looking for PAR rating chart of different 150w HQI DE bulbs
- Thread starter ubgone
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Rhodesholar
New member
Ubgone,
From Dr. Sanjay thread:
PPFD - Photosynthetic Photon Flux Density
It is basically the count of number of photons falling on a given area (usually 1 meter square) in one second. It is measured in the units of micromoles/m^2/sec. 1 micromole = 10^17 photons.
PAR - photsynthetically available radiation is technically measured as PPFD, hence used interchangeable with PPFD.
Are you looking for bulbs? I just put in some serious research and I found the Icecaps and ABs to be two of the best 150 watt bulbs in the 10k range for PPFD and CCT.
You can pick up Icecap 10ks for $54 a piece here:
http://www.innovativelights.com/ic-150-de-10k.html
Let me know what you find/think. I posted 4 different threads and never got an answer from anyone. What I provided you is the conclusion I came to after 3 straight days of solid research after I realized no one was going to help out.
Here is one of the articles:
http://www.advancedaquarist.com/issues/nov2002/feature2.htm
I realize it's from 2002 but the laws of physics don't change. I looked at recent data from the link you were provided and the data still holds up.
From Dr. Sanjay thread:
PPFD - Photosynthetic Photon Flux Density
It is basically the count of number of photons falling on a given area (usually 1 meter square) in one second. It is measured in the units of micromoles/m^2/sec. 1 micromole = 10^17 photons.
PAR - photsynthetically available radiation is technically measured as PPFD, hence used interchangeable with PPFD.
Are you looking for bulbs? I just put in some serious research and I found the Icecaps and ABs to be two of the best 150 watt bulbs in the 10k range for PPFD and CCT.
You can pick up Icecap 10ks for $54 a piece here:
http://www.innovativelights.com/ic-150-de-10k.html
Let me know what you find/think. I posted 4 different threads and never got an answer from anyone. What I provided you is the conclusion I came to after 3 straight days of solid research after I realized no one was going to help out.
Here is one of the articles:
http://www.advancedaquarist.com/issues/nov2002/feature2.htm
I realize it's from 2002 but the laws of physics don't change. I looked at recent data from the link you were provided and the data still holds up.
Last edited:
<a href=showthread.php?s=&postid=9663206#post9663206 target=_blank>Originally posted</a> by Rhodesholar
Ubgone,
From Dr. Sanjay thread:
PPFD - Photosynthetic Photon Flux Density
It is basically the count of number of photons falling on a given area (usually 1 meter square) in one second. It is measured in the units of micromoles/m^2/sec. 1 micromole = 10^17 photons.
PAR - photsynthetically available radiation is technically measured as PPFD, hence used interchangeable with PPFD.
Are you looking for bulbs? I just put in some serious research and I found the Icecaps and ABs to be two of the best 150 watt bulbs in the 10k range for PPFD and CCT.
You can pick up Icecap 10ks for $54 a piece here:
http://www.innovativelights.com/ic-150-de-10k.html
Let me know what you find/think. I posted 4 different threads and never got an answer from anyone. What I provided you is the conclusion I came to after 3 straight days of solid research after I realized no one was going to help out.
Here is one of the articles:
http://www.advancedaquarist.com/issues/nov2002/feature2.htm
I realize it's from 2002 but the laws of physics don't change. I looked at recent data from the link you were provided and the data still holds up.
Thanks for the explanation! :beer:
I have a couple of things to share with you, I found this site that has different PAR charts. the problem is that the 3 bulbs in question (Hamilton 14k, phoenix 14K and corlife 10K) are no where to be found in those PAR charts...
I would love to know this bulbs info (lumen and par...)
anyhow this is the par article:
par article
and this is the bulbs I found (great price on them BTW!)
Coralife 150 watt 10K HQI Metal Halide Lamp
14K 150watt HQI Double End Halide Bulb - Phoenix
If you find anything that could help, please let me know!
uri.
Rhodesholar
New member
I was told that those bulbs Hamilton, Coralife, and I believe Phoenix are Chinese made and the quality is questionable. At the very best the specs on the bulbs will change from lot to lot.
From what I understand, Germany makes the best bulbs, followed by Japan, and then China.
From what I understand, Germany makes the best bulbs, followed by Japan, and then China.
Rhodesholar
New member
The article on PAR you provided is for 250 watt bulbs. Everything there changes. I didn't do any research on 250 watt bulbs and thus can not comment.
One other thing I noticed in my research. The higher K bulbs actually offer no benefit to SPS corals. The best K is 6500-10k. You will also notice the higher K bulbs have much lower PAR values. At least from the data I looked at.
One other thing I noticed in my research. The higher K bulbs actually offer no benefit to SPS corals. The best K is 6500-10k. You will also notice the higher K bulbs have much lower PAR values. At least from the data I looked at.
First off your right:
6.5k-10k bulbs have a better PAR rating
But still its more a question of what you need the bulbs for... Also another Q is how much of a difference of par is there between the 10K hamilton vs the 14k phoenix... if its a small diffrence then i would go with the 14k without a doubt!
So my main focuse is to try and find out the bulbs lumen and par ratings.
About the whole china thing, I agree quality products are made in europe and in the US BUT today eve EHEIM is building some or part of its products in china, you are crazy to think otherwise.... the Q isn't if its made partially in china or not but a question of whether it was made in a EHEIM factory in china or in a OEMd factory in china, which means there is a factory there that produces bulba and there is only chinese tech in it so companies buy the bulbs from them, stick the logo of there company and thats it.
So as you can see its not a quesion if its made in china or not, all bulbs are either made or parts of it is made in china, the Q is by who in china.....
GL
Rhodesholar
New member
The German bulbs for sure and I am pretty sure Japenese bulbs are made exclusively in those countries. Phoenix I believe are Korea.
AS far as PAR/PPFD a change as much 10 PPFD is a huge difference.
Remember also PPFD will change dramtically from ballast to ballast as well and certain bulbs will do better with different ballasts.
Yes I agree, depending on what your keeping is how you should make your bulb selection. I keep acros so I am looking for high PPFD and lower K temps.
AS far as PAR/PPFD a change as much 10 PPFD is a huge difference.
Remember also PPFD will change dramtically from ballast to ballast as well and certain bulbs will do better with different ballasts.
Yes I agree, depending on what your keeping is how you should make your bulb selection. I keep acros so I am looking for high PPFD and lower K temps.
michaeldaly
New member
Does any body know what the par rating on a 150W 14000K BLV nepturion bub is?
sherm71tank
Premium Member
The 14K Phoenix bulbs I have (250watt) are made in Japan.
Rhodesholar
New member
What ballast?
Rhodesholar
New member
I will have to check my info (on work computer) but I think it was Korea or China. I may be wrong. I have read so much stuff the last few days hard for me to remember. I will check on Monday and post.
There is so little information to go on with bulbs. Really is a shame. Thank goodnes for Dr. Joshi.
I have been e-mailing the bulb vendors I have been looking at and telling them they should be posting the bulb specs/data on their web sites. Ushio is the only one I found that actually puts the bulb data out there for review. Most of the time the name on the bulb is not the company making it. That is why I have been an advocate of German made bulbs. The Germans over engineer everything, so I figured it's a safe bet with their bulbs. Not that others can't or don't make a fine bulb. Just my personal preference.
There are also so many variables to take into account. A bulb may have great PPFD for 3 months and then drop dramatically. A bulb may have great PPFD and CCT and then drop after several months. What ballast the light is on makes a HUGE difference. I can see why this topic is so mesmerizing.
sherm71tank
Premium Member
Fine and well. I just walked over to my supply cabinet and grabbed one to look at.
Rhodesholar, I found somthing:
Venture 6500K 150W HQI
I e-mail them for the bulb PAR rating...
this bulb is made in the USA (thats what they are claiming anyway..)
I found it at 35$.
What do you think?
Venture 6500K 150W HQI
I e-mail them for the bulb PAR rating...
this bulb is made in the USA (thats what they are claiming anyway..)
I found it at 35$.
What do you think?
Rhodesholar
New member
I didn't see PPFD or CCT data unless I missed it.
The rest of the data I am not well versed enough to draw a conclusion from.
The rest of the data I am not well versed enough to draw a conclusion from.
Rhodesholar
New member
My bad. Sorry about that. Found it. Yes you are 100% correct they are made in Japan.
http://www.peclamp.com/companyprofile.html
I will have to check if it was an oversite on my part or if the source I got it from was not accurate.
Thanks.
michaeldaly
New member
Vossloh Schwabe HQI ballast.
I ran the 10000K Ventures on my tank for a year, they have a very nice white colour, and are cheaper than most bulbs, yes they are made in the USA.
Apparently there par rating is not amazing but for the price they are pretty good, I have now switched to BLV's which offer improved growth.
