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True Lumen 420nm T5HO Actinic purple bulbs by Current USA are suggested to replace the recently discontinued SlimPaq Actinic Fluorescent Lamps. True Lumen Actinic bulbs will work in all T5 light fixtures, just ensure you use a bulb with the same wattage as was originally in your light fixture.
Peaking at 420nm, actinic purple T5 lamps provide the proper light spectrum for high growth and increasing the fluorescence in marine corals. An excellent lamp for promoting strong growth and maximizing the colors found in both SPS & LPS corals.