Arcadia Marine Metal Halide Bulb 250W 14,000K Double EndedMetal Halide lamps provide extremely high light levels from a compactsource. Thedesign of the lamp means that the light is emitted from a single point, which creates a rippling effect through the water that is impossible to achieve with fluorescent lamps.- 14,000 K colour temperature replicates shallow ocean light conditions- High intensity light source supports coral growth- Use alone or combine with 20,000K Marine Blue