The Hamilton single-ended 14000K metal halide bulb offers excellent coloration and good intensity. It is crisp-white with a blue tint. It brings out the fluorescent pigments in corals nicely. Fluorescent supplementation is usually not necessary, but can be used for added intensity and to simulate dawn and dusk. This bulb will work with a standard magnetic ballast, magnetic pulse-start ballast or electronic ballast.  An excellent choice for  reef tanks 22"–30" deep.
on how the different Kelvin ratings appear and more information on metal halide bulbs.