There were many scratches made by rubbing with the package in the clear part. There was no problem when testing the batteries sold separately at the time of goods arrival, but when it was used in a few hours after drying in winter, it did not react even when touching the touch sensor This is a rather minus point. It seems that it is not a malfunction because it lights when touched with metal, but at the same time it is bad sensitivity. It may be that it was defective by chance. It is the plus point that the lens (clear part) can move and the irradiation range can be adjusted.