Whats the difference between radium and non radium bulbs?

chrisqueenz · 04/06/2009, 02:12 PM

Might be a dumb question but kind of curious.........

Thanks

46FiatYamaha · 04/06/2009, 05:13 PM

radium is simply the brand name of a bulb (or lamp technically), they have a very popular 400 watt SE 20K lamp

mm949 · 04/08/2009, 06:29 PM

about $20

grigsy · 04/08/2009, 07:46 PM

Radium bulbs are good bulbs. Nice color and stable spectrum. They may cost more but they are good bulbs and worth it IMO.

The other difference is the ballast - you won't be able to run the Radium of a standard probe start ballast. You need to use them with an electronic ballast or an HQI ballast.

04/06/2009, 02:12 PM	#1
chrisqueenz Registered Member Join Date: Jun 2006 Location: Rochester New York, USA Posts: 2,042	Whats the difference between radium and non radium bulbs? Might be a dumb question but kind of curious......... Thanks

04/08/2009, 06:29 PM	#3
mm949 Registered Member Join Date: Aug 2004 Location: chicago Posts: 1,843	about $20 __________________ 219"x30"x48" - 1350gl reef Current Tank Info: ...18ft of double sided goodness

04/06/2009, 05:13 PM	#2
46FiatYamaha Registered Member Join Date: Jan 2008 Location: Matthews NC Posts: 990	radium is simply the brand name of a bulb (or lamp technically), they have a very popular 400 watt SE 20K lamp

04/08/2009, 07:46 PM	#4
grigsy Registered Member Join Date: Sep 2003 Location: Santa Cruz, CA Posts: 2,307	Radium bulbs are good bulbs. Nice color and stable spectrum. They may cost more but they are good bulbs and worth it IMO. The other difference is the ballast - you won't be able to run the Radium of a standard probe start ballast. You need to use them with an electronic ballast or an HQI ballast.