Hamilton 400w SE 20k Bulb

The Hamilton single-ended 20000K 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.