In this work we report exceptional efficacy, lifetime and color stability for all-phosphorescent white stacked organic light-emitting devices (SOLED®s). We report data for all-phosphorescent white SOLED pixels with two emissive units connected in series by a charge generation layer (CGL). At , to and lifetime to 70% of initial luminance , with color rendering index (CRI) = 82 to 83 and chromaticity meeting Energy Star criteria. We further report data for a white SOLED panel that operates at with efficacy, and chromaticity meeting Energy Star criteria. The panel has extremely low operating temperature that is only 6.4°C above ambient, and exceptional lifetime of when operated at .