Radium 20k's


Anyone still running SE Radium 20k's? I would like to compare the SE spread and color to my current Phoenix DE 14k and was hoping someone has bulbs.


I'm located in Natomas, CA if anything. Old bulb ideally or i can bring a fixture (but that involves quite a bit more of things).


Cnidaria lover
Team RC
At TSA's coral farm we still run 400w radiums for a few hours a day on our grow out systems.

Its important to note, if you are using 250w Radiums you really should be running them on pulse start magnetic HQI ballasts, E ballasts will fire and run them, but you wont get that "Radium Magic" that everyone loves.

I might have a few old 250w radium bulbs from my old system I might be able to send if interested.