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Lighting Website Updates
- Thread starter JohnL
- Start date
Sorry if this has been asked and answered, I did scroll through several pages. I just bought a Ushio 20k 250E DE bulb. I'm trying to get PPFD values for it from Sanjay's site. Is it the same bulb as the Giesemann 250W Blue (58 w/M80) or the other Giesemann 250W 20k (43) which seems to be the same as the HIT (BLV)20K bulb? Or is it something different?
I have a shallow tank (18" plus 4" of sand) and have been running a phoenix 14K. My corals have been bleaching a little; I want to try a lower intensity bulb or a while to see what happens. I just fired up the ushio and it definitely appears less bright, and a little "bluer" and less "purple." I know thing will change as it gets burned in. My main queston is, do I now have a bulb which tests at 58PPFD or 43? My ballast is the PFO HQI.
Thanks!!
Matt
I have a shallow tank (18" plus 4" of sand) and have been running a phoenix 14K. My corals have been bleaching a little; I want to try a lower intensity bulb or a while to see what happens. I just fired up the ushio and it definitely appears less bright, and a little "bluer" and less "purple." I know thing will change as it gets burned in. My main queston is, do I now have a bulb which tests at 58PPFD or 43? My ballast is the PFO HQI.
Thanks!!
Matt
hahnmeister
In Memoriam
Another issue... Product life cycle. LED's are developing faster than computer CPU's in the 90's. Buy a pentium 2 today, and wish you had waited out for the pentium 3 a few months later. Already, the Solaris is on the 3rd version. LED's that are 3x the output of the I4 are just around th corner...
Ill buy in when 2 things happen:
The lumen efficiency of the LED itself (no optical focusing tricks) hits 150 lumens/watt... so I can light 500g with only 200 watts of light. Yeah, Im serious, just wait and see.
And the other is a wider range of available spectrums... I cant stand the 'washed out' 20,000K look. I like my blue, dont get me wrong, but I like my daylight too. I dont want my pink birdsnest and red milli to wash out under the lack of a full spectrum.
Ill buy in when 2 things happen:
The lumen efficiency of the LED itself (no optical focusing tricks) hits 150 lumens/watt... so I can light 500g with only 200 watts of light. Yeah, Im serious, just wait and see.
And the other is a wider range of available spectrums... I cant stand the 'washed out' 20,000K look. I like my blue, dont get me wrong, but I like my daylight too. I dont want my pink birdsnest and red milli to wash out under the lack of a full spectrum.
jelwyoming
JELWYOMING
I just bought a set of blueline 14k 400w bulbs thinking that they are the BLV's. Do you know who makes these and what the PAR ratings are. I wanted the blue look changing from EVC 10Ks; the PAR was listed as nearly the same with the BLV's. Now I may be in for a big loss with the bluelines. Any information on them would be a help.
Sanjay, any testing on the Blueline 400's to come?
Sanjay, any testing on the Blueline 400's to come?
I had the 175 W Blueline 14K lamp with a Mag 57 balllast I LOVED the look of this lamp
http://www.bluelineaquatics.com/products/mh_lamp/index.html
I just switched to the XM 20K and the tank is by far whiter and brighter
I may switch back
I keep softies so I think the blueline may be fine for me althow the par is major difrence from the Blueline to the XM
The test was on the 250W blueline and it was in the dumps BUT Looks great
http://www.bluelineaquatics.com/products/mh_lamp/index.html
I just switched to the XM 20K and the tank is by far whiter and brighter
I may switch back
I keep softies so I think the blueline may be fine for me althow the par is major difrence from the Blueline to the XM
The test was on the 250W blueline and it was in the dumps BUT Looks great
jelwyoming
JELWYOMING
Thanks Antman.
I hope that the 400's have better PAR.
I wonder who really makes the Blueline equipment?
I hope that the 400's have better PAR.
I wonder who really makes the Blueline equipment?
jelwyoming
JELWYOMING
I am using the EVC e-ballast.
TropTrea
New member
Well right now we have several draw backs on the LED's.
First off as the Meister mentioned the balancing of the spectrum. By there vary nature LED's produce a very narrow spectrum of light. Therefore the requrement of different LED's to cover the full spectrum. Fortunatly some newer LED's are comming out that do have a broader spectrum of light than earlier versions.
Second is price. They are not a proven item with a very high demand level. When you purchase one now probably .75 on the dollar is going into the R and D that got them to this point and only .25 for actual product. This compares to probably .05 on an established system.
Third. The science of LED's is changing extremly fast. Most people realize that what they buy today will be outdated and cheaper a year from now. As it has been noted it is like the peak time of computer progress. I remember when a 486 computer costed $5,000 and a year later you get a Pentium for $3.000. While I don't think LED technology has hit that point yet I see it the transition point between the 386 and 486 today. So if we can wait long enough when with the Pentium III come out in LED technology?
If you follow the R and D end of the LED developments you will easily see that what is just being released today is well beyound what was the top of the line 3 months ago. Now it will probably take 6 months to 2 years to get the present state of the art into an aquarium hood especially considering we are a very small segment of the market for LED's.
Lighting a 500 gallon with 200 watts? Well getting enough LUM's to get that job done is no big deal even today, But to get a nice visual color balance plus a high enough PAR in the frequencies that keep corals happy is probably a few years off. But if we look far enough ahead we might be aiming at 50 watts to get the job done. Then you will sorry you bought the 200 Watt set up.
Dennis
'
First off as the Meister mentioned the balancing of the spectrum. By there vary nature LED's produce a very narrow spectrum of light. Therefore the requrement of different LED's to cover the full spectrum. Fortunatly some newer LED's are comming out that do have a broader spectrum of light than earlier versions.
Second is price. They are not a proven item with a very high demand level. When you purchase one now probably .75 on the dollar is going into the R and D that got them to this point and only .25 for actual product. This compares to probably .05 on an established system.
Third. The science of LED's is changing extremly fast. Most people realize that what they buy today will be outdated and cheaper a year from now. As it has been noted it is like the peak time of computer progress. I remember when a 486 computer costed $5,000 and a year later you get a Pentium for $3.000. While I don't think LED technology has hit that point yet I see it the transition point between the 386 and 486 today. So if we can wait long enough when with the Pentium III come out in LED technology?
If you follow the R and D end of the LED developments you will easily see that what is just being released today is well beyound what was the top of the line 3 months ago. Now it will probably take 6 months to 2 years to get the present state of the art into an aquarium hood especially considering we are a very small segment of the market for LED's.
Lighting a 500 gallon with 200 watts? Well getting enough LUM's to get that job done is no big deal even today, But to get a nice visual color balance plus a high enough PAR in the frequencies that keep corals happy is probably a few years off. But if we look far enough ahead we might be aiming at 50 watts to get the job done. Then you will sorry you bought the 200 Watt set up.
Dennis
'
scubadoo2
Premium Member
Lighitng Website Updates
Lighitng Website Updates
Sanjay,
Just started back in the hobby again. Glad to see you are still heavily involved.
I have a question for you. I am starting an acropora tank, and I would like to try the 12000K CoralVue 400watt bulbs, will my old M59 ballasts give me reasonable performance, or should I change to new ballasts, and if yes, what type?
Thanks for you help.
Doug K
(formally reefman@voicenet.com,
formally Pittsburgh, now Port Deposit, MD.
ps...how's the Penn State tank doing?
Lighitng Website Updates
Sanjay,
Just started back in the hobby again. Glad to see you are still heavily involved.
I have a question for you. I am starting an acropora tank, and I would like to try the 12000K CoralVue 400watt bulbs, will my old M59 ballasts give me reasonable performance, or should I change to new ballasts, and if yes, what type?
Thanks for you help.
Doug K
(formally reefman@voicenet.com,
formally Pittsburgh, now Port Deposit, MD.
ps...how's the Penn State tank doing?
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