250 Watt 14000K Metal Halide Bulb Ushio, Double Ended

250W 14000K METAL HALIDE DOUBLE ENDED BULBUSHIOUshio double-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. An electronic ballast, magnetic pulse-start ballast or magnetic HQI ballast is required to ignite this bulb. It must also be housed inside a pendant. It cannot be used with simply a reflector in an open application as UV rays emitted by the bulb must first be filtered with a UV-proof lens. An excellent choice for reef tanks 22"30" deep.Please click here for more information on how the different Kelvin ratings appear and more information on metal halide bulbs.Common questions/problems concerning metal halide lamps: Metal halide lamps of the same kind are different colors?Metal halide lamps operate by passing an electric arc through an arc tube that excites...