Zoo Med Ultra Sun 6500k Super Daylight Mini Compact Lamp is a 6500K high intensity trichromatic full spectrum daylight lamp. It provides excellent color rendition for optimum viewing of your freshwater or marine fish and live corals with a balanced spectrum of visible light and UVA. Zoo Med Ultra Sun 6500k Super Daylight Mini Compact Lamp is ideal for Nano tanks, marine aquariums, planted tanks, community tanks, and hermit crab tanks. Fits standard medium base. Size: 5” long. 10 watts.