Radium 400 Watt 20K SE Lamp

• 20,000K Color Temperature
• Requires 400w Pulse Start (ANSI M135) or Electronic Ballast
• Mogul Base Single Ended Lamp
• Made in Germany

Radium 20K Lamp
High quality reef aquarium lamp from Radium provides a nice crisp blue color simulating deeper water light. Ideal for situations where supplemental actinic blue lighting is not available or desired. Also commonly used along with lower K rated metal halide lamps like 10K for excellent coloring of your corals in your reef aquarium. Requires probe start or electronic ballast for correct operation.