CBConcept&reg; Double Ended R7S 150Watt 14000K HQI Metal Halide Reef Coral Aquarium Bulb 150w 14000k HQI Metal Halide Bulb Reef Aquarium R7S Double ended Metal Halide light bulb Long useful life: 5000 hrs avg color temperature: 14000 Kelvin ANSI code: M81