T5 Fluorescent Lamp, 39 Watt, 36", Actinic 03 (420 nm). Simulates the blue hue of deeper water, Assists in growth of Coralline Algae, Perfect for supplementing daylight lamps in saltwater tanks. Operates in T5 fixtures, Mini BiPin (G13 base), lumen output 1850, average hours 20000.
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