A high-bay luminaire includes an upper housing having an outer wall defining an interior compartment. A plurality of first heat fins extend from the exterior of the outer wall. An angled wall extends from the outer wall at an oblique angle toward the center of the interior compartment. A base is connected to the upper housing. A light emitter is connected to the base. A lens is connected to the base and positioned below the light emitter. A driver is connected to the angled wall and operatively connected to the light emitter.A high-bay luminaire includes an upper housing having an outer wall defining an interior compartment. A plurality of first heat fins extend from the exterior of the outer wall. An angled wall extends from the outer wall at an oblique angle toward the center of the interior compartment. A base is connected to the upper housing. A light emitter is connected to the base. A lens is connected to the base and positioned below the light emitter. A driver is connected to the angled wall and operatively connected to the light emitter. The disclosure in some aspects relates to systems and related methods for the continuous freeze-drying of materials (e.g., pharmaceuticals) with high speed and control.
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