Ceramic metal halide lamp having a high color temperature

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In various embodiments, a high-pressure discharge lamp is provided. The high-pressure discharge lamp may include a ceramic discharge vessel which encloses a discharge volume, wherein a filling containing sodium halides, rare earth halides, mercury and inert gas is accommodated in the discharge volume, wherein the filling at the same time includes the rare earths Tm and Gd, the relative proportions between Gd and Tm, considered as a molar ratio, lying in the range 0.1 to 1.