EHEIM reeflex UV -sterilizer with a new kind of reflector technology. 1.8 times more effective with less energy, the new Eheim Reeflex UV provides perfect results with lower energy consumption. Eheim Reeflex UV Sterilizers feature internally fitted high reflection aluminium which reflects the UV light and ensures highly efficient sterilization. There is no efficiency reduction in the filter due to the special construction of the UV sterilizer (no distortion of the water through flow).