Catalina 96 Watt 420nm True Actinic Power Compact Straight Pin Aquarium Light 96 Watt True Actinic 420nm Aquarium Light Bulb Excellent for saltwater marine tanks in combination with 10k White 34 inches long - Straight Pin Power Compact Peaks at 17000k Good for corals and anemones, crabs, shrimp, fan worms, scallops, sea stars, clams and other invertebrates