Radium 400 Watt 20,000K bulb

RADIUM Metal Halide 400W 20000K Bulb

• German made 400 watt lamp by Radium
• Deep blue appearance
• Brings out fluorescence in fish and corals
• Provides the aquarium with an attractive, actinic look
• Must be used with a 400 watt M135 ballast or 400 watt electronic ballast - cannot be used with a probe start M59 ballast.  Please check your ballast type before ordering.
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