A partially coated vehicle lamp capsule, comprising a capsule envelope having an upper region, a lower capsule base, and defining a longitudinal optical axis; a filament mounted within the capsule envelope for emitting light when energized by electrical energy, said filament mechanically supported by and electrically coupled to filament supports (30, 32) located within said capsule and electrically connected to leads (34, 36) extending from said capsule base; the filament having a filament axial extent along said capsule optical axis, the filament defining a filament distal portion proximate the capsule upper region and a filament proximal portion located proximate the capsule base; the capsule envelope being coated with a light-transmissive coating in a region extending between the capsule base and a location, as seen along the optical axis, axially above the filament distal portion, with the exception of two uncoated windows disposed along the capsule envelope; wherein the windows are devoid of the light-transmissive coating and disposed in register with one another on opposite sides of an imaginary plane intersecting the optical axis and in which plane the optical axis lies; each window having an axial extent, as seen along the optical axis, that extends below the filament proximal portion towards the capsule base; and each window having an angular extent, in a direction around the optical axis on the capsule envelope, such that it is bounded by respective coated portions on the capsule envelope that have the light-transmissive coating and wherein each coated portion extends angularly in a region unoccupied by the two uncoated windows characterised in that the lamp capsule is a halogen lamp capsule, and in that the coating shifts a color temperature of white light transmitted therethrough to a higher color temperature. a capsule envelope having an upper region, a lower capsule base, and defining a longitudinal optical axis; a filament mounted within the capsule envelope for emitting light when energized by electrical energy, said filament mechanically supported by and electrically coupled to filament supports (30, 32) located within said capsule and electrically connected to leads (34, 36) extending from said capsule base; the filament having a filament axial extent along said capsule optical axis, the filament defining a filament distal portion proximate the capsule upper region and a filament proximal portion located proximate the capsule base; the capsule envelope being coated with a light-transmissive coating in a region extending between the capsule base and a location, as seen along the optical axis, axially above the filament distal portion, with the exception of two uncoated windows disposed along the capsule envelope; wherein the windows are devoid of the light-transmissive coating and disposed in register with one another on opposite sides of an imaginary plane intersecting the optical axis and in which plane the optical axis lies; each window having an axial extent, as seen along the optical axis, that extends below the filament proximal portion towards the capsule base; and each window having an angular extent, in a direction around the optical axis on the capsule envelope, such that it is bounded by respective coated portions on the capsule envelope that have the light-transmissive coating and wherein each coated portion extends angularly in a region unoccupied by the two uncoated windows characterised in that the lamp capsule is a halogen lamp capsule, and in that the coating shifts a color temperature of white light transmitted therethrough to a higher color temperature.