Anyone running 400W Radiums on their SPS tank?
- Thread starter ReefWorld03
- Start date
REEF-DADDY
New member
Not sure why that does not work.
This is the 12k reeflux with 320watts of VHO actinic. The radiums look the same, only brighter.
If you go to www.ctars.org then members tanks then Steve Dohoney you can find more pics
REEF-DADDY
New member
I was 51% to 49% between the radiums on HQI and XM on M59's. I hate the idea of changing bulbs every six months as well, but who am I kidding I want something new by then anyway.
SunnyX
New member
<a href=showthread.php?s=&postid=7515063#post7515063 target=_blank>Originally posted</a> by REEF-DADDY
I was 51% to 49% between the radiums on HQI and XM on M59's. I hate the idea of changing bulbs every six months as well, but who am I kidding I want something new by then anyway.
:lol: :lol: :lol: :lol: :lol:
Your exactly like me. I dont think I have ever had a bulb in my tank longer then 6 months anyway.
Unarce
Unshackled
I've also been thinking of trying the XM20K's. Just been hesitant, cause I hear they look a bit purple with an HQI ballast.
Here are some shots I just took of all 3 sides. This is a 400W Radium with a PFO/HQI ballast:
I'm sure you can tell by all the shading that I don't have actinics
Here are some shots I just took of all 3 sides. This is a 400W Radium with a PFO/HQI ballast:
I'm sure you can tell by all the shading that I don't have actinics
REEF-DADDY
New member
The ppfd drops to 97 on the XM's with an hqi ballast, funny because its like 137 for them on an M59. Your at about 147 with your current combo. No wonder we can't figure out lighting once and for all.
That being said I can't wait to see the 14k Iwaski's in 250 and 400W! Could be another switch for me. Those bad boys run 97 ppfd with a 175W bulb!
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REEF-DADDY
New member
I ran the 250 12k and 10k both on an Eballast. 10k too pink for me, 12k too slow growth. My 10k bulbs may have been defective however. They were actually replaced under warranty, at which point I went 12k.
OK too much posting too little work. cya
400 watt bulb comparison
Radium 20,000 K = 147 PAR, 471 Power, .3121 Efficiency
Most replace these bulbs after 6 months
XM 20,000K = 128 PAR, 466 Power, .2747 Efficiency
Most replace these bulbs after 12 months
In my opinion XM's hold coral color as well as a Radium and you don't have to change them as often and use a little less power
Radium 20,000 K = 147 PAR, 471 Power, .3121 Efficiency
Most replace these bulbs after 6 months
XM 20,000K = 128 PAR, 466 Power, .2747 Efficiency
Most replace these bulbs after 12 months
In my opinion XM's hold coral color as well as a Radium and you don't have to change them as often and use a little less power
SunnyX
New member
You are correct.
The 137 PAR is actually the PAR of te 10K XM on a 250W m58.
www.Hellolights.com has the the 400W PRO Series M59, with the purchase you get any XM bulb for $25. Plus 10% off your total order for using the code RCONLY.
Looks like a sweet deal to me.
nwrogers
Got gorgs?
I’m running two 400W Radiums on my 125. I have two PFO Pulse Start ballasts. There are no actinics on in this photo. I really like the crisp ice blue color they have. Heat has been a real issue for me so I had to buy a chiller. Bulbs are 9†off the water and the tank is 21†deep…
REEF-DADDY
New member
sorry going by memory from research. Hey I was only off by 9 ppfd right?
Also something to keep in mind for any newbies reading this thread PAR is a different metric that PPFD. The PAR on either of those bulbs is likely around 600-700 without a reflector and maybe 900 with a good one. Not to say they don't speak to the same thing.
ReefWorld03
Premium Member
stuckey_t
What type of lights are you running, you're post does say?
What type of lights are you running, you're post does say?
