An optical fiber bundle unit is provided for transmitting ultraviolet light in which the increase of the transmission loss caused by radicals generated in the optical fiber by irradiation or transmission of ultraviolet light is suppressed and a stable energy state is maintained even after the irradiation or transmission of ultraviolet light. A vertex coordinate transformation is defined for a rotated destination image. The controller monitors the primary power source, initiates powering by the bridge power source when the primary power source exhibits selected characteristics, initiates the secondary power source when the electrolysis cell is depleted exceeding a first selected threshold, and initiates interruption of powering by the secondary power source. If the host is not pass-through enabled, the host ignores the pass-through information. A climate control system can include a separator gasket located within a housing of a fluid module and at least partially between the cold passage and the hot passage.