radium or helios bump which is better

[jlaudiofreak]

I am looking to change my lighting over my display and frag tank. right now I am running 4 xm 10ks in lumenbright and 1 400 watt xm 20 in a lumenbright over my frag tank. I was thinking about changing the out for 20k but I cant decide between the radium or the helios. My ballast are coralvue electronic over display and old pfo ballast on frag tank. Any help would be great

 

[snorvich]

It is hard to say what is "best" but I sure like my radiums.

 

[Znut Reefer]

Never used the Helios. I like the Radiums or XM 20K.

 

[SPSpirate]

radiums!!

 

[grigsy]

Radium

 

[jlaudiofreak]

will radiums fire on m59 ballast its an old pfo and the 250 is a new coralvue electronic no dimmable

 

[Paulairduck]

Radiums and Helios are very similar, used both. Helios cost less, Radium's have more par, and I think you get a little more color from Helios.

I still use Radiums because I can run them for more than a year on my Galaxy ballasts

 

[jlaudiofreak]

do you think 4 250watt helios 20k will be enough for a 24" deep tank. I am using lumenbright reflectors and coralvue no dimmable e ballast

 

[killaACES]

I ran both bulbs but in the 250W version, I like the Helios over the Radiums, the Helios were much more of a nice CRISP 20K, and i had somee nice crazy pop in my colors when I switched to Helios. I ran the bulbs on an HQI SLS. I have since switched to T5s, and if I had to ever go back to MH, it will be Helios!

 

[LunarDDS]

I've read that the non-dim coralvue ballasts don't drive the radiums very well. I just radiums with my dimmable coralvues and I like them. We'll see if the corals like them in a few weeks.

 

[mtraylor]

I run the Radiums 250W SE. Never used the Helios, but now I'm going to have to research them.

 

[eppersonm16]

Im currently running the Radiums for over 2 years and still getting good color and growth!!