...but compare the Radium 250wattSE with the pheonix 250wattDE...wow. Same PAR, and near identical graphs...the radium just has a little more in the near ultraviolet range. Wow. And just that little bit seems to make it look so much bluer. Hmmm. Comparing the pheonix to the XM 20,000Ks even reveals the same similarity, and if nothing else....really makes the XM bulbs look useless...esp the 15,000Ks.

Sanjay, are you going to get some megachrome 14,500Ks for testing ever?

 

[Reefvet]

You really do have to wonder what the point of the XM 15ks was supposed to be. They don't seem to be good at anything.

The XM 250W DE 20K over a small tank is a great light, no need for actinics and great coral growth. I run one on my 30 cube and love it.

 

[Sanjay]

Sanjay, are you going to get some megachrome 14,500Ks for testing ever? [/B]

If someone can send me the lamps I will test them. I have been made promises from Phil at Giesmann in canada, but I have yet to see the lamps.

sanjay.

 

[xabo]

If someone can send me the lamps I will test them. I have been made promises from Phil at Giesmann in canada, but I have yet to see the lamps.

sanjay.

I have a MegaChrome 14.5 DE I'm not using. If you like you can test it.

 

[Deuce67]

Hi Sanjay! Got a question. It seems there is a big difference in PPFD between the shielded and non shielded test. Im not sure what you used for a shield but, do you think PPFD would go up if you use some type of a low iron glass or clearer glass thats still capable of blocking UV? Im running 150 de on an hqi ballast using 10k xde. Shielded is 61 and non shielded is 77. Pretty big diff. Thanks!

 

[Sanjay]

Well, with a DE lamp you are going to have to run it with the glass shield on the fixture. Its possible that a low iron glass may increase the light output. I have not tested this... something I should do one of these days. In general I have seen a loss of about 15-20% due to the glass shield used (depends on the lamp's spectral output). I basically place the glass shield over the sensor when I test the lamps as "shielded".

Anyone know where I can find a smallish peice of thin low iron glass ?

sanjay.

 

[reefcrazed]

Has XM done anything to increase the par ON THEIR 15k'S YET?

 

[Travis]

But would a low iron glass shield still block the harmful uv rays from the DE bulb? I guess you could check the spectrum when you get a piece to test Sanjay.

 

[Deuce67]

Ahhh! Somebody please send Sanjay a piece of low iron glass!

 

[dukecola]

Fortunately corals don't understand PAR.

I've grown beautiful corals for years, several decades actually, with bulbs that would be tossed aside given today's mathematical criteria.

You are so right!

I grew awesome corals with three 175W 5500k Hamiltons. I'd be laughed at today for using them. Heck, we were thrilled when the 6500k bulb came out! When will the insanity end.