A device for irradiation of a biological product/substance is provided comprising a base a tray having a first and second side associated with the base and configured to receive a container holding the biological product/substance to be irradiated a first array of radiation-emitting bulbs mounted in the device adjacent the first side of the tray a second array of radiation-emitting bulbs mounted in device adjacent a second side of the tray a first filter mounted in the device between the tray and the first array of radiation-emitting bulbs for blocking and/or reflecting radiation emitted by the first array of a selected wavelength and a second filter mounted in the device beneath the second array of radiation-emitting bulbs for blocking and/or reflecting radiation emitted by the second array of the selected wavelength.