New to Radium bulbs have ?

TRENT_G · 06/16/2011, 06:02 PM

Just bought a Galaxy (select-a-watt), Lumen Max Elite and a HRI-T Radium 250 bulb. What do I run the Ballast on 250 or HQI?

Also their was no glass with the fixture? Do I need to get one?

I have it hung about 18" over a 40b then was going to lower it a bit over the next few weeks. Does this sound right?

Plan on running this for 6 hours a day with no supplement?

Thanks

RokleM · 06/17/2011, 08:04 AM

SE bulbs have the glass built it, so a second piece of glass isn't required (unless you need it for splash guard reasons).

250w will work and be slightly bluer with less PAR. HQI would be to spec.

The issue with that setup is the fact the elite is a pretty focused light (not spread), so you might have issues covering a full 3' 40b without it mounted pretty high. That being said, that bulb/ballast combo is pretty powerful PAR wise, so hanging it high really shouldn't be that big of an issue.

TRENT_G · 06/17/2011, 06:59 PM

Quote:

Originally Posted by RokleM

SE bulbs have the glass built it, so a second piece of glass isn't required (unless you need it for splash guard reasons).

250w will work and be slightly bluer with less PAR. HQI would be to spec.

The issue with that setup is the fact the elite is a pretty focused light (not spread), so you might have issues covering a full 3' 40b without it mounted pretty high. That being said, that bulb/ballast combo is pretty powerful PAR wise, so hanging it high really shouldn't be that big of an issue.

Sweet, Thanks for the reply.

06/16/2011, 06:02 PM	#1
TRENT_G Registered Member Join Date: Jun 2010 Location: Oregon Posts: 501	New to Radium bulbs have ? Just bought a Galaxy (select-a-watt), Lumen Max Elite and a HRI-T Radium 250 bulb. What do I run the Ballast on 250 or HQI? Also their was no glass with the fixture? Do I need to get one? I have it hung about 18" over a 40b then was going to lower it a bit over the next few weeks. Does this sound right? Plan on running this for 6 hours a day with no supplement? Thanks __________________ 120 (4X2X2), 2x250 Phoenix 14k MH with 2X ATI Purple Plus T5 HO, 2x Vortech MP40 ES, 400 gallon sump system. Current Tank Info: 120 gallon SPS Tank w/ 400 gallon sump......

06/17/2011, 08:04 AM	#2
RokleM Registered Member Join Date: Apr 2005 Location: Greenville, SC Posts: 9,687	SE bulbs have the glass built it, so a second piece of glass isn't required (unless you need it for splash guard reasons). 250w will work and be slightly bluer with less PAR. HQI would be to spec. The issue with that setup is the fact the elite is a pretty focused light (not spread), so you might have issues covering a full 3' 40b without it mounted pretty high. That being said, that bulb/ballast combo is pretty powerful PAR wise, so hanging it high really shouldn't be that big of an issue. __________________ -Eric-

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